Tesztberendezés alkatrészei és tartozékai

5MM LED
Working current: 20 (mA)
Working voltage:
Red: 1.9V-2.1V
Yellow: 1.9V-2.1V
Green: 1.9V-2.1V
Blue: 3.0V-3.2V
White: 3.0V-3.2V
Orange: 2.0V-2.2V

Product Description
4 Channel Solid State Relay5V solid state relays 240V 2A, output with resistive fuse 240V 2A.
Input power supply: 5V DC (160MA)
Input control signal voltage:
0-2.5V low state relay 
Blue KF301 terminal connection control line is more convenient.
Module interface:
DC  : positive power supply (by relay voltage power supply)
DC-: connect power negative
CH: Relay Module signal triggering end (Low level trigger effective)
Note: Power must be DC voltage and need to be consistent with the voltage relay.

Product Description
Note: The input voltage of this module is 12V, which corresponds to the working voltage of the solar panel (nominal voltage) 12V
This is a solar charger for single-cell lithium battery High Power Point Tracking (MPPT). This MPPT solar charger allows you to get as much electricity as possible from solar panels or other photovoltaic devices and load it into a rechargeable lithium battery. It is very easy to use, just insert the solar panel into one side of the solar charger, then insert the battery into the other side, and you can start charging!
Solar Power Point Tracking (MPPT) is to ensure that the light intensity changes and the photovoltaic cells output high power to make full use of solar energy. Usually, a switch-mode DC-DC converter is needed to realize the MPPT function, keeping the product of output voltage and charging current large (output).
The output of the solar charger is designed to charge a single polymer lithium-ion battery. The load should be connected in parallel with the battery. Each solar charger is equipped with CN3791 power tracking battery charging circuit and pre-installed with four 2-pin JST/PH2.0 connectors.
By default, we set the hold voltage for MPPT. The input voltages are 6V 12V (corresponding to the working voltage of the solar panel 6V 12V), which is very suitable for applications where the input voltage and the battery voltage difference are large.
When the current output capability of the input power supply decreases, the internal circuit of CN3791 can automatically track the high power point of the solar panel. The user does not need to consider the bad situation, and the output power of the solar panel can be utilized to the greatest extent, which is very suitable for the application of power supply by the solar panel.
Features:
Input voltage: select the corresponding module according to the nominal voltage of the solar panel (6V 12V)
Output voltage: Nominal 3.7V, full junction voltage 4.2V lithium battery, single string lithium battery charging management
Interface: 2pin PH2.0/JST
Solar panel high-power point tracking function
Complete charge management for single-cell lithium batteries
Charging current up to 2A
PWM switching frequency: 300KHz
Constant voltage charging voltage: 4.2V±1%
Constant current charging current is set by external resistor
Trickle charge a deeply discharged battery
Automatic recharge function
Charge status and end of charge status indication
Soft start function
Battery terminal overvoltage protection
Working environment temperature: -40℃ to 85℃
Size: 45X20X9.5mm

Description:
You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now?
Using only two pins, control 16 free-running PWM outputs! You can even chain up 62 breakouts to control up to 992 PWM outputs
>It's an I2C-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
>It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4 forward voltages)
>6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs
>Adjustable frequency PWM up to about 1.6 KHz
>12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
>Configurable push-pull or open-drain output
>Output enable pin to quickly disable all the outputs
We wrapped up this lovely chip into a breakout board with a couple nice extras
>Terminal block for power input (or you can use the 0.1" breakouts on the side)
>Reverse polarity protection on the terminal block input
>Green power-good LED
>3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
>"Chain-able" design
>A spot to place a big capacitor on the V line (in case you need it)
>330 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
>Solder jumpers for the 6 address select pins

Product Description
1.The module have MICRO USB and serial port , so they can communicate with PC and other device conveniently.
2.The normal working voltage for modules is 5V.And module of ICSE014A have a power interface of 5V. Parameters are as follows:

ICSE012A ICSE013A ICSE014A Unit Remark
CC 4 2 8 channel countof module
I 400 250 700 mA working current
U 5 5 5 V input voltage
√ √ √ whether have serial port
9600 9600 9600 bit/s baud rate ofserialport
F 1000 1000 1000 Hz Module control frequency
× × √ Whether have power
Interface:
Modules all have Micro USB and serial port . Read following for details:

1.Micro USB: Standard micro USB mother mouth.
2.TX : Transmit
3.RX : Receive
4.5V : Volt current condenser
5.GND : Ground
6.Power Interface : Only ICSE014A have . Interface is used when Micro USB cannot give enough power.
Usage method:
USB usage method
Module connect with PC through USB . The connection method is as follows:
1.Then open ”Relay Board Manager” to operate the module . Read ” RelayBoardManager_Reference” for details of the software.

Serial port usage method
Module can communicate with other device directly through serial port .
Module can receive single byte from upper monitor ( baud rate 9600):

Upper Monitor 0x50 0x51
ICSE012A 0xAB
ICSE013A 0xAD
ICSE014A 0xAC
Module will turn to normal work state after receive “0x51” . Then every data byte will control the relay directly . Each bit controls a realy ( ‘0' mark start , ‘1' mark stop ) . Read following for details:
Bit ICSE012A ICSE013A ICSE014A Remark
0 √ √ √ Control the relay K1
1 √ √ √ Control the relay K2
2 √ × √ Control the relay K3
3 √ × √ Control the relay K4
4 × × √ Control the relay K5
5 × × √ Control the relay K6
6 × × √ Control the relay K7
7 × × √ Control the relay K8
Package Included:

1 x 4CH MICRO USB 5V 4-Channel Relay Module USB Control Relay Module Serial Port 4 Way

Introduction
1.Location number : 20
2.pulse number : 20
3.operating life : 30000 times
Package include:
5X EC11 Audio Digital Potentiometer

1.Description:
DC Motor Speed Controller,The full name of pulse width modulation is Pulse Width Modulator.Abbreviation PWM.DC motor governor is a device for adjusting the speed of a DC motor.
DC motor speed regulation, industrial conveyor belt speed regulation, lighting and lighting mediation, computer power supply cooling, DC fan, etc., have been widely used.
2.Features:
1>.High power;
2>.Small size;
3>.Low power consumption;
4>.Simple operation;
5>.Dual Driver;
6>.Support independent control for 2 motors;
7>.Support 433MHz remote control(Not include!).
3.Parameters:
1>.Product Name:5A Dual Motor Drive Module
2>.Product Number:ZK-5AD
3>.Working Voltage:DC 3.0V-14V
4>.Input Signal Voltage:DC 2.2V-6.0V
5>.Drive Current:5A
6>.Stand-by Current:10uA
7>.Working Temperature range:-20~85 Celsuis
8>.Working Humidity range:0% -95% RH
9>.Size:38*27*18mm
10>.Mounting hole diameter:2mm
4.Conventional control method
1>.Module can control 2 DC motors separately.
2>.D0 and D1 control Motor 1;
3>.D2 and D3 control Motor 2;
4>.High level signal is DC 2.2V-6.0V;
5>.Low level signal is DC 0.0V-0.7V;
6>.D0~D3 can receive control signal from MCU and other signal source;
7>.Control logic by Drive Logic Table shown as following in description picture.
5.Remote control mode(Don’t Include Remote control):
1>.It can be control by 433MHz Wireless Remote Control Switch Module.User can connect output from 433MHz receiver to input interface at motor drive module.But 433MHz Wireless Remote Control Switch Module is not include in this package! User need to prepare in advance or purchase separately.
2>.Its communication distance will just be about 20~30 meter if control motor.Due to interference from motor.
3>.Inching Mode:Motor rotation when press button and stop rotation when release button.Two motor’s work status are independent of each other.
4>.Self-locking Mode:Motor rotation when press button and stop rotation when press button again.Two motor’s work status are independent of each other.
5>.Interlocking Mode:Motor 1 will stop when Motor 2 is working;Motor 2 will stop when Motor 1 is working;Two motor’s work status are not independent.
6>.When changing the direction of rotation of the motor, please be sure to wait for the motor to completely stop,otherwise the module will be damaged due to excessive current.
7>.More information please refer to data sheet about 433MHz Wireless Remote Control Switch Module.
6.Note:
1>.When changing the direction of rotation of the motor, please be sure to wait for the motor to completely stop,otherwise the module will be damaged due to excessive current;
2>.Please don’t short circuit;
3>.Reverse connection protection is not supported;
4>.433MHz Wireless Remote Control Switch Module is not include in this package! User need to prepare in advance or purchase separately.
7.Application:
1>.Wireless remote control car;
2>.Ship model;
3>.Model airplane;
4>.Wireless temperature and humidity detection;
5>.Intelligent data collection;
6>.Motor drive.
8.Package:
1>.1pc ZK-5AD 5A Dual Motor Drive Module;

Description:
It is a Dual Power Filter Amplifier Power Board.Convert AC ot DC and used for amplifier.
Parameters:
Size: 67×38×28mm/PCB 1.6mm thick
Input voltage: dual AC AC 9～17V
Output voltage: dual DC DC ±12V～24V
Flat bridge current: 25A
Pitch: 60×31mm/Aperture: 3.2mm

Product Description
1 Channel Solid State Relay5V solid state relay 240V 2A, output with resistive fuse 240V 2A
Size: 24*32*21mm/0.94*1.25*0.82”
Input Power: 5V DC (160mA)
Input control signal voltage:
0-2.5V state low relay 
Input section:
DC  : positive power supply (by relay voltage power supply)
DC-: connect power negative
CH: relay module signal to trigger the end (Low level trigger effective)
Voltage version 5V
Static current 0mA
Working current 12.5mA
Trigger voltage 3.3-5V
Trigger current 2m

Introduction
The DRV8825 stepper motor driver carrier is the breakout board for TI's DRV8825 microstepping bipolar stepper motor driver.
feature:
Simple step and direction control interface
Six different step resolutions: full step, half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step
Can directly interface with 3.3 V and 5 V systems
Over-temperature thermal shutdown, over-current shutdown and under-voltage lockout
Ground short-circuit and load short-circuit protection
4-layer 2 oz copper PCB for improved heat dissipation
Exposed solderable ground pad under the driver IC on the bottom of the PCB
The module size, pinout and interface match in most aspects with our A4988 stepper motor driver carrier (for more information, please see the bottom of this page)
Adjustable current control allows you to use a potentiometer to set the maximum current output, allowing you to use a voltage higher than the rated voltage of the stepper motor to achieve a higher step rate
Intelligent chopper control, automatically select the correct current attenuation mode (fast decay or slow decay)
45 V maximum supply voltage
Built-in voltage regulator (no need for external logic voltage supply)
This module has almost the same pins and interfaces as our A4988 stepper motor driver carrier, so it can be used as a direct substitute for higher performance of these boards in many applications.
The DRV8825 has adjustable current limit, overcurrent and overheat protection, and six microstep resolutions (down to 1/32 steps). Its operating voltage is 8.2 – 45 V, and each phase can provide up to about 1.5 A of current without the need for a radiator or forced air flow (each coil has a rated current of up to 2.2 A and has enough additional cooling).
A4988
This product is a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product. This stepper motor driver lets you to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and 2 A.

The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program.The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.


Feature：

Simple step and direction control interface;

Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step;

Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated;

Voltage to achieve higher step rates;

3.3 and 5 V compatible logic supply

Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay);

Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection;

Short-to-ground and shorted-load protection.

Introduction
The DRV8825 stepper motor driver carrier is the breakout board for TI's DRV8825 microstepping bipolar stepper motor driver.
feature:
Simple step and direction control interface
Six different step resolutions: full step, half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step
Can directly interface with 3.3 V and 5 V systems
Over-temperature thermal shutdown, over-current shutdown and under-voltage lockout
Ground short-circuit and load short-circuit protection
4-layer 2 oz copper PCB for improved heat dissipation
Exposed solderable ground pad under the driver IC on the bottom of the PCB
The module size, pinout and interface match in most aspects with our A4988 stepper motor driver carrier (for more information, please see the bottom of this page)
Adjustable current control allows you to use a potentiometer to set the maximum current output, allowing you to use a voltage higher than the rated voltage of the stepper motor to achieve a higher step rate
Intelligent chopper control, automatically select the correct current attenuation mode (fast decay or slow decay)
45 V maximum supply voltage
Built-in voltage regulator (no need for external logic voltage supply)
This module has almost the same pins and interfaces as our A4988 stepper motor driver carrier, so it can be used as a direct substitute for higher performance of these boards in many applications.
The DRV8825 has adjustable current limit, overcurrent and overheat protection, and six microstep resolutions (down to 1/32 steps). Its operating voltage is 8.2 – 45 V, and each phase can provide up to about 1.5 A of current without the need for a radiator or forced air flow (each coil has a rated current of up to 2.2 A and has enough additional cooling).
A4988
This product is a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product. This stepper motor driver lets you to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and 2 A.

The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program.The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.


Feature：

Simple step and direction control interface;

Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step;

Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated;

Voltage to achieve higher step rates;

3.3 and 5 V compatible logic supply

Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay);

Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection;

Short-to-ground and shorted-load protection.

Introduction
The DRV8825 stepper motor driver carrier is the breakout board for TI's DRV8825 microstepping bipolar stepper motor driver.
feature:
Simple step and direction control interface
Six different step resolutions: full step, half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step
Can directly interface with 3.3 V and 5 V systems
Over-temperature thermal shutdown, over-current shutdown and under-voltage lockout
Ground short-circuit and load short-circuit protection
4-layer 2 oz copper PCB for improved heat dissipation
Exposed solderable ground pad under the driver IC on the bottom of the PCB
The module size, pinout and interface match in most aspects with our A4988 stepper motor driver carrier (for more information, please see the bottom of this page)
Adjustable current control allows you to use a potentiometer to set the maximum current output, allowing you to use a voltage higher than the rated voltage of the stepper motor to achieve a higher step rate
Intelligent chopper control, automatically select the correct current attenuation mode (fast decay or slow decay)
45 V maximum supply voltage
Built-in voltage regulator (no need for external logic voltage supply)
This module has almost the same pins and interfaces as our A4988 stepper motor driver carrier, so it can be used as a direct substitute for higher performance of these boards in many applications.
The DRV8825 has adjustable current limit, overcurrent and overheat protection, and six microstep resolutions (down to 1/32 steps). Its operating voltage is 8.2 – 45 V, and each phase can provide up to about 1.5 A of current without the need for a radiator or forced air flow (each coil has a rated current of up to 2.2 A and has enough additional cooling).
A4988
This product is a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product. This stepper motor driver lets you to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and 2 A.

The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program.The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.


Feature：

Simple step and direction control interface;

Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step;

Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated;

Voltage to achieve higher step rates;

3.3 and 5 V compatible logic supply

Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay);

Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection;

Short-to-ground and shorted-load protection.

Product Description
100% Brand new and high quality.
Shape: Same as the picture show
T Type GPIO Extension Board:
Compatible For Raspberry PI
Module: T Type GPIO Extension Adapter
GPIO Signal Ribbon Flat Cable:
Length: 20cm
Compatible For Raspberry Pi Mode B
GPIO Connector: 40-Pin
This 40 Pin Ribbon Cable is Specially Designed For Raspberry Pi Model B or model B, So You can Easily Connect it to the Low-Level Peripherals!

Product Description
100% Brand new and high quality.
Shape: Same as the picture show
T Type GPIO Extension Board:
Compatible For Raspberry PI
Module: T Type GPIO Extension Adapter
GPIO Signal Ribbon Flat Cable:
Length: 20cm
Compatible For Raspberry Pi Mode B
GPIO Connector: 40-Pin
This 40 Pin Ribbon Cable is Specially Designed For Raspberry Pi Model B or model B, So You can Easily Connect it to the Low-Level Peripherals!

Product Description
100% Brand new and high quality.
Shape: Same as the picture show
T Type GPIO Extension Board:
Compatible For Raspberry PI
Module: T Type GPIO Extension Adapter
GPIO Signal Ribbon Flat Cable:
Length: 20cm
Compatible For Raspberry Pi Mode B
GPIO Connector: 40-Pin
This 40 Pin Ribbon Cable is Specially Designed For Raspberry Pi Model B or model B, So You can Easily Connect it to the Low-Level Peripherals!

Product Description
100% Brand new and high quality.
Shape: Same as the picture show
T Type GPIO Extension Board:
Compatible For Raspberry PI
Module: T Type GPIO Extension Adapter
GPIO Signal Ribbon Flat Cable:
Length: 20cm
Compatible For Raspberry Pi Mode B
GPIO Connector: 40-Pin
This 40 Pin Ribbon Cable is Specially Designed For Raspberry Pi Model B or model B, So You can Easily Connect it to the Low-Level Peripherals!

Description:
In the process of circuit signal transmission, the voltage signal will weaken with the increase of the transmission distance, and the current transmission can avoid the weakening of the signal. The module is used for the end of current signal transmission, the signal is converted into voltage signal for SCM detection. The current input supports 4-20mA and 0-20mA, and the voltage output supports 0-3.3V 0-5V 0-10V.

Highlight:
The power supply voltage range is wide, and the output voltage supports multiple ranges;
Zero and full range can be adjusted automatically;
High stability, good linearity, industrial grade;
The sampling resistor of current signal adopts high precision color ring resistor, which has high precision, small temperature drift and high power

Instruction:
1. The module is connected according to the definition, the supply voltage is 7-36V (if the output is to 10V, the supply voltage must be greater than 12V)
2. After power on, the D2 light should be bright, otherwise please check the line connection. Board with reverse connection protection, reverse connection not burning.
3. When the current input is minimum (0mA or 4mA), adjust the ZERO potentiometer, so that the output of VOUT is minimum (0.0V or other voltage)
4. When the current input is the maximum (20mA), adjust the SPAN potentiometer, so that the VOUT output is the maximum value (3.3V or 5V or 10V, when the input is 4-20mA, the minimum output can be 2.5V).

According to your needs, select the corresponding range by jumper cap:
4--20ma:0--2.5V range: J1 1, 2 feet short connection, 3, 4 feet short connection
0--3.3V range: J1 1, 2 feet off, 3, 4 feet off
0--5.0V range: J1 1, 2 feet short connection, 3, 4 feet short connection
0--10.0V range: J1 1, 2 feet short connection, 3, 4 feet off
0--20ma:0--3.3V range: J1 1, 2 feet short connection, 3, 4 feet short connection
0--5.0V range: J1 1, 2 feet short connection, 3, 4 feet short connection
0--10.0V range: J1 1, 2 feet short connection, 3, 4 feet off

10pcs Universal IR Infrared Receiver TL1838 VS1838B 1838 38Khz

Product Description
Use chip: MPU-6050
Power supply: 3-5v (internal low dropout voltage regulator)
Communication method: standard IIC communication protocol
Chip built-in 16bit AD converter, 16-bit data output
Gyroscope range: ±250 500 1000 2000 °/s
Acceleration range: ±2±4±8±16g
Using Immersion Gold PCB, machine welding process to ensure quality
Pin pitch 2.54mm

Function Features:
1.Noncontact detection,moving object detecting
2.Transmitting frequency:24GHZ,can be widely applied in business,industries,word controlling etc
3.Provide various frequency range standards:-UK,-F.advanced low consumption PHEMT oscillator
4.Independent transmitting and receiving route, can get the biggest gain,single channel operation
5.High sensibility,high flexibility,low cost,operating distance:15m
6.Not influenced by temperature,humidity,noise,air flow,dust,ray etc,adaptive to terrible environment
7.Strong radio frequency interference resistance,stable performance,swift response,high sensibility
8.Out put power is 5mW,does no harm to human bodies
9.Long distance detection range:15m
10.Small volume,easy to install
11.Radar wave can penetrate through non metallic object,such as board,glass,plastics,fabric textile etc,unless there are concrete wall or metal board to obstruct
12.Human beings or objects facing the sensor to move wil receive the best detection result
Notice:
1.Don't operate during the power on in case of maloperation,wrong circuit or electric shock
2.Avoid installing the product in exposed place to prevent damage or affecting using longevity
3.Install the product far away from magnetic field in case of maloperation
4.Install the product far waay from moving conductors in case of maloperation
Parameter:
1.Transmitting Frequrency: min:24GHz typ:24.125GHz max:24.25GHz
2.Output Power:16dbm (tpy)
3.Operating Temperature:-20--60℃
4.Operating Current: tpy:30MA, max:40MA
5.Operating Voltage: tpy:5.5V
6.Pulse Width: tpy:10US
7.IF Output:-300--300MV
8.Appearance Size:25*25*7mm

Description
This driver uses Infineon chips BTS7960 composed of high-power drive full H-bridge driver module with thermal over-current protection. Double BTS7960 H-bridge driver circuit, with a strong drive and braking, effectively isolating the microcontroller and motor driver! High-current 43A
Features:
Double BTS7960 large current (43 A) H bridge driver;
5V isolate with MCU, and effectively protect MCU;
5V power indicator on board;
voltage indication of motor driver output end;
can solder heat sink;
Just need four lines from MCU to driver module (GND. 5V. PWM1. PWM2);
isolation chip 5 V power supply (can share with MCU 5 V);
size: 4 * 5 * 1.2 cm;
Able to reverse the motor forward, two PWM input frequency up to 25kHZ;
two heat flow passing through an error signal output;
isolated chip 5V power supply (can be shared with the MCU 5V), can also use the on-board 5V supply;
the supply voltage 5.5V to 27V;

Product features
P1DB dB 30 dBm typical @ 3 V
IP3 43 dBm typical @ 3 Vs low insertion loss (0.3 dB at 0.9 GHz)
Low DC power consumption
1. Power supply voltage: directly control the level through the control port
2. Frequency range (300KHZ-3GHZ)
3. Provide PDF schematic diagram

Specifications:
Temp:-50 ~80
Cycle time >100000 times
Quantity: 250pcs/1 Set
Features:
Long life span, durable.
Wide application.
Brand new and high quality.
Used in the fields of electronic products, household appliances and more.
This light touch switch is waterproof, prevent oil, anti-pollution, anti-static interference.
Good electrical Conductivity.
Compact and light weight, easy to carry and dismantling.
Applications: TV, Audio equipment, Video recorders, Cameras, Computers, Game consoles, Fax machines,Walkie-talkie, Batons, Machine tool control unit, Photocopying,Printers
Size:
25pcs x 3*4*2.5(bind feet)
25pcs x 3*4*2.5(white)
25pcs x 3*6*4.3(white pin)
25pcs x 3*6*5(white pin)
25pcs x 3*4*2 (2 feet, Yellow)
25pcs x 3*3.5*2 (4 feet, black)
25pcs x 4*4*1.5(4 feet, black&yellow)
25pcs x 4*4*0.8H(4 feet, black&yellow)
25pcs x 3*6*2.5(2 feet,black&white)
25pcs x 3*6*3.1H(4 feet, black&red)
Package includes: (10types , 25PCS/type each )
1x 250pcs Button Switch with Box
Note:
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Item specifics:
Item type: Switches
Model number: ESFWR43
Features: Button switch
Switch type: Touch On/Off Switch
Material: Plastic
Quantity: 250pcs/1 Set

RM065 Trimming Potentiometer Kit with Box
10 values*10pcs=100pcs 1box
RM065 1K(102) 10PCS
RM065 10K(103) 10PCS
RM065 100K(104) 10PCS
RM065 1M(105) 10PCS
RM065 2K(202) 10PCS
RM065 20K(203) 10PCS
RM065 200K(204) 10PCS
RM065 500 ohm (501) 10PCS
RM065 5K(502) 10PCS
RM065 50K(503) 10PCS

Product Description:
10A high current capacitive touch switch module, working sink current up to 3A, support stepless dimming, red and blue color indicator and other characteristics, can be widely used in lighting control, toys, household appliances, kitchen, bathroom mirror, and other products.
10A large sink current, multi-mode can be set
Mini small size, easy to install
Red and blue color indicator light
LED indicator is red, the touch sensor output is blue.
Specifications Model: OE-TP dimming (10A)
Power supply range: DC 5 ~ 20V (recommended 12v power supply)
Output current: sink current MAX 10A (recommended 3a work)
Protection function: power reverse protection
Sensing indication: the output red light
Work mode: configurable (default: with memory gradually dark, Promise dimming)
Touch distance: less than 6mm (glass acrylic)
Quiescent current: less than 5mA
Operating temperature: -40 ~ 85
Common anode connection:
For example, control of a 12V strip: VCC of a 12V power connector module.GND of the negative module.The controlled lamp has the VCC of the positive module. OUT of the negative module. After being powered on, the touch panel can be used to control the light strip, and the brightness of the light can be adjusted by touch.

For example, control of 12V motor speed regulation: VCC of the positive electrode module of a 12V power supply. GND of the negative module. VCC of the positive pole of the controlled motor. OUT of the negative module. After power-on, the motor can be controlled by a finger touch module, and motor speed control can be achieved by touch.

Control interface: a total of 3 pins (VCC, GND, OUT), VCC as the power supply, GND as the ground, OUT as the digital signal output pin;

LED indicator: electric green (blue) light, touch sensing output red light.

Touch area: The inner area of the fingerprint icon is triggered by a finger touch.

Positioning hole:2 M2 screw positioning holes, 2mm aperture, easy to install and position the module, to achieve module combination.

Application: 12V light bar (LED) brightness adjustment touch. 5-20V DC motor speed control.

Memory mode: the last brightness of the module set to boot the default brightness, the system power-down memory default value will be lost
Gradually brightening: light brightness gradually open to set the brightness, turn off the lights when the brightness gradually closed
Sudden bright light: lights when the brightness directly to set the brightness, turn off the lights when the lights directly off
Long press touch: to achieve stepless dimming, a long press touch, the brightness of the light gradually increased, the brightness of the light when the release time to release the brightness of the release, once again press the touch, the brightness gradually reduced.
When the brightness of the light when the release of the brightness of the release time, for motor speed, output voltage regulation and other occasions

Description
Temperature detection, temperature control sensor, ambient temperature detection
Module features:
1. Using NTC thermistor sensor, good sensitivity
2. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA.
3. The power distribution positioner adjusts the temperature detection threshold
4. Working voltage 3.3V-5V
5. Output form: digital switch output (0 and 1)
6. Equipped with fixing bolt holes for easy installation
7. Small board PCB size: 3.2cm x 1.4cm
8. Use wide voltage LM393 comparator
Module instructions
1. The thermistor module is very sensitive to ambient temperature and is generally used to detect the temperature of the surrounding environment;
2. By adjusting the potentiometer, you can change the temperature detection threshold (that is, the control temperature value). If you need to control the ambient temperature to 50 degrees, the module will adjust its green light to the corresponding ambient temperature, and the DO will output high power. When the temperature is lower than the set temperature value, the output is high and the green light is off;
3. The DO output terminal can be directly connected with the single-chip microcomputer, and the high and low level can be detected by the single-chip microcomputer, thereby detecting the temperature change of the environment;
4. The DO output terminal can directly drive the relay module of our store, which can form a temperature control switch to control the working temperature of related equipment, and can also be connected to a fan for heat dissipation, etc.;
5. The temperature detection range of this module is 20-80 degrees Celsius;
6. This module can also be replaced with a temperature sensor with a wire for the control of water temperature, water tank, etc.

Product Description
100% Brand new and high quality PCB Board
20pcs PCB Prototype Board Circuit Protoboard Universal Stripboard Prototyping Veroboard 2X8 3X7 4X6 5X7 5Pcs Each Mixed Double
Hole Diameter : about 1.0mm
Hole Pitch : 2.54mm
Board's thickness : 1.6mm
Number of the PCB holes :
2X8CM :6X28=168(holes)
3X7CM : 10X24=240(holes)
4X6CM : 20X14=280(holes)
5X7CM : 18X24=432(holes)
Size of the PCB Board : 2X8CM / 3X7CM / 4X6CM / 5X7CM
Item : 2*8 CM 3*7 CM 4*6CM 5*7CM Double -Sided PCB Board
20pcs PCB Protoboard = 5pcs each 2*8 CM 3*7 CM 4*6CM 5*7CM Double -Sided PCB Board

Product Description
NRF24L01 is a work in the 2.4-2.5GHz worldwide ISM band single-chip transceiver, wireless transceiver, including: the frequency generator the enhanced SchockBurstTM mode controller power amplifier crystal amplifier modulator demodulator output power channel selection and protocol set by the SPI interface to set a very low current consumption, lower current consumption mode 12.3mA Power-down mode and standby mode when in transmit mode emission power 6dBm when current consumption is 9.0mA acceptance model.
Ball to open ISM band maximum 0dBm transmit power, license-exempt use. The open 100 meters!
Support six channels of data reception
(1) low operating voltage: 1.9 ~~ 3.6V low-voltage
(2) high-rate: 2Mbps, air transmission time is very short, greatly reducing the wireless transmission of collision phenomena (software settings 1Mbps or 2Mbps air transmission rate)
Multi-frequency points: 125 frequency points, to meet the multi-point communications and frequency hopping communications needs
4 ultra-compact: built-in 2.4GHz antenna compact 15x29mm (including antenna)
(5) Low power consumption: when in answer mode communication, fast air transmission and start-up time greatly reduces the current consumption.
Low application cost: NRF24L01 integrates all RF protocol high-speed signal processing section, such as: automatically resend lost packets and automatically generate an acknowledge signal, etc. the nRF24L01 The SPI interface can take advantage of the microcontroller hardware SPI port or microcontroller I / O port to simulate the internal FIFO can be used with a variety of low-speed microprocessor interface, easy to use low-cost microcontroller.
7 facilitate the development: the link layer is fully integrated in the module, very easy to develop. Automatic retransmission function, automatic detection and retransmission of lost packets, the retransmission time and the number of retransmission can be software-controlled automatic storage is not received the packet of the response signal auto-answer, after the receipt of a valid data, the module automatically sends the reply fixed frequency detection signals without any additional programming Carrier Detect - built-in hardware CRC error detection and point-to-multipoint communication address control packet transmission error counter and carrier detection can be used for frequency hopping set can also set up six to receive the channel address, can have a choice of open receive channel standard the pin Dip2.54MM spacing interfaces for embedded applications.

Function Description:
l The size is exactly the same as most breadboards.
l Small and exquisite figure, suitable for various experimental equipment.
l Suitable for electronic developers to test circuits.

Features:
l Input voltage: 5V
l Output voltage: 5V/3.3V (switchable)
l Output current: less than 500mA
l Interface: Micro USB interface (power supply)
l Chip: 1117-3.3 voltage regulator chip

Product Description
1. Onboard ATMega8 (L) chip
2. Two indicator lights with power supply and programming
3. On-board overcurrent protection
4. Support 5V and 3.3V power supply for the target board
Support chip list
51 series:
AT89S51, AT89S52,, AT89S53, AT89S8252
AVR series:
ATTiny12(L), ATTiny13(V), ATTiny15(L), ATTiny24(V), ATTiny25(V), ATTiny26(L), ATTiny2313(V), ATTiny44(V), ATTiny45(V), ATTiny84(V), ATTiny85(V), AT90S2313(L), AT90S2323(L), AT90S2343(L), AT90S1200(L), AT90S8515(L), AT90S8535(L), ATMEGA48(V), ATMEGA8(L), ATMEGA88(V), ATMEGA8515(L), ATMEGA8535(L), ATMEGA16(L), ATMEGA162(V), ATMEGA163(L), ATMEGA164(V), ATMEGA165(V), ATMEGA168(V), ATMEGA169(V), ATMEGA169P(V), ATMEGA32(L), ATMEGA324(V), ATMEGA325(V), ATMEGA3250(V), ATMEGA329(V), ATMEGA3290(V), ATMEGA64(L), ATMEGA640(V), ATMEGA644(V), ATMEGA645(V), ATMEGA6450(V), ATMEGA649(V), ATMEGA6490(V), ATMEGA128(L), ATMEGA1280(V), ATMEGA1281(V), ATMEGA2560(V), ATMEGA2561(V), AT90CAN32, AT90CAN64, AT90CAN128, AT90PWM2(B) , AT90PWM3(B), etc.

Product Description
1. Onboard ATMega8 (L) chip
2. Two indicator lights with power supply and programming
3. On-board overcurrent protection
4. Support 5V and 3.3V power supply for the target board
Support chip list
51 series:
AT89S51, AT89S52,, AT89S53, AT89S8252
AVR series:
ATTiny12(L), ATTiny13(V), ATTiny15(L), ATTiny24(V), ATTiny25(V), ATTiny26(L), ATTiny2313(V), ATTiny44(V), ATTiny45(V), ATTiny84(V), ATTiny85(V), AT90S2313(L), AT90S2323(L), AT90S2343(L), AT90S1200(L), AT90S8515(L), AT90S8535(L), ATMEGA48(V), ATMEGA8(L), ATMEGA88(V), ATMEGA8515(L), ATMEGA8535(L), ATMEGA16(L), ATMEGA162(V), ATMEGA163(L), ATMEGA164(V), ATMEGA165(V), ATMEGA168(V), ATMEGA169(V), ATMEGA169P(V), ATMEGA32(L), ATMEGA324(V), ATMEGA325(V), ATMEGA3250(V), ATMEGA329(V), ATMEGA3290(V), ATMEGA64(L), ATMEGA640(V), ATMEGA644(V), ATMEGA645(V), ATMEGA6450(V), ATMEGA649(V), ATMEGA6490(V), ATMEGA128(L), ATMEGA1280(V), ATMEGA1281(V), ATMEGA2560(V), ATMEGA2561(V), AT90CAN32, AT90CAN64, AT90CAN128, AT90PWM2(B) , AT90PWM3(B), etc.

Note: This is a compatible version, not the original one. But exactly the same as the original function
HC-05
It's HC-05 Bluetooth module Slaveand master two in one module.

This module can be set to a transmitter or receiver, transmitter could pairing with receiver , receiver and receiver or transmitter and transmitter can't communication between, receiver could pairing with computers and cell phone bluetooth , when buying, the default for receiver.

Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
Module working voltage 3.3 V.
Potter default rate of 9600, the user can be set up.
The core module size : 28 mm x 15 mm x 2.35 mm.
Working current: matching for 30 MA, matching the communication for 8 MA.
Dormancy current: no dormancy.
Used for GPS navigation system, water and electricity gas meter reading system.
With computer and Bluetooth adapter, PDA, seamless connection equipment

Commercial Series: Bluetooth module board Series
With LED indicator light, use 150mA and 3.3V regulation chip.
With VCC.GND.TXD.RXD foot for the Bluetooth
With "Re-search" button(ON/OFF/WAKE foot for it , external MCU out/input "High level" can control module to re-search)
Compatible with Bluetooth master module "slave module" or master-slave(whole) module.
Input voltage: 3.3 -6V
Size: 1.55cm * 3.98cm

Note:
Input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply
We advise to install "Bluetooth master module"
The "State" is output foot for LED status, when Bluetooth "Unconnected", output "Pulse", when Bluetooth "connected", output "High level", we can determine the states from "MCU"
If only the board, No any "Bluetooth Function"



HC-06
This's HC-06 Bluetooth module.
Allows your device to both send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer.

Feature:
Works with any USB Bluetooth adapters.
Default Baud Rate: 9600,8,1,n.
Built in antenna.
Coverage up to 30ft.
Bluetooth version: V2.0 EDR
Operating voltage: 3.3V
Default Baud Rate: 9600,8,1,n.
Signal coverage: 30ft
Cable length: 21.5cm
Item size: 4.3 * 1.6 * 0.7cm
Item weight: 3g
Package size: 9 * 3 * 1cm
Package weight: 8g
Commercial Series: Bluetooth module board Series
With LED indicator light, use 150mA and 3.3V regulation chip.
With VCC.GND.TXD.RXD foot for the Bluetooth
With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
Compatible with bluetooth master module".slave module"or master-slave(whole) module.
Input voltage: 3.3~6V
Size: 1.55cm*3.98cm

Note:
Input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply
We advise to install "Bluetooth master module"
The "State" is output foot for LED status, when bluetooth "Unconnected", output "Pulse" ; when bluetooth "connected", output "High level", we can determine the states from "MCU"
If only the board , No any "Bluetooth Function"

Note: This is a compatible version, not the original one. But exactly the same as the original function
HC-05
It's HC-05 Bluetooth module Slaveand master two in one module.

This module can be set to a transmitter or receiver, transmitter could pairing with receiver , receiver and receiver or transmitter and transmitter can't communication between, receiver could pairing with computers and cell phone bluetooth , when buying, the default for receiver.

Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
Module working voltage 3.3 V.
Potter default rate of 9600, the user can be set up.
The core module size : 28 mm x 15 mm x 2.35 mm.
Working current: matching for 30 MA, matching the communication for 8 MA.
Dormancy current: no dormancy.
Used for GPS navigation system, water and electricity gas meter reading system.
With computer and Bluetooth adapter, PDA, seamless connection equipment

Commercial Series: Bluetooth module board Series
With LED indicator light, use 150mA and 3.3V regulation chip.
With VCC.GND.TXD.RXD foot for the Bluetooth
With "Re-search" button(ON/OFF/WAKE foot for it , external MCU out/input "High level" can control module to re-search)
Compatible with Bluetooth master module "slave module" or master-slave(whole) module.
Input voltage: 3.3 -6V
Size: 1.55cm * 3.98cm

Note:
Input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply
We advise to install "Bluetooth master module"
The "State" is output foot for LED status, when Bluetooth "Unconnected", output "Pulse", when Bluetooth "connected", output "High level", we can determine the states from "MCU"
If only the board, No any "Bluetooth Function"



HC-06
This's HC-06 Bluetooth module.
Allows your device to both send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer.

Feature:
Works with any USB Bluetooth adapters.
Default Baud Rate: 9600,8,1,n.
Built in antenna.
Coverage up to 30ft.
Bluetooth version: V2.0 EDR
Operating voltage: 3.3V
Default Baud Rate: 9600,8,1,n.
Signal coverage: 30ft
Cable length: 21.5cm
Item size: 4.3 * 1.6 * 0.7cm
Item weight: 3g
Package size: 9 * 3 * 1cm
Package weight: 8g
Commercial Series: Bluetooth module board Series
With LED indicator light, use 150mA and 3.3V regulation chip.
With VCC.GND.TXD.RXD foot for the Bluetooth
With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
Compatible with bluetooth master module".slave module"or master-slave(whole) module.
Input voltage: 3.3~6V
Size: 1.55cm*3.98cm

Note:
Input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply
We advise to install "Bluetooth master module"
The "State" is output foot for LED status, when bluetooth "Unconnected", output "Pulse" ; when bluetooth "connected", output "High level", we can determine the states from "MCU"
If only the board , No any "Bluetooth Function"

Description:
LC SX1308 booster module carrying SX1308 chip, its packagnig is small, and high efficiency. The output power can be adjust, maximum can arrive 28V and its interior integrate the lowest RDS internal resistance 100mΩ metal oxide semiconductor field effect transistor (mosfet), which can realize large current output of up to 2A. It widely used in 3G network products, digital products, mobile power supply,battery power supply, equipment, etc.

Features:
Oscillation frequency 1.2MHz
efficiency is as high as 95%
Circuit has short circuit protection, overheating protection function
10k to adjust potentiometer, adjust the output voltage

Parameters:
Maximum input voltage: DC 2-24V
Maximum output voltage: DC 2-28V
Switching frequency: 1.2MHz
Maximum current output: 2A

Product Description
Size: 81mm*81mm*1.6mm (thickness)
Thickness: 1.6mm Material: FR4 military grade
PCB board color: blue, digital tube display: red
Power supply voltage: 5V (powered through the miniUSB interface, not through the battery to power the entire board)
Other accessories: four studs for consolidation

Baby function description:
1. Year, month, day, time, temperature wheel display: a new upgrade to the wheel display, you don’t need to press the button again if you want to see the date and temperature, it's more convenient and simple!
2. Hourly timekeeping: When the hourly timekeeping function is turned on, the time will be reported from 8 am to 22:00 every day, and the time will not be reported when sleeping at night. Of course, you can also turn off the hourly timekeeping function!
3. Alarm clock: There is an alarm clock, and you can set the alarm time at will. In the previous version, many children's shoes said that the alarm time was too long, but many children's shoes said that the alarm time was too short. When the boss was in a dilemma, he decided to make the alarm time adjustable!
4. Temperature alarm: When the ambient temperature is lower than the set minimum temperature or higher than the set maximum temperature, an alarm will be issued to remind you to turn on or off the air conditioner to keep your home at a moderate temperature!
5. Power down time: After adjusting the preset time, even if the power is down, there is no need to reset the time after power on again.
6. LED display options: There are as many as 10 display patterns on the outer ring LED.

Product Description
not includingProduct Description battery
is a extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping. Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line. The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package.
RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus.
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output, and if necessary, automatically switch to the backup power supply. In addition, / RST pin is monitored as generating μP reset manually.
Save time and high precision addition, DS3231 also has some other features that extend the system host of additional features and a range of options. The device integrates a very precise digital temperature sensor, through the I2C * interface to access it (as the same time). This temperature sensor accuracy is ± 3 ° C. On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply. If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. When the main power re-power or voltage value returns to within the allowable range, the on-chip reset function can be used to restart the system microprocessor.
Module parameters:
1 Size: 38mm (length) * 22mm (W) * 14mm (height)
2 Weight: 8g
3 Operating voltage :3.3 - 5 .5 V
4 clock chip: high-precision clock chip DS3231
5 Clock Accuracy :0-40 ° range, the accuracy 2ppm, the error was about 1 minute
6 calendar alarm clock with two
7 programmable square-wave output
8 Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
9 chip temperature sensor comes with an accuracy of ± 3 °
10 memory chips: AT24C32 (storage capacity 32K)
11.IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
12 can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
13 with rechargeable battery LIR2032, to ensure the system after power failure, the clock move any natural normal
14 Packing: single anti-static packaging
Wiring instructions (for Arduino uno r3 for example):
SCL → A5
SDA → A4
VCC → 5V
GND → GND

JQ8400-FL USB Voice Module Programmable Motion Activated Recordable Greeting Card MP3 player Sound Module

1. Onboard voltage, current, power meter, you can easily use this module without a multimeter, which is more convenient and intuitive.
2. The onboard USB interface can easily charge your digital products. (Note: The USB output voltage is the same as the module output voltage, not a fixed 5V output, please confirm before charging the USB device)
3. High power, high efficiency, 5A, low ripple;
4. Three major functions:
(1) Use as an ordinary step-down module with over-current protection capability;
(2) Used as a charger for various voltage values of lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery packs), used in solar panels, wind generators and other occasions;
(3) Use as a high-power LED constant current drive module;
5. With two modes of constant voltage and constant current, there are indicators to indicate which mode the module is currently in;
6. When used as a lithium battery charger, the float voltage and charging current can be set, and an indicator light indicates
Indicates whether it is charging or fully charged;
7. With current-limiting protection function, the module will not be burnt out even if the output is short-circuited.
8. The onboard voltage and ammeter can be self-calibrated, and there will never be inaccurate problems!
9. With heat sink, free copper pillar!
Module parameters
Input voltage: 5-36V
Output voltage: 1.25-32V continuously adjustable
Output current: adjustable, maximum 5A (recommended to use within 4.5A)
Output power: maximum 75W (recommended to use within 50W, please reduce the power when using large pressure difference)
Working temperature: -40~ 85 degrees
Working frequency: 180KHz
Conversion efficiency: up to 96%
Short circuit protection: Yes
Over-temperature protection: Yes (automatically shut down the output after over-temperature)
Input reverse connection protection: None, (if necessary, please insert a high-current diode in series in the input)
Installation method: 4 3mm screws
Wiring mode: wiring terminal or welding terminal, V-IN is input, V-OUT is output
Module size: length 68.2mm width 38.8mm height 15mm
Weight: 39g
Scope of application
1. Use as an ordinary step-down module with over-current protection capability
Instructions:
(1) Press the button on the right to adjust the digital meter to the [Display output voltage] interface, and adjust the "constant voltage potentiometer" to make the output voltage reach the voltage value you want;
(2) Adjust the digital meter to the [Display output current] interface, and directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer" to make the The current value reaches the preset overcurrent protection value; (for example, the current value displayed by the on-board ammeter is 4A, then the maximum current of the module is limited to 4A, and the red indicator light is on when the current reaches 4A)
(3) Connect the load and work.
2. Use as a battery charger
The module without the constant current function cannot be used to charge the battery. Because the voltage difference between the exhausted battery and the charger is large, the charging current is too large and the battery is damaged. Therefore, the battery must be constant at the beginning. Current charging, when the charging reaches a certain level, it will automatically switch back to constant voltage charging.
Instructions:
(1) Determine the floating voltage and charging current of the battery; (If the lithium battery parameter is 3.7V/2200mAh, then the floating voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA)
(2) Under no-load conditions, adjust the digital meter of the module to the [Display output voltage] interface, and adjust the "constant voltage potentiometer" to make the output voltage reach the float voltage;
(3) Adjust the digital meter to the [Display output current] interface, and directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer" to make the The current value reaches the preset charging current value;
(4) The default charging current of the rechargeable lamp is 0.1 times the charging current; (The current of the battery is gradually reduced during the charging process, and gradually changes from constant current charging to constant voltage charging. If the charging current is set to 1A, then when the charging current is set to 1A, When the charging current is less than 0.1A, the blue light is off and the green light is on, and the battery is fully charged at this time)
(5) Connect the battery and charge it.
(Steps 1, 2, 3, 4 are: the input terminal is connected to the power supply, and the output terminal is not connected to the battery without load)
3. Use as LED constant current drive module
(1) Determine the operating current and maximum operating voltage you need to drive the LED;
(2) Under no-load conditions, adjust the digital meter to the [Display output voltage] interface, and adjust the "constant voltage potentiometer" to make the output voltage reach the LED operating voltage;
(3) Adjust the digital meter to the [Display output current] interface, and directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer" to make the The current value reaches the preset LED working current;

(4) Connect the LED and test the machine.
(Steps 1, 2, and 3 are: the input is connected to the power supply, and the output is no-load without the LED light)

Description
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
How to get started in :
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>
into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package,
you can always get the latest version of it.

Feature:
This is a great DC to DC step-up power supply module for electric equipment, digital products, etc.
Input and output are designed with screw terminals for convenient wire connection and disconnection.
There is a heat sink on board that would ensure a better heat dissipation.
Designed with USB and 2.5A large current output, can identify resistance and charge several phones at same time.
It can also be used as a power supply for laptops or voltage regulator for solar panels.
Specification:
Input Voltage: DC 3 -35V
Output Voltage: DC 5 -45V
Input Current: 5A(Peak)
Voltage Display Range: 5 -30V(if input voltage is lower than 4.5V, it will not display)
Voltage Display Error: ±0.1V
Size: 72*48*16mm / 2.83*1.89*0.63"
Note:
1This is a boost module so output voltage should be higher than input voltage.
Peak output current is less than 5A.
This kit requires professional knowledge and ability, please make sure you know how to use it.
Instruction:
1. Connect the module to power supply (4.5-40V), the input indicator light is on, and module is working normally.
2. Adjust the blue potentiometer knob (generally turn clockwise to step up and turn counterclockwise to step down) and check the output voltage with a multimeter until it meets requirement.
3.If the output voltage of the module can not be adjusted, which means it is always equal to the input voltage, please turn the potentiometer counter-clockwise for several circles then the voltage can be adjusted normally.
Package Include:
1 x XH-M411 DC-DC 3 -35V to 5 -45V 5A Step Up Converter Boost Power Supply Board

Product Description
Everyone knows that the frequency divider is installed in the speaker to achieve crossover and change the effect. The ancient crossover is rigid. If it is not suitable for the user, it will not be changed. Sometimes the treble is too strong and the bass surface is poor, or the bass is too strong and the overall performance is not clear. It is difficult for beginners to solve it; It is not necessarily appropriate if the frequency is changed, and the cost is high. The frequency divider is a multi-purpose, fully adjustable, free of welding, very convenient to use, and the listener can realize automatic debugging according to their own preferences. It can be used in a wide range. It can be used with a two-way speaker with a tweeter bass, a small satellite box with a 2.1 mid-range and a high pitch, and a full-range speaker for a car. You can also use the tweeter or the bass alone. Speaker impedance of 4-16 ohms can be used, as long as the power of the speaker is below 400W, there is no problem.
Product parameters:
Model: YLY-2088.
Dimensions: length 7 cm, width 5 cm, thickness 2.5 cm.
Frequency point: No positioning, determined by debugging.
Power: 400W.
Impedance: 4-16 ohms.
Materials: The inductor is wound by oxygen-free copper, and the wire diameter of pure copper wire is 08, which has been verified by our shop. Large capacity capacitor, reasonable design, exquisite appearance, full self-control of sound quality.

Product Description
23 ULTRA-SMALL QFN PACKAGE: The ADS1113, ADS1114, and ADS1115 are
2mm × 1,5mm × 0,4mm precision analog-to-digital converters (ADCs) with 16
WIDE SUPPLY RANGE: 2.0V to 5.5V bits of resolution offered in an ultra-small, leadless
LOW CURRENT CONSUMPTION: QFN-10 package or an MSOP-10 package The ADS1113 / 4/5 are designed with precision, power, and.
Continuous Mode: Only 150A ease of implementation in mind The ADS1113 / 4/5.
Single-Shot Mode:. Auto Shut-Down feature an onboard reference and oscillator Data are
PROGRAMMABLE DATA RATE: transferred via an I2C-compatible serial interface; four
8SPS to 860SPS I2C slave addresses can be selected. The
INTERNAL LOW-DRIFT ADS1113 / 4/5 operate from a single power supply
VOLTAGE REFERENCE ranging from 2.0V to 5.5V.
INTERNAL OSCILLATOR The ADS1113 / 4/5 can perform conversions at rates
INTERNAL PGA up to 860 samples per second (SPS). An onboard PGA is available on the ADS1114 and ADS1115 that
I2C INTERFACE: Pin-Selectable Addresses offers input ranges from the supply to as low as
FOUR SINGLE-ENDED OR TWO ± 256mV, allowing both large and small signals to be
DIFFERENTIAL INPUTS (ADS1115) measured with high resolution. The ADS1115 also
features an input multiplexer (MUX) that provides two PROGRAMMABLE COMPARATOR differential or four single-ended inputs.
(ADS1114 and ADS1115)
The ADS1113 / 4/5 operate either in continuous
APPLICATIONS conversion mode or a single-shot mode that
PORTABLE INSTRUMENTATION automatically powers down after a conversion and greatly reduces current consumption during idle
CONSUMER GOODS periods. The ADS1113 / 4/5 are specified from -40 ° C
BATTERY MONITORING to 125 ° C.

ADS1015

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 12 bit converter.
The chip's fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. The address can be changed to one of four options (see the datasheet table 5) so you can have up to 4 ADS1015's connected on a single 2-wire I2C bus for 16 single ended inputs.

Description:
TDA2030A audio amplifier circuit, often using V-5-pin single in-line plastic package structure. The integrated circuit is widely used in car stereo receiver tape recorders, medium-power audio equipment, with small size, large output power, distortion and other characteristics. And has an internal protection circuit.
Feature:
1. onboard TDA2030A audio power amplifier chip
2. mono 18W amplifier circuit design
3.on-board speaker wiring blocks
4.onboard 10K adjustable resistance, you can adjust the volume of amplification
5. Onboard power indicator
6. the chip has been the main pin leads, you can directly enter the audio signal
7. the working voltage: 6 ~ 12V
8.The peak output current is 3A

Product Description
Green：
1. This module uses high-performance imported chips, which have better performance than ordinary modules.
2. Input any DC voltage from 0.9V to 5V, and can output 5V DC voltage stably. It can output current up to 200~300MA when powered by a single AA battery, and can output current of 500～600MA when powered by two AA batteries. Power your mobile phone (iphone can't temporarily), camera, single chip microcomputer and digital products
3. Industrial temperature range: prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags"-40℃--- 85℃
4. High conversion efficiency, up to 96%
5. With a USB socket, it has a wide range of uses
6. Ultra-small size (PCB board 25mm*18mm), used for installation in various small equipment
7. With working indicator
Blue
1. Onboard ultra-small PFM control DC/DC boost controller chip
2. Input any DC voltage from 0.9V to 5V, and output 5V DC voltage stably
3. On-board USB female socket, which can directly supply power to USB interface devices
4. Onboard input voltage indicator

Product Description
Green：
1. This module uses high-performance imported chips, which have better performance than ordinary modules.
2. Input any DC voltage from 0.9V to 5V, and can output 5V DC voltage stably. It can output current up to 200~300MA when powered by a single AA battery, and can output current of 500～600MA when powered by two AA batteries. Power your mobile phone (iphone can't temporarily), camera, single chip microcomputer and digital products
3. Industrial temperature range: prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags"-40℃--- 85℃
4. High conversion efficiency, up to 96%
5. With a USB socket, it has a wide range of uses
6. Ultra-small size (PCB board 25mm*18mm), used for installation in various small equipment
7. With working indicator
Blue
1. Onboard ultra-small PFM control DC/DC boost controller chip
2. Input any DC voltage from 0.9V to 5V, and output 5V DC voltage stably
3. On-board USB female socket, which can directly supply power to USB interface devices
4. Onboard input voltage indicator

Product description
For sound detection
Module has two outputs:
1, AO, analog output, real-time output voltage signal of the microphone
2, DO, when the sound intensity reaches a certain threshold, the output high and low signal [threshold - sensitivity can be adjusted via potentiometer]
Module features:
2, there is a mounting screw hole 3mm
3, the use 5v DC power supply
4, with analog output
5, there are threshold level output flip
6, high sensitive microphone and high sensitivity.
7, a power indicator light
8, the comparator output is light

Product Description
ir transmitter module.
Supply voltage: 5V
Working environment: -25 ~ 85 °
Storage temperature: -30 ~ 100 °
Wavelength: 940nm
Module size: 13.7mm × 27.8mm
Module weight: 1g
Signal type: digital signal
Infrared center wavelength: about 850nm-940nm
Infrared emission angle: about 20 degrees
Infrared emission distance: about 1.3 meters (5V 38Khz)
ir receivr modules.
1. Adopt 1838 remote control receiver with high sensitivity
2. Working voltage 5V
3. output type: digital outputs
4. There are 2 fixing holes for easy installation. Aperture 3.1mm
5. with date indicator
6. PCB size: 23.5*21.5mm
Wiring instructions:
1.DAT digital output interface
2.VCC 5V DC power supply positive
3.GND 5V DC power supply negative

Product Description
ir transmitter module.
Supply voltage: 5V
Working environment: -25 ~ 85 °
Storage temperature: -30 ~ 100 °
Wavelength: 940nm
Module size: 13.7mm × 27.8mm
Module weight: 1g
Signal type: digital signal
Infrared center wavelength: about 850nm-940nm
Infrared emission angle: about 20 degrees
Infrared emission distance: about 1.3 meters (5V 38Khz)
ir receivr modules.
1. Adopt 1838 remote control receiver with high sensitivity
2. Working voltage 5V
3. output type: digital outputs
4. There are 2 fixing holes for easy installation. Aperture 3.1mm
5. with date indicator
6. PCB size: 23.5*21.5mm
Wiring instructions:
1.DAT digital output interface
2.VCC 5V DC power supply positive
3.GND 5V DC power supply negative

Product Description
ir transmitter module.
Supply voltage: 5V
Working environment: -25 ~ 85 °
Storage temperature: -30 ~ 100 °
Wavelength: 940nm
Module size: 13.7mm × 27.8mm
Module weight: 1g
Signal type: digital signal
Infrared center wavelength: about 850nm-940nm
Infrared emission angle: about 20 degrees
Infrared emission distance: about 1.3 meters (5V 38Khz)
ir receivr modules.
1. Adopt 1838 remote control receiver with high sensitivity
2. Working voltage 5V
3. output type: digital outputs
4. There are 2 fixing holes for easy installation. Aperture 3.1mm
5. with date indicator
6. PCB size: 23.5*21.5mm
Wiring instructions:
1.DAT digital output interface
2.VCC 5V DC power supply positive
3.GND 5V DC power supply negative

Parameters:
Circuit board: 1.6mm thick, 48mm diameter
Supply voltage: 5V DC voltage.
Function Introduction:
The circuit of this set adopts sound control of 10 LED flowing light, which can show the function of CD4017 intuitively. It is a set of learning counter, frequency divider and color light controller.At the same time, the kit has a good effect, very interesting and practical,.
Schematic diagram: