Kereskedelmi, irodai és ipari

Description
1.Long female pins x2
2.Short female pins x2
3.Normal pins x 2
4.WS2812B RGB Shield x 1

Package Included:

1 x WS2812B RGBSHIELD for WeMos D1 mini

Product Description
Two main technical parameters:
1: Voltage: DC5V 2: Quiescent Current: <2mA
3: level output: the output of the high-5V 4: level: the end of 0V
5: Induction Angle: not more than 15 degrees: detection range: 2cm-450cm

7: High precision: up to 0.3cm

Panel wiring, VCC, trig 's (control side), the echo (receiving end), out (empty feet), GND

Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal.

OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!

Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.

This module can be provided ranging program: C51, PIC18F877 microcontroller Yoshitatsu three MCU test reference.

3 the module URF04 works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) a signal to return to a high IO output, high duration of the ultrasonic time from launch to return.

Test distance = (time high * speed of sound (340M / S)) / 2;

This product is simple to use, and a Control Port high above a 10US, you can wait for the high output at the receiving port. An output can open the timer can be read when this port goes low timer value for the time ranging be calculated distance. such a continuous cycle of measurement, you move to measure the value we can achieve ~ ~~

The module works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) the signal to return, a high IO output, high duration of

Ultrasonic time from launch to return. Test distance = (time high * speed of sound (340M / S)) / 2;

Product Description
Two main technical parameters:
1: Voltage: DC5V 2: Quiescent Current: <2mA
3: level output: the output of the high-5V 4: level: the end of 0V
5: Induction Angle: not more than 15 degrees: detection range: 2cm-450cm

7: High precision: up to 0.3cm

Panel wiring, VCC, trig 's (control side), the echo (receiving end), out (empty feet), GND

Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal.

OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!

Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.

This module can be provided ranging program: C51, PIC18F877 microcontroller Yoshitatsu three MCU test reference.

3 the module URF04 works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) a signal to return to a high IO output, high duration of the ultrasonic time from launch to return.

Test distance = (time high * speed of sound (340M / S)) / 2;

This product is simple to use, and a Control Port high above a 10US, you can wait for the high output at the receiving port. An output can open the timer can be read when this port goes low timer value for the time ranging be calculated distance. such a continuous cycle of measurement, you move to measure the value we can achieve ~ ~~

The module works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) the signal to return, a high IO output, high duration of

Ultrasonic time from launch to return. Test distance = (time high * speed of sound (340M / S)) / 2;

Product Description
Two main technical parameters:
1: Voltage: DC5V 2: Quiescent Current: <2mA
3: level output: the output of the high-5V 4: level: the end of 0V
5: Induction Angle: not more than 15 degrees: detection range: 2cm-450cm

7: High precision: up to 0.3cm

Panel wiring, VCC, trig 's (control side), the echo (receiving end), out (empty feet), GND

Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal.

OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!

Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.

This module can be provided ranging program: C51, PIC18F877 microcontroller Yoshitatsu three MCU test reference.

3 the module URF04 works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) a signal to return to a high IO output, high duration of the ultrasonic time from launch to return.

Test distance = (time high * speed of sound (340M / S)) / 2;

This product is simple to use, and a Control Port high above a 10US, you can wait for the high output at the receiving port. An output can open the timer can be read when this port goes low timer value for the time ranging be calculated distance. such a continuous cycle of measurement, you move to measure the value we can achieve ~ ~~

The module works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) the signal to return, a high IO output, high duration of

Ultrasonic time from launch to return. Test distance = (time high * speed of sound (340M / S)) / 2;

Product Description
1. Chip: KA2284;

2. Supply voltage: 3.5V-12V;

3. The magnitude of the level can be adjusted;

4. AC and DC signals can be controlled by jumper;

5. PCB board size: 29 (mm) x21 (mm);

Description
Infrared receiving module adopts 1838 infrared receiving head
Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity
Widely used in: stereo, TV, video machine, disc machine, set-top boxes, digital photo frame, car stereo, remote control toys, satellite receivers, hard disk player, air conditioner, heater, electric fan, lighting and other home appliances
Dimension: 6.4 x 7.4 x 5.1mm
Receiving angle: 90 °
Working voltage: 2.7 ~ 5.5V
Frequency: 37.9KHz
Receiving range: 18m

