Kereskedelmi, irodai és ipari

High Accuracy Temperature Sensor MCP9808 I2C Breakout Board Module 2.7V-5V Logic Voltage for Ardunio in Stock

 
You can DIY on this shield.
Packing List:
 
 
 
1 x Broad

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
GY-273 3V-5V QMC5833L Triple Axis Compass Magnetometer Sensor Module For Hot Worldwide
 
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Module description:
1 RS422 interface, two-way communication. B Y Z A ultra far transmission 1000 meters
The 2 module has ESD 15KV protection.
3 on board to increase the limit of 10 ohm current limiting current protection.
4 module with TVS diode. Anti lightning, peak voltage.
The 5 module has 120 ohm termination resistors, which can effectively reduce the interference of long range communication.
6 have the power indicator light and the data receiving and sending indicator light. Panoramic view of state data.
7 module TTL side using 5V DC power supply TXD RXD compatible with 5V logic signal.
8 module uses the original imported MAX490 chips, stability and communication speed is far more than domestic products, up to 2.5MBPS.
9 module size: 5.0cm*2.7cm
 
 
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Frequency range (MHz) : 800 MHz, 900 MHz, 1200 MHz, 1500 MHz, 1800 MHz to 1900 MHz
 
The gain (dBi) : 7
 
Standing wave ratio: 1.5 or less
 
Input impedance (Ω) : 50
 
Power capacity (W) : 100
 
The antenna height (mm) : 270
 
The length of the feeder (m) : 3
 
Feeder type: RG174
 
Joint type: SMA male head (screw with needle)
 
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Frequency range (MHz) : 800 MHz, 900 MHz, 1200 MHz, 1500 MHz, 1800 MHz to 1900 MHz
 
The gain (dBi) : 7
 
Standing wave ratio: 1.5 or less
 
Input impedance (Ω) : 50
 
Power capacity (W) : 100
 
The antenna height (mm) : 270
 
The length of the feeder (m) : 3
 
Feeder type: RG174
 
Joint type: SMA male head (screw with needle)
 
 
 

4S 30A 14.8V Li-ion Lithium 18650 Battery BMS Packs PCB Protection Board Balance Integrated Circuits 45x56mm Electronic Board
 

 
 
 
 
 
 
 
 
 
 
 
Description:
A single module can drive an 8 * 8 common cathode lattice
Module Operating voltage: 5V.
Module size: 5 cm long X 3.2 cm wide X 1.5 cm high
With four screws hole, aperture 3mm, by using our M3 Tongzhu fixed
Module with input and output interfaces, supports multiple modules cascade
Wiring instructions:1.The module left as an input port to the output port on the right. 2.The control of a single module, simply input port to the CPU 3.Multiple modules cascade input termination CPU, 2 output termination module, a module of the input of the input terminal, the output terminal of the first two modules of the first three modules, and so on ... 51 MCU, for example:
VCC 5V
GND GND
DIN P22
CS P21
CLK P20
 
Package includes
1pc X Led Module
5pc X Dupont line
 

Please take this product after confirming that it will be used.

Serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.
HC-05 has be designed Master or Slave when the factory, user couldn\\\\\\\'t change the role
 
Spec
 
Bluetooth protocal: Bluetooth Specification v2.0 EDR
Frequency: 2.4GHz ISM band
Modulation: GFSK(Gaussian Frequency Shift Keying)
Emission power: ≤4dBm, Class 2
Sensitivity: ≤-84dBm at 0.1% BER
Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps
Security: Authentication and encryption
Profiles: Bluetooth serial port
 
Power supply: 3.3VDC 50mA
Working temperature: -20 ~ 75 Centigrade
Dimension: 26.9mm x 13mm x 2.2 mm
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

5 channel Infrared Reflective Sensor TCRT5000 KIT 5 way/road IR Photoelectric Switch Barrier Line Track Module
 
 

24 Button LED Light Controller Wireless RGB Ir Remote 12v Dimmer for 5050 3528
 

ESP-12E motor drive expansion board
 
Description:
 
Based on the first motor-driven expansion board ESP-12E development.
 
Features:
 
l ESP12 DEV KIT development board expansion module;
 
l lead ESP12 DEV KIT All-function pins: SPI, UART, GPIO, AI and 3.3V power connector;
 
l expand two-way motor-driven, two-way direct drive motor;
 
l onboard power switch;
 
l L293D
 
l Motor power range: 4.5V ~ 36V;
 
l Control power range: 4.5V ~ 9V;
 
l Motor power, control power separation; In the experiment, by short-circuiting block the merger, the VIN and VM short, while power supply to the motor and the control board.
 
Technical Specifications
 
Power input:
 
- Motor Power (VM): 4.5V ~ 36V, can be a separate power supply;
 
~ Control power (VIN): 4.5V ~ 9V (10VMAX), can be powered separately;
 
~ Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) simultaneously drive and control the motor;
 
Logic Operating current Iss: 60mA (Vi = L), 22mA (Vi = H);
 
 
 
 
 
Drive part of the work current Io: 1.2A;
 
Maximum power dissipation: 4W (T = 90 )
 
Control signal input level: High: 2.3VVIHVIN; Low: -0.3VVIL1.5V
 
Working temperature: -25  ~ 125 
 
Drive Type: Dual high-power H-bridge driver
 
ESP12E Dev Kit Control Port: D1, D3 (A motor); D2, D4 (B motor)
 
Module Weight: about 20g
Precautions
 
When l insert ESP-12E module, please note the direction consistent with an expansion board antenna;
 
l use of short modules that can simultaneously control board and motor.

 
 
Weight:28 g
Color: as picture show
Size:75mmx48mm/2.95"x1.89"(inch) (approx)
The rated voltage: DC12V
Voltage range: DC7.0 V-13.6 V
The input power: 0.24 A
The rated speed: 9500 R.P.M
Temperature range:-10.. 70 ° C
Txpect life: 25 ° C L10 when expected life 50000 hours
Bearing structure: free maintenance dual ball bearings
Rotation direction: the wind from stents place eduction, facing the rotor counter-clockwise
The wiring way: red-black signal: blue (blue line, the alarm line speed, it is necessary to pay attention to). Line about 20 cm long
The biggest air volume: 26.8 m? / h
The electric motor protection : overload protection, wrong level protection and stall lock current protection
Minimum wind pressure : 0.. 120 Pa
Noise index : 41.9 dB (A)
Material qualitative material: glass fiber reinforced plastic, PBT shell, PA blades
Function explain : electronic reversing the rotor dc fans, complete electronic directional control components
Including the following resources:
1. 8 key
2. 8 LED common cathode
3. 8 a digital tube common cathode
Use TM1638 digital tube drive chip to drive common cathode LED digital tube
How to connect:
VCC GND 5V power supply, STB CLK DIO MCU I/O port
This module for the chip TM1638, set the above three kinds of single chip microcomputer common peripheral circuit, the biggest characteristic is to simply take microcontroller three IO mouth can drive, scanning display and key scan don't need microcontroller intervention, only need to register to display data related to reading and writing or testing buttons, save MCU resources. Buy the module provides an example program.
Wiring methods :
VCC GND connected 5V supply, STB CLK DIO connected microcontroller IO port.
 
Package Included:
1 x 8-Bit LED 8-Bit Digital Tube 8 KeyS TM1638 Display module for AVR For Arduin ARM
 
 
 
 

 
 
 
Weight:28 g
Color: as picture show
Size:75mmx48mm/2.95"x1.89"(inch) (approx)
The rated voltage: DC12V
Voltage range: DC7.0 V-13.6 V
The input power: 0.24 A
The rated speed: 9500 R.P.M
Temperature range:-10.. 70 ° C
Txpect life: 25 ° C L10 when expected life 50000 hours
Bearing structure: free maintenance dual ball bearings
Rotation direction: the wind from stents place eduction, facing the rotor counter-clockwise
The wiring way: red-black signal: blue (blue line, the alarm line speed, it is necessary to pay attention to). Line about 20 cm long
The biggest air volume: 26.8 m? / h
The electric motor protection : overload protection, wrong level protection and stall lock current protection
Minimum wind pressure : 0.. 120 Pa
Noise index : 41.9 dB (A)
Material qualitative material: glass fiber reinforced plastic, PBT shell, PA blades
Function explain : electronic reversing the rotor dc fans, complete electronic directional control components
Including the following resources:
1. 8 key
2. 8 LED common cathode
3. 8 a digital tube common cathode
Use TM1638 digital tube drive chip to drive common cathode LED digital tube
How to connect:
VCC GND 5V power supply, STB CLK DIO MCU I/O port
This module for the chip TM1638, set the above three kinds of single chip microcomputer common peripheral circuit, the biggest characteristic is to simply take microcontroller three IO mouth can drive, scanning display and key scan don't need microcontroller intervention, only need to register to display data related to reading and writing or testing buttons, save MCU resources. Buy the module provides an example program.
Wiring methods :
VCC GND connected 5V supply, STB CLK DIO connected microcontroller IO port.
 
Package Included:
1 x 8-Bit LED 8-Bit Digital Tube 8 KeyS TM1638 Display module for AVR For ARM
 

 
Introduction
1. The power supply:  12V
2. Module size:   52.8mm x 32mm x 18mm
3. According to the board of the key, or an external button to make the relay module to attract or disconnect, click on the pull, and then press the button to disconnect, low level trigger.  Power on again when the relay is in off state.
4.The secondary output end of the relay to withstand the maximum current is 10A, that is the maximum working current cannot be accused of a circuit or device is greater than 10A, according to their own needs to be connected to the normally open or normally closed terminal.
5. Reserved external pull lights welding position, and the board has good welding the attraction indication lamp.
 
 
 
 

ESP8266 ESP-01 ESP-01S DS18B20 Temperature Humidity Sensor Module esp8266 Wifi NodeMCU Smart Home IOT DIY Kit
 
 

1. Description:
This product is a stereo Bluetooth amplifier module. The Bluetooth version is 4.2.
 
2. Features:
1>. The version is 4.2. It can be compatible with all mobile phones and Bluetooth adapters on the market.
      2>. The distance is 15 meters in open space.
      3>. It supports automatically connecting devices that have been paired and playing music automatically.
      4>. F class power amplifier 5W 5W, high power output, over 8002 sound quality.
      5>. It supports USB sound card, no drive, plug and play.
      6>. Good sound quality, suitable for upgrading and refitting the idle sound box and DIY production.
 
3. Instructions:
      1>. Support USB sound card, free drive, plug and play (normal lithium battery power supply situation).
      2>. This product has dual 5W power amplifier circuit. It can not be used in addition to the power amplifier. The output of two amplifiers can not be connected in parallel or connected to the negative electrode, otherwise the power amplifier chip will be damaged.
      3>. There are two 2-8 European and 3-10W speakers respectively, and 3 European 5W and 4 European 10W horn are used. The output is stereo.
      4>. Maximum working current is 5V 2A, using 5V 2A or more voltage power supply, sound quality will be better.
      5>.It is suggested that a 3.7-5V lithium battery (the lithium battery needs a protective plate! It can charge a lithium battery with a USB rechargeable battery, and the USB port can not be used as a power supply port.) or a 5V adapter be used for power supply. It can not use voltage and current unstable power supply, such as dry battery, portable charger, multi-function transformer and so on.
      6>. When the Bluetooth board is installed, the antenna should not be close to the metal parts so as not to affect the transmission distance.
 
4. Operation:
      Start the cell phone Bluetooth, scan the device, find the "DW-CT14 " to click connection.
 
5. Note:
The charging interface of this product is a current limiting charging mode without charge management. For your safety, be sure to use a regular lithium-ion battery with a protective plate, which can cause loss due to improper use.
 
6. Package list:
Main board plug line
 

DC 12V Rain Weather Module Raindrops DetectionSensor Moduel
Humidity For
 
 
 
 
 
 

 
 
Description
1) master IC: STM8S103F3P6.
2) Support SWIM debug mode.
3) USB MINI interface or 2.54 Pin to take power.
 
 
 
 
 

GY-291  ADXL345 digital three-axis acceleration of gravity tilt module IIC / SPI transmission

JQ8900-16P MCU serial port control MP3 module For massage chairs
characteristic
1.7 IO Ports Trigger Control
2.Single-chip serial port control
3.Come with 4M memory,Sound can be copy with USB
4.Inner 3W amplified
5.Full set of development materials, providing technical support
It widely used:
game basketball machine sound effect voice broadcasting, treadmill voice navigation, massage chair voice operation guidelines, equipment fault prompts, equipment operation guidance voice, vehicle safety voice warning, public place voice prompts, business hall warm voice prompts, etc.
Hardware parameter
1.MP3 file format
A.Support all bit rates 11172-3 and ISO13813-3 layer3 audio decoding
B.2,Supports sample rate (KHz):8/11.025/12/16/22.05/24/32/44.1/48
C.3,Support these sound effects: Normal,Jazz,Classic,Pop,Rock
2.USB port
2.0(standard)
3.UART port
Standard serial port, TTL level
4.Input voltage
DC3.3-5.2V; IO level 3.3V
5.Rated current
Standby current: 500uA; working current: 10MA
6.Size
20.32*15.5mm
7.Work temperature
-40℃~85℃
8.Humidity
5% ~95%

This tuning version of passive tuning board, the main function of the input audio signal for high and low frequency adjustment, and then sent to the amplifier board to enlarge.
The principle of the product is that the audio signal is directly filtered through the RC filter to get the desired high and low sound through the RC capacitor. The tone board does not need power supply, but the volume after processing will be much smaller.
 
Parameters
 
Product Name: Passive tone board
Adjustable items: total volume treble bass
Number of channels: 2-channel
Knob spacing: 22.5mm
Socket type: XH2.54 - 3P
Appearance size: 56*28mm
Weight：24.5g
 

VL53L0X Time-of-Flight (ToF) Laser Ranging Sensor Breakout 940nm GY-VL53L0XV2 Laser Distance Module I2C IIC
 
 

 
12 Key Membrane Switch Keypad 4 x 3 Matrix Array Matrix keyboard membrane switch keypad

 
4x4 Matrix Keyboard Keypad Module Use Key PIC AVR Stamp Sml 4 * 4 Plastic Keys Switch    
 
 

 
The power amplifier circuit board designed using the official standard, the chip uses a selection of US imports original Longding micro Class D amplifier chip. Good product chip is necessary and the majority of music lovers to share, this is our consistent philosophy! The amplifier with ultra-high efficiency, large power, in the case of 12V power supply can output 10W 10W of power, the chip without fins, but also with overheating, over-current protection function, the function can be said to be very powerful.
 
The amplifier board is still difficult to drive two 15W speakers, high efficiency Class D amplifier board pure is not blown out, the most suitable for small rooms listening to music use.
You need to use a large heat sink when using Spike TDA2030 amplifier chip board, TDA2030 (15W 15W) This traditional 15W amplifier board to drive two speakers, and high-efficiency Class D PAM8410 pure amplifier board need only drive two 15W speakers Use a small heat sink, high efficiency super power, the sound quality is great.
 
Modification:
 
1. Analog Microelectronics America's original PAM8610 chip as amplifier chip, power can reach 10W 10W.
 
2. As pure class D amplifier board power requirements is relatively high, the exclusive use of the power amplifier board enthusiast 2200UF capacitor filter, the elimination of exchange voice, without interference, pure sound quality.
 
3. Using automatic placement machine production, the board is more beautiful.
 
4. Strip 5.5X2.5 standard power outlet, power input is very convenient. (Positive outside and negative inside)
 
Recently found to have bad business to buy this product to copy, workmanship, PCB design, and capacitor materials are not as ours, we have absolute import original IC, coupled with excellent PCB design and machine placement soldering, stable and reliable performance.
Pure Class D chip without fins can open detonation music, and now we have to chip plus a heat sink, you do not have to worry about overheating. !
 
Overview:
When the power supply voltage of DC 8V-12V, PAM8610 be able to 4Ω load 10W 10W output power, high-quality sound.
 
 
Technical Parameters:
Power: typically 10W
Voltage: DC DC8V-12V
Can drive speakers: 10W-15W, 4 -8 Euro Euro
 
Built-in power-impact sound canceling circuit, no power on impact sound
 
 
Physical picture:
 
 
 
 Compact board, 3.5MM stereo audio input interface, audio input with a standard easy. With fully enclosed volume control potentiometer, can be arbitrary adjust the volume, use and installation are very flexible and convenient
 
 
 
Use American Power Analog Microelectronics original PAM8610 pure Class D amplifier chip as the power amplifier IC, the maximum it can provide to 10W 10W of power, incredible sound.
 
PCB component placement tidy line with US FCC standards, all using genuine components using devices capable of long-term stability.
 
 
Heart-highlight fine arts star Electronic Manufacturing insist that only new element was the market mature products, please rest assured purchase.
 
 
 
 
 
Use enthusiast 2200UF capacitor, ensure pure sound quality.
 
Board size: Long 40mmX (excluding protruding parts of the volume potentiometer, etc.) wide by 19 40mmX
 
 
 
 
 
 
 
 Subjective sound experience:
 
     PAM8610 (10W) power to the PAM8406 (6W) bigger, more powerful speaker can drive, found this amplifier board can drive two 25W speakers.
Listen really surprised, it is hard to believe that such a small piece of the chip can be issued so great volume, stereo effect is very good, indicating a high degree of chip channel separation. Case of playing music, the performance was better than expected, chip minimal heat, the sound was amazing, more transparent treble, bass, or a certain amount, quality count in a small amplifier board in the upper level, listen to music from a very comfortable .
 
 
-------------------------------------------------- --------------------------------------------------
 
Precautions:
1: Power supply voltage can not exceed 12V
2: 4 speaker wire connection is completely independent, does not allow total access!
 
Just one of the cases appear immediately burn IC

 
The power amplifier circuit board designed using the official standard, the chip uses a selection of US imports original Longding micro Class D amplifier chip. Good product chip is necessary and the majority of music lovers to share, this is our consistent philosophy! The amplifier with ultra-high efficiency, large power, in the case of 12V power supply can output 10W 10W of power, the chip without fins, but also with overheating, over-current protection function, the function can be said to be very powerful.
 
The amplifier board is still difficult to drive two 15W speakers, high efficiency Class D amplifier board pure is not blown out, the most suitable for small rooms listening to music use.
You need to use a large heat sink when using Spike TDA2030 amplifier chip board, TDA2030 (15W 15W) This traditional 15W amplifier board to drive two speakers, and high-efficiency Class D PAM8410 pure amplifier board need only drive two 15W speakers Use a small heat sink, high efficiency super power, the sound quality is great.
 
Modification:
 
1. Analog Microelectronics America's original PAM8610 chip as amplifier chip, power can reach 10W 10W.
 
2. As pure class D amplifier board power requirements is relatively high, the exclusive use of the power amplifier board enthusiast 2200UF capacitor filter, the elimination of exchange voice, without interference, pure sound quality.
 
3. Using automatic placement machine production, the board is more beautiful.
 
4. Strip 5.5X2.5 standard power outlet, power input is very convenient. (Positive outside and negative inside)
 
Recently found to have bad business to buy this product to copy, workmanship, PCB design, and capacitor materials are not as ours, we have absolute import original IC, coupled with excellent PCB design and machine placement soldering, stable and reliable performance.
Pure Class D chip without fins can open detonation music, and now we have to chip plus a heat sink, you do not have to worry about overheating. !
 
Overview:
When the power supply voltage of DC 8V-12V, PAM8610 be able to 4Ω load 10W 10W output power, high-quality sound.
 
 
Technical Parameters:
Power: typically 10W
Voltage: DC DC8V-12V
Can drive speakers: 10W-15W, 4 -8 Euro Euro
 
Built-in power-impact sound canceling circuit, no power on impact sound
 
 
Physical picture:
 
 
 
 Compact board, 3.5MM stereo audio input interface, audio input with a standard easy. With fully enclosed volume control potentiometer, can be arbitrary adjust the volume, use and installation are very flexible and convenient
 
 
 
Use American Power Analog Microelectronics original PAM8610 pure Class D amplifier chip as the power amplifier IC, the maximum it can provide to 10W 10W of power, incredible sound.
 
PCB component placement tidy line with US FCC standards, all using genuine components using devices capable of long-term stability.
 
 
Heart-highlight fine arts star Electronic Manufacturing insist that only new element was the market mature products, please rest assured purchase.
 
 
 
 
 
Use enthusiast 2200UF capacitor, ensure pure sound quality.
 
Board size: Long 40mmX (excluding protruding parts of the volume potentiometer, etc.) wide by 19 40mmX
 
 
 
 
 
 
 
 Subjective sound experience:
 
     PAM8610 (10W) power to the PAM8406 (6W) bigger, more powerful speaker can drive, found this amplifier board can drive two 25W speakers.
Listen really surprised, it is hard to believe that such a small piece of the chip can be issued so great volume, stereo effect is very good, indicating a high degree of chip channel separation. Case of playing music, the performance was better than expected, chip minimal heat, the sound was amazing, more transparent treble, bass, or a certain amount, quality count in a small amplifier board in the upper level, listen to music from a very comfortable .
 
 
-------------------------------------------------- --------------------------------------------------
 
Precautions:
1: Power supply voltage can not exceed 12V
2: 4 speaker wire connection is completely independent, does not allow total access!
 
Just one of the cases appear immediately burn IC

 
 
 
 
 
 
Includingthejumper14differentlengths,each of10different colors, that isakit includes140different lengthshighqualityjumper.
 
 
very good package .don\\\'t miss some cable. very good box.
 
140lengthqualityjumper,red,orange, yellow, green,blue,purple,gray,brown, white.Boxsize:165×55 ×10mm;length of the lineisnot the samelength,the length of the line, a totallengthof14length10each,atotalof140(mm):2,5,7,10,12,15,17,20,22,25,50,75,100,125
 
Use this cable ,your breadboard will looks like below .very clear. what a good mood to do work!
 
 
 
 
 
 
 
 
 
 

Description:
1. The CH376 chip internal curing FAT file system, file operation is simple, fast,
2. Support U disk, USB hard disk, USB flash drive and USB card reader, USB storage device
3. Standard Capacity SD card support, high capacity HC-SD card as well as protocol-compatible MMC, TF card
4. Support a variety of communication interfaces: 8-bit parallel, SPI interface and asynchronous serial
5. Compatibility: Equipment manner compatible with CH372 compatible host with CH375
6. Module size: 50mm × 34mm
 
 
Package Included:
 
 
 
1 x  IC CH376S U Disk Read Write Module Supports USB Control Transfer 6MHz
 
 

 
 
 

   The Raspberry Pi Zero Case has been designed to fit both thePi Zeroand thePi Zero W.The case consists of two parts. It has a standard base featuring a cut-out to allow access to the GPIO, and a choice of three lids: a plain lid, a GPIO lid (allowing access to the GPIO from above), and a camera lid (which, when used with the short camera cable supplied, allows the Raspberry Pi Camera or Camera Noir to be fitted neatly inside it).
   Type: For Raspberry Pi Zero
   Material: ABS
   Color: Red White
   1 x Base
   3 x Lids (plain, GPIO, camera)
   1 x Short camera cable
   4 x Rubber feet
 

 
 

Package list :
GPIO Extension Board*1
 
 
 
 
 
 
 

Infrared distance measurement module
Model: GY - VL53L0X
Using the chip: VL53L0X
Power supply: 2.8 to 5 v
Communication: the IIC communication protocol (fully compatible with 3-5 v system)
Module size: 10.5 mm * 13.3 mm

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
New SHT21 Digital Humidity And Temperature Sensor Module Replace SHT11 SHT15 GY-21-HTU21
 
 
 
 
 
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
 
5V IR Infrared Remote Decoder Encoding Transmitter&Receiver Wireless Module
 
 
 

Three PWM pulse frequency duty cycle adjustable module square wave rectangular wave signal generator
Module highlights:
1. 3 PWM output, frequency adjustable, 3 frequency output consistent, duty cycle can be independently adjusted, suitable for most occasions;
2. LCD display frequency and duty cycle, very clear, very