A module description
1 pair HG7881 chip motor drive
2Power ModulesVoltage : 2.5-12V
3 for motor Range: between the motor operating voltage 2.5v-12V, maximum operating current 0.8A, the current smart car voltage and current market are within this range
4Can simultaneously drive two DC motors ,OrA 4-wire two -phase stepper motor.
5PCB board size : 2.8cm * 2.1cmUltra-small size , suitable for assembly
6 is provided with a fixed mounting hole , diameter : 3mm
Two module interface specification
[ 6P black curved pin description]
1 VCC External2.5V-12V voltage
2 GND GND External
3IA1 External microcontrollerIO port
4IB1 External microcontrollerIO port
5 IA2External microcontrollerIO port
6 IB2External microcontrollerIO port
[ 4P green terminal description]
1 OA1 OB1 DC 2 -pin connection , without direction
2 OA2 OB2 DC 2 -pin connection , without direction
Three ModulesInstructions
Switched VCC, GND module power indicator light
IA1Input high ,IA1Input low , [OA1 OB1 ]Motor is transferred ;
IA1Input low ,IA1Input high , [OA1 OB1 ]Motor reverse ;
IA2Input high ,IA2Input low , [OA2 OB2 ]Motor is transferred ;
IA2Input low ,IA2Input high , [OA2 OB2 ]Motor reverse ;

Product Description:
1. Features
1). The sensitivity of the sensor is adjustable.
2). Angle processing humanized design.
3) Standard XH2.54 interface.
2. Scope of application
It can meet various resistance sensors (such as photoresistors, thermistors, etc.).
3. Specification
Operating voltage: 3.3 V to 5 V.
Output form: analog output.
b: Digital output, output threshold.
Product size: 29.5 mm * 13.5 mm.
Mounting hole size: Φ3.
4. Instructions
1. The probe input interface has two rows of needles, which can meet various resistance sensors (such as photoresistors, thermistors, etc.), internal pull-up 10K voltage divider voltage sensor input comparator, adjustable resistance voltage comparator internal supervision negative The input voltage is compared, and the comparison result is output (when the positive terminal voltage is higher than the negative terminal, the output is 1, otherwise it is 0).
2. The output is connected to any IO port of the SCM (according to the process definition), and the low-level change is detected by the single-chip microcomputer, thereby detecting the change of the environmental brightness.
3. The analog output AO of the small board can be connected to the input voltage acquisition.

Product Description
The USB to RS232 conversion cable makes it easy to connect USB and serial devices, so that the serial devices have plug-and-play, hot-swappable and other functions. It can be used to connect notebooks to various serial devices, suitable for communication with mini phones, digital cameras, MODEM, ISDN terminal adapters, LED control cards, 51 single-chip microcomputers (STC11, 12C series industrial equipment serial ports do not support) ARM, ARM9 does not support .
Features
Single chip 340 USB port to serial port communication
USB1.1/2.0 compatible solution
Built-in 128 byte TX / 512 byte RX buffer
Support automatic handshake protocol
Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/Support full-speed USB data transfer protocol
Anti-electromagnetic interference design
Data Exchange Application

USB to RS485 Converter Adapter
USB connector: to your PC
RS485 connector: to your RS485 device
No need external power, powered by USB port
Fully compliant USB 2.0 standard , backward compatible with USB1.1
Specification:
Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
Supports baud rate range : 75bps - 115200bps , up to 6Mbps
Work temperature range: -40°C ~ 85°C
Communication distance :1200m(max)
Dimension:6.1x1.6x1.3cm
Color: Black
Applications:
All kinds with RS485 port device parameter settings , data communication
Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be .
• LED display of communication data
• Machine PLC data reading and writing
• Monitoring data read and write , and PTZ control
• centralized control of household electrical appliances
• Access Control System ; card
• a variety of industrial automation ; instrumentation
• Parking ; bus fees
• Dining Hall ; staff attendance
• highway toll station; ATM machine

Description:
TCRT5000 infrared sensor emits infrared emitting diode continuously when no infrared rays emitted or reflected back is reflected back but the strength is not large enough, the phototransistor has been in the off state, and the output terminal of the module is high, indicating that the diode has been in the off state; in the object to be detected within the detection range, and the intensity of the reflected infrared rays is large enough, phototransistor saturated, and the output terminal of the module is low, the indicator LED is lit.

Feature:

1. Using infrared reflective sensor TCRT5000
2. The detection distance: 1mm ~ 8mm apply focal distance of 2.5mm
3. The comparator output signal clean, good waveform, driving ability, more than 15mA.
4. With a multi-turn precision potentiometer adjustable sensitivity adjustment
5. The working voltage of 3.3V-5V
6. The output format: digital switching outputs (0 and 1)
7. A fixed bolt holes for easy installation
8. A small PCB board size: 3.2cm x 1.4cm
9. Using a wide voltage LM393 comparator

Uses:

1. Meter pulse data sampling
2. Fax paper shredders detection
3. Obstacle detection
4. Black and white line detection

Bread wire/breadboard wire cable breadboard adapter cable breadboard (1-2cm error may occur)
1LOT=65PCS
The total length of 65 test lines were:
24CM (including with needle part) 4
20CM (including with needle part) 4
16CM (including with needle part) 8
12CM (including with needle part) 44

Item Description:
3.3-5V Rain Raindrops Detection Sensor Weather Humidity Module For Arduino
Brand New
Feature:
1.The sensor USES the high quality FR - 04 double material, large area of 5.5 * 4.0CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance;
2.With potentiometer sensitivity adjustment;
3.The output format: digital switch output (0 and 1) and analog AO voltage output;
4.Has a fixed bolt hole, convenient installation;
5.The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA;
6.The LM393, use of wide voltage comparator;
7.The working voltage of 3.3 V to 5 V;
Size: Like the picture show

Usage:
- Connected to 5 v power supply power lights, no water droplets on induction plate, the DO output for the high level, switch lights out, a drop of water drops, the DO output for the low level, switch indicator,brush away the water droplets, return to again, the output high level state.
- AO analog output, can be connected to the microcontroller AD mouth drops of rainfall in the above size.
- DO TTL digital output can also be connected microcontroller detecting whether it will rain.

Package includes:
1 x Rain Sensor
1 x Rain Module
2 x Dupont Cables

Feature
Specifications:
Product Name: water level sensor
Operating voltage: DC3-5V
Operating current: less than 20mA
Sensor Type: Analog
Detection Area: 40mm x 16mm
Production process: FR4 double-sided HASL
Operating temperature: 10 -30
Humidity: 10% -90% non-condensing
Weight: 3.5g
Size: 62mm x 20mm x 8mm
Packing: static bag sealed

Description
1 This is a simple moisture sensor that can be used to detect the moisture in the soil. When the soil lacks water, the module outputs a high level, otherwise it outputs a low level. Use this sensor to make an automatic watering device, so that the plants in your garden do not need to be managed by humans.
2 Sensitivity is adjustable (the blue digital potentiometer is adjusted in the picture)
4 Working voltage 3.3V-5V
5 Module dual output mode, simple digital output, more accurate analog output.
6 Equipped with fixing bolt holes for easy installation
7 Small board PCB size: 3cm * 1.6cm
8 Power indicator (red) and digital switch output indicator (green)
9 The comparator uses the LM393 chip, which works stably
Two small board interface description (4-wire system)
1 VCC external 3.3V-5V
2 GND External GND
3 DO small board digital output interface (0 and 1)
4 AO small board analog output interface
Three instructions
1 The soil moisture module is sensitive to environmental humidity and is generally used to detect soil moisture.
2 When the soil moisture does not reach the set threshold, the DO port outputs high level. When the soil moisture exceeds the set threshold, module D0 outputs low level;
3 The small-board digital output D0 can be directly connected to the single-chip microcomputer, and the high and low levels are detected by the single-chip microcomputer, thereby detecting the soil moisture;
4 small board digital output DO can directly drive our relay module, buzzer module, etc., which can form a soil moisture alarm device;
5 The analog output AO of the small board can be connected with the AD module, through AD conversion, a more accurate value of soil moisture can be obtained

Product Description
Product features: type-C input, high accuracy of charging voltage.
Note: power off operation is required to adjust the charging voltage setting; the usb-a base on the back of the module needs to be welded by the user, and we will provide a female base with the product.
Basic parameters
Input voltage range: 5 ~ 5.5V
Charging cut-off voltage: (4.2v/4.35v) ± 0.5%
Charging current: 2.4a ± 5%
Boost output voltage: 5V ~ 5.15v (line loss compensation)
Boost output voltage ripple: 100mV
Boost output current: 2A
Boost conversion efficiency: 92.5% (3.6V input, 5v2a output)
Static current at battery end: < 30uA
Function introduction
When the load current is less than 50mA continuously, the output will be turned off.
It supports the external key, which is connected to the K point and the output negative pole. Short press to turn on the power display and turn on the 5V output. Two consecutive short presses will turn off the power display and turn off the 5V output.
When the charging current drops to 100mA after reaching the final floating charging voltage, the charging cycle will be automatically terminated.
When the battery voltage drops below 4.1V, the charging cycle starts again.
When the battery voltage is lower than 2.8V, the battery will be pre charged with a current of 180mA.
The usb-a base welding position is provided on the back of the product, which can be installed manually.
It supports discharging while charging.

Product Description
Note that the "source" here does not refer to the power source. It refers to the source of the shock.
The features of passive buzzer are:
1 There is no oscillator inside the passive, so if you use a DC signal, you can't make it sound. Must use 2K~5K square wave to drive it
2 The frequency of the sound is controllable, and it can produce the effect of "multiple mifa Solaxi".
3 In some special cases, a control port can be reused with LED
The features of active buzzer are:
1 The active buzzer has an internal oscillation source, so it will beep as long as it is powered on
2 The program control is convenient. The single-chip microcomputer can make a sound with a high and low level, but the passive buzzer can't.
Each set weighs about 6g
A module description
1 The module is driven by a 9012 transistor
2 Working voltage 3.3V-5V
6 Equipped with fixing bolt holes for easy installation
7 Small board PCB size: 3.3cm * 1.3cm
Two module interface description (3-wire system)
1 VCC External 3.3V-5V voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer)
2 GND External GND
3 I/O External MCU IO port

Product Description
Note that the "source" here does not refer to the power source. It refers to the source of the shock.
The features of passive buzzer are:
1 There is no oscillator inside the passive, so if you use a DC signal, you can't make it sound. Must use 2K~5K square wave to drive it
2 The frequency of the sound is controllable, and it can produce the effect of "multiple mifa Solaxi".
3 In some special cases, a control port can be reused with LED
The features of active buzzer are:
1 The active buzzer has an internal oscillation source, so it will beep as long as it is powered on
2 The program control is convenient. The single-chip microcomputer can make a sound with a high and low level, but the passive buzzer can't.
Each set weighs about 6g
A module description
1 The module is driven by a 9012 transistor
2 Working voltage 3.3V-5V
6 Equipped with fixing bolt holes for easy installation
7 Small board PCB size: 3.3cm * 1.3cm
Two module interface description (3-wire system)
1 VCC External 3.3V-5V voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer)
2 GND External GND
3 I/O External MCU IO port

Description
TP5100 is a double switch buck 8.4V, single cell 4. 2V lithium battery charge management chip. Its ultra-compact QFN16 package and simple external circuit, making TP5100 ideal for portable equipment so large current charging management applications.Meanwhile, TP5100 built-in input overcurrent, undervoltage protection, over temperature protection, short circuit protection, battery temperature monitoring, reverse battery protection.
TP5100 have 5V-18V wide input voltage, dual battery trickle charge into pre-charge, constant current, constant voltage three phase, pre-charge current trickle charge current through an external resistor adjustment, the maximum charge current up to 2A. TP5100 with a frequency of 400kHz switching mode makes it possible to use a smaller outer Suo device and the large current charging still maintain a smaller amount of heat.
TP51OO built-in power PMOSFET, anti-intrusion circuit, so no anti-intrusion protection and other external Schottky diode.

Features:

- Double 8.4v / 4.2v lithium rechargeable single
- Programmable charge current. 0. 1A-2A
- Programmable steady precharge current 10% -100% .
- Wide operating voltage, maximum reach I8V
- Red and green LED charge status indicator
- Chip temperature protection, overcurrent protection, undervoltage protection
- Battery temperature protection, reverse battery shutdown, short circuit protection
- Switching frequency 400Khz, usable inductance 20uH and more
- PWR_ON Power battery for switching control

Maximum Ratings:

- Static input supply voltage (VlN): 20V
- BAI: -8.4V-20V
- BAT Short-Circuit Duration: Continuous
- Operating environment Temperature range: -40 ° -85 °
- Storage temperature range: -65 ° - 125 °

Application:

- Portable equipment, various chargers
- Smartphone, PDA, mobile cellular telephone
- MP4, MP5 players, tablets
- HM
- Power Tools
- Walkie-talkie
Default shipping settings: 4.2V 2A. The board has with LED, and LED's external reserve position.
Size: 25 * 17 * 5mm ultra-small size
Input voltage: 5-18V DC power supply
Charge status: full and unloaded blue lights, charging red.

escription
Name: Dual USB output 3A step-down module
Input: 6V-40V
Output: 5V/3A (MAX)
Efficiency: 92% (MAX)
Switching frequency: 150KHZ
Working temperature: -40℃- 85℃
Size: L_59mm*W_21mm*H_17mm
Load capacity: maximum output 3A (two mobile phones can be carried at the same time)
Scope of application: USB5V powered devices such as mobile power supplies, mobile phones, tablets, etc.

Description
Infrared emission control, also known as infrared emitting diodes, diode class belongs. It can be directly converted into electrical energy near infrared
Light (black light), and can radiate out of the light emitting device is mainly used in various photoelectric switches and remote control transmitter circuit. Infrared emission control structure, principles and common light-emitting diodes are similar, but different semiconductor materials used. Typically use gallium arsenide infrared emitting diode (GaAs), gallium aluminum arsenic (GaAlAs) and other materials, the use of transparent or light blue, black resin package.
Firing distance, launch angle (15 degrees, 30 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees, 180 degrees), the light intensity emitted wavelength. The above physical parameters, need to understand its electrical performance parameters: the diameter of the common market, 3mm, 5mm for low-power infrared emission control, 8mm, 10mm for medium power and high-power launch tube. Forward voltage low-power transmitting tubes: 1.1-1.5V, current 20ma, the power of the forward voltage: 1.4-1.65V 50-100ma, high-power launch tubes for the forward voltage:. 1.5-1.9V200-350ma Yu Electronic make 1-10W power infrared emission control can be applied to infrared surveillance lighting.

Description:
Object is sensed output 0, output 1 is not sensitive to the time, directly with 3V and 5V microcontroller IO port connected.
Sensing distance 2-40 cm, distance, good anti-jamming capability. (Note: The infrared sensor can not detect all objects get the same distance, objects of different colors of light reflectance of different objects closer darker black shorter distance detected, the sensor 2-40 cm is measured against the white wall of)
Speed, suitable for smart car obstacle avoidance, black and white line tracking, anti-drop, product counters, cutting lines, liquid level detection.
This sensor is made with black and white lines tracing the car ran without black line on white paper, available in concrete The yellow complex environment such as the black line patrol track. As long as the black line around the slightly lighter color than black can, eliminating the traditional moves, so that environmental layout easier.
The sensor 3 to 6V supply, wide range, suitable for 3V and 5V MCU system.
With Enable, EN terminal is equal to "1" when the sensor does not work, equal to "0" when working. Jump on the sensor end cap long after the EN grounding plug (EN long as "0"). To use the EN pin when the jumper cap is removed.
Frequency adjustment potentiometer is used to adjust the carrier frequency of the infrared emission tube, because the integration receiver 38KHZ in particular when the carrier frequency is the most sensitive. The 502 resistor clockwise transferred do (that is, the launch tube at maximum brightness), and then at a white wall tone 103 resistance, has been transferred to the sensing distance is the farthest so far so that the sensor will work in the best state

Working voltage: DC 3.3V-5V
Working current: 20mA
Working temperature: -10degree 50degree
Detection distance : 2-40cm
IO interface: 4 line (-/ /S/EN)
Output signal: TTL Level
Adjusting mode: Multi resistance regulation
Effective angle: 35°
Size: 4.5x1.1cm(approx)

Here we use the obstacle avoidance module and digital 13 interface with LED to build a simple circuit, making the obstacle avoidance warning light, accessing the avoidance sensor to digital 3 interface, when the obstacle avoidance sensor senses the signal, LED light, otherwise off.
Program code:
int Led=13;//define LED interface
int buttonpin=3; //define obstacle avoidance interface
int val;//define Digital variable val
void setup()
pinMode(Led,OUTPUT);//define LED is output interface
pinMode(buttonpin,INPUT);//define obstacle avoidance is output interface
void loop()
val=digitalRead(buttonpin);//reading the value from 3 digital interface to val
if(val==HIGH)//when the obstacle avoidance sensor senses the signal, LED flash
digitalWrite(Led,HIGH);
else
digitalWrite(Led,LOW);
Package Include:
1 X KY-032 Obstacle Avoidance Sensor Module

0.91 inch OLED
Driver chip SSD1306
Support interface I2C
Resolution 128×32
Display size 0.91 inch
Display color: white/blue
Dimensions
38.0×12.0×2.60 (mm)
Display area 22.384×5.58 (mm)
Dot spacing 0.175×0.175 (mm)
Point size 0.159×0.159 (mm)
Number of pins 4 pins (the product defaults to solder pins, no need to contact customer service with solder pins)
Perspective full perspective
Working temperature -40℃~80℃
Storage temperature -40℃~80℃
Working voltage 3.3V
1.GND: Ground of Logic Circuit
2.VCC: Power Supply for Logic
3.SCK: Serial clock input
4.SDA: Serial data inpu

Features:
1. Use with D1 MINI
2. Arduino compatible, use Arduino IDE for programming
3.11XI/O pin
4.1XADC pin (input 0-3.3V)
5. Support OTA online

Copy the link of the Baidu network disk to download the webpage: http://pan.baidu.com/s/1hrTChYO


Delivery list (packed in electrostatic bag):
1. Long female row X2PCS
2. Short header X2PCS
3. Ordinary pin header X2PCS
4.1-way relay module (FOR D1-MINI) X1PCS
Shipping list:
1.Long female pins x2pcs
2.Short female pins x2pcs
3.Normal pins x2pcs
4. RELAY Shield x1pcs
Pin definition (relay module VCC and GND are connected to D1 MINI main board, and the occupied data IO port is D1)

Product description
dimming principle is to use the principle of two modules brightness changes for pwm.
Mercury switches provide a digital signal that triggers the PWM , through the program design,
We can see the light like two cups filled with the effect of shuffling back and forth.
test code:
int LedPinA = 5;
int LedPinB = 6;
int ButtonPinA = 7;
int ButtonPinB = 4;
int buttonStateA = 0;
int buttonStateB = 0;
int brightness = 0;
void setup()
pinMode(LedPinA, OUTPUT);
pinMode(LedPinB, OUTPUT);
pinMode(ButtonPinA, INPUT);
pinMode(ButtonPinB, INPUT);
void loop()
buttonStateA = digitalRead(ButtonPinA);
if (buttonStateA == HIGH && brightness != 255)
brightness ;
buttonStateB = digitalRead(ButtonPinB);
if (buttonStateB == HIGH && brightness != 0)
brighness --;
analogWrite(LedPinA, brightness); //
analogWrite(LedPinB, 255 - brightness); //
delay(25);

Feature:
100% brand new and high quality.
For PS2 joystick joysticks standard interface module electronic building blocks and 2.54mm pin interface leads.
Phillips is a two-way rocker 10K resistor, with the joystick in a different direction, tap the resistance vary. This module uses a 5V supply, the original state X, Y readout voltage of 2.5V or so, when pressed with the direction of the arrow, the readout voltage values with increasing, up to 5V; press the arrow in the opposite direction, the readout voltage reduction , a minimum of 0V.
Specification:
Net Weight:11g
Weight:21g
Color:Black
Size:34.5*26*38mm
Package includes:
1*JoyStick Breakout Module

Introduction
RS232 to TTL module
The products are widely used in radio modification, cell phones Brush, 360 Brush, GPS, vehicle inspection, DVD Brush, hard disk repair, set-top box upgrades.
Can be used to program the microcontroller type:
STC microcontroller
STM32 MCU
NEC MCU
Communications chip: Domestic MAX3232
Operating voltage: 3.3V-5.5V
Interface: TX RX VCC GND
Note: Domestic max3232 chip chip, there are some buyers purchase found no compatibility problems, please confirm before buyers to purchase the chip compatible with your system, to avoid buying the wrong, thank you!
Buyer issue summary (we will buyers case problems are listed after the purchase, the buyer for future reference, we believe that the case of failure is greater than the benefits of successful cases buyers):
A Lenovo notebook Serial small plate (max3232) usb to serial cable (340 drivers) Download stc89c52 not use; desktop Serial small plates (max3232) usb to serial cable (340 drivers)
Download stc89c52 normal use; max3232 chip will replace max232 laptop Serial small plates (max232) usb to serial cable (340 drivers) can normally download download stc89c52
Initially concluded: After max3232 through usb to serial cable, may have incompatibilities with certain notebooks. Buyers encountered a similar situation, you can select the appropriate serial chip based on the above test results.
2 2440 development board max3232 small plate Operating voltage 3.3v serial communications found is not normal, the voltage rises to 3.8v will work properly.
We only guarantee the module can be used for serial communication, does not provide guidance related to Brush! Does not provide technical support, do not have any information!

Features:
1. Use with D1 MINI
2.11XI/O pin
3.1XADC pin (input 0-3.3V)
4. Support OTA online

Product Usage:
1, the meter pulse data sampling
2, fax machine shredder paper detection
3, obstacle detection
4, black and white line detection
product description:
1, using TCRT5000 infrared reflection sensor
2. Detection reflection distance: 1mm~25mm
3, working voltage: 5V
4, the output form: digital signal (0 and 1)
5, with fixed bolt holes for easy installation
6, small board PCB size: 3.5cm x 1cm
7,Build-in TCRT5000 Sensor NSOR
8,Applicable to a variety of platforms including for Arduino / AVR / ARM /PIC
Features:
The infrared emitting diode of the TCRT5000 sensor continuously emits infrared rays. When the emitted infrared rays are not reflected back or reflected back but the intensity is not large enough, the infrared receiving tube is always in the off state, and the output end of the module is low level, indicating The diode is always off; when the detected object appears in the detection range, the infrared light is reflected back and the intensity is large enough, and the infrared receiving tube is saturated. At this time, the output end of the module is high, indicating that the diode is illuminated.
Wiring:
1. VCC: Connect the positive pole of the power supply (5V)
2, GND: connected to the negative power supply
3, OUT: high / low level switching signal (digital signal 0 and 1）

Description
Model/Name: LM2596S DC-DC step-down module
Input voltage: 3.2V~40V
Output voltage: 1.25V~35V
Output current: 3A (maximum)
Conversion efficiency: 92% (maximum)
Output ripple: <30mV
Switching frequency: 65KHz
Working temperature: -45℃~ 85℃
Size: 43mm * 21mm * 14mm (length * width * height)
IN input positive IN- input negative!
OUT output positive OUT- output negative
Input voltage range: DC 3.2V to 40V (The input voltage needs to be 1.5V higher than the output voltage. It cannot be boosted)
Output voltage range: DC 1.25V to 35V continuously adjustable voltage, high efficiency (maximum 92% ), the maximum output current is 3A.
Measured 12V input, 5V output current 1A load regulation rate is less than 1%
Note: This is a step-down module, and the input voltage needs to be higher than the output voltage.
If the output current is greater than 2.5A (or the output power is greater than 10W), please add a heat sink to work for a long time.

Product description
The grayscale sensor is an analog sensor. It can be used in combination with the arduino sensor expansion board v5.0 to sense the different colors of the ground or the desktop and generate corresponding signals. It can realize interactive works related to color, and can also be used as a tour of the patrol car. Grayscale recognition of the field sensor or soccer robot. The power supply needs to be the same as the controller, usually 3.3V or 5V.
Specifications
Working voltage: 3.3V or 5V
Working current : < 20mA
Operating temperature range: -10 ° C ~ 70 ° C
Detection resolution: 10%
Interface type: analog signal output
Size: 24mm x 21mm
Weight: 3g
Interface definition
S：Signal output
：Power supply (VCC)
-：Ground (GND)
Instructions
working principle
The gradation sensor comprises a white high-brightness light-emitting diode and a photoresistor. Since the light returned by the light-emitting diode on different gradation papers is different, the photoresistor receives the returned light, and the photoresistor is different according to the intensity of the light. The resistance values are also different, thereby realizing the test of the gray value.
Programming principle
The gray level sensor has three pins, which are the power supply positive Vcc, the power supply ground GND, and the signal end S. In actual use, the sensor can be directly connected to the analog interface of the arduino controller, for example, the analog port A0, after the arduino is powered on, The sensor white highlight LED lights up, the sensor button is placed on different gray paper, the data is read by the AD conversion of the arduino controller, and then the measured analog quantity is printed through the serial port.
Connection diagram
The S port is connected to the analog input pin of the controller. Connect 5V and GND to the 5V and GND of the power supply, respectively.

Sample program
Connect the grayscale sensor to the arduino controller according to the program and observe the value of the serial port output under different gray values.

Product Description
Vibroswitch sensor
Working Voltage: 3~5V
Application All kinds of electronic products
Can be connected directly to the microcontroller output IO port
Anti-interference ability
The standard 2.54mm pin to do input and output connections
Works with Official Boards
With fixed bolt hole for easy installation
Application: Great for DIY project
Material: PCB Brass
Dimensions: 29 x 16 x 8 mm / 1.14 x 0.63 x 0.31 inch
Color: Black

Product Description
This module uses 24-bit high-precision A/D conversion chip hx711. It is specially designed for high-precision electronic scales, with two analog input channels and an internal integrated 128 times programmable gain amplifier. The input circuit can be configured to provide a bridge pressure bridge (such as pressure, load cell mode), with high accuracy and low cost, and is an ideal sampling front-end module.
Features:
*Two optional differential input channels
*On-chip active low-noise PGA with optional gains of 32, 64 and 128
*On-chip power regulator is used for load cell and ADC analog power supply
*On-chip oscillator requires no external components with optional external crystal
*On-chip power-on reset
*Simple digital control and serial interface: pin drive control, no programming required
*Choose 10SPS or 80SPS output data rate
*Simultaneous 50 and 60Hz power supply suppression
*Current consumption, included in-chip analog power supply voltage regulation: normal operation <1.5mA, power down <1uA
*Working power supply voltage range: 2.6 ~ 5.5V
*Working temperature range: -40 ~ 85°

Uses:
Various flame, fire detection
Module Features:
One can detect a flame or in a 760 nanometer wavelength of ~ 1100 nm range of the light, lighter flame test distance of 80cm, for the greater flame, the farther the distance test
2, the detection angle of 60 degrees or so, particularly sensitive to the flame spectrum
3, sensitivity adjustable (shown in blue digital potentiometer adjustment)
4, the comparator output signal clean, good waveform, driving ability, more than 15mA
5, with adjustable precision potentiometer sensitivity adjustment
6, the working voltage of 3.3V-5V
7, the output format: digital switching outputs (0 and 1)
8, a fixed bolt holes for easy installation
9, small plates PCB Size: 3.2cm x 1.4cm
10, using a wide voltage LM393 comparator
Module for use:
1, the flame sensor flame most sensitive to ordinary light is also a rection, generally used as a flame alarm purposes.
2, a small plate output interface can be directly connected to the microcontroller IO port
3, with the flame sensor to maintain a certain distance, so as not to damage the sensor temperature, the flame of a lighter test distance 80cm, for the greater flame, the farther the distance test

Product parameters:
1. Ultra-micro volume: 23*24MM weight 0.45g
2. Excellent noise suppression, when the input audio is not connected, no noise can be heard when the ear is close to the speaker
3. Two-channel stereo, 5V power supply can output 5W 5W power, can directly drive 4Ω, 8Ω small speakers, with high output power, sufficient energy, good sound quality, with left and right channel volume adjustment.
4. The unique Class D digital power amplifier board without LC filter can be directly powered by the computer's USB.
5. Double-panel wiring, properly solve the ground potential balance and crosstalk between channels caused by wiring
6. Ultra-micro design, it can be easily placed in the small internal space of various digital products, and the magnification efficiency is super high.
7. All machines are used for the whole board welding, and the welding quality is comparable to non-manual iron welding!
8. The rated working voltage is 2.5-5V, and the ultimate working voltage is 5.5V.
Note: The "negative" of the left and right channel output terminals cannot be connected together, otherwise the IC will be burned, and the speaker (load) should be connected before power on.

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

Description
1. On-board high-precision voltage detection chip and power supply regulator chip
2. Onboard 4-digit power indicator LED lights, displayed in 3 colors, red, yellow, yellow, and green represent 20% , 50% , 80% , and 100% power respectively
3. Reserve a battery detection interface and two installation positioning holes
4. PCB size: 22.2(mm)x17.2(mm)

Feature:
Onboard two the L9110S motor control chip
the module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
the 800mA continuous current output capability per channel
Low static work current
Each channel has 800mA continuous current output
Low saturation pressure drop
TTL/CMOS output level compatible, can be connected directly to the CPU
Output built-in clamping diode, apply to the perceptual load
Control and drive integrate in IC
Have pin high pressure protection function
Specifications:
Working temperature: 0-80 °
Size:29.2(mm)x23(mm)
the module input voltage :2.5-12V
Power supply voltage: DC2.5-12V
Package includes:
1x L9110S H-bridge Stepper Motor Dual DC motor Driver Controller Board

Description
1. Onboard pop-up SD card interface 2. Onboard LDO power chip with AMS1117-3.3 3. Double-row pin interface design, convenient for users to connect when doing experiments 4. Size: 48(mm)x31(mm)

Product description
1, imported normally open reed switch
2, the comparator output, the signal is clean, the waveform, driving ability, more than 15mA.
3, operating voltage 3.3V-5V
4, the output in the form: Digital switching outputs (0 and 1)
5, a fixed bolt hole for easy installation
6 small board PCB size: 3.2cm x 1.4cm
7, wide voltage LM393 comparator
Reed switch is an abbreviation of the dry reed contacts a passive electronic switching elements, and has the advantages of simple structure, small size and ease of control, its shell is a sealed glass tube, the tubes are installed two iron elastic reed plate, but also filling called rhodium metal inert gas. In peacetime, the glass tube in the two reeds is made of special materials are separated. When a magnetic substance close to the glass tube, in the role of the magnetic field lines, the pipe within the two reeds are magnetized to attract each other in contact, the reed will suck together, so that the junction point of the connected circuit communication. After the disappearance of the outer magnetic reed because of their flexibility and separate, the line is disconnected. Therefore, as a use of the magnetic field signals to control the line switching device, reed tube can be used as a sensor for counting the number, spacing, etc. (in the security system is mainly used for production of Menci, magnetic window), and also are widely used in a variety of communication devices. In practical use, usually with a permanent magnet control two metal sheet is turned or not

Features:
Model Number: Micro SD Shield
Install Style: Plug-in
Package Included:
1 x Micro SD Shield

Product parameters:
Size: 33.4 * 25.6MM
Voltage: 3.3V, 5V
Port: the digital quantity level
The output load voltage: 0 to 24V
The output load current: < 5A (more than 1A need to add heat sink)
Platform: the MCU, ARM, raspberry pi
The product features:
Using original IRF520 power MOS tube, can adjust PWM output
Can let the drive up to 24 v load, such as LED lights belt, dc motor, micro pump, solenoid valve
By PWM adjustable can realize stepless dimming LED, motor stepless speed regulation
The product instructions:
PWM signal for high level effectively
When the PWM for high level (3.3 V to 3.3 V) :
As the power supply voltage, between V and V - working indicator, work load
When the PWM is low level (0 V to 0.5 V) :
V and V - between 0, work lights out, don't work load

Description
This is the I/O extended module, which use for I2C interface, you can use two of the module to extend 8 I/O.
Support cascading, and you can use at most 8 modules to extend 64 I/O at the same time.
Can be changed the address by set toggle switch
PCB Size: 36 x 16mm/1.41*0.62"
Every 2 seconds, make P0-P7 port output High level, Low level, and put 3 toggle switches to ON, the address of module is 0x27

Package Included:
1 x PCF8574T I/O Fr I2C Port Interface Support Cascading Extended Module

Product Description
Power supply voltage :5V
Working environment :-25~ 85℃
Storage temperature :-30~ 100 ℃
Port: Digital quantity level
Platform :Arduino, SCM
Purpose: It can be used for robot collision detection, contact collision detection, etc

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g

Module parameters:
As electronics enthusiasts , you are not 'll find a 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply and tangled, is not the will to power is not enough to expand the number of interfaces and distress ? Such experience , I believe that people will engage in electronic design often encountered . To facilitate that we can find a safe high performance , ease of use , power regulator rich expansion interface module , shop designed in such a transfer 1.2V 1.5V 1.8V 2.5V 3.3V 5V power regulator module, which applies to single-chip design project requires 1.2V 1.5V 1.8V 2.5V 3.3V 5V power supply electronic equipment. Meanwhile , some of the electrons can be designed to facilitate the expansion of power .
1 Input : DC 4.5V--12V ( input voltage must be higher than the output voltage to 1V or more. )
2 Output : 1.2V 1.5V 1.8V 2.5V 3.3V 5V, ( load current must not exceed 800ma)
3 pairs of panel design, layout nice ;
4 specially designed two pin mounting holes , can be directly fixed on hole board for extended experiments ;
5 input and output using 2P single row pin for easy connection ;
6 PCB board size : 26*16mm
7 with power indicator light ( red )
8 tablet weight about : 1.6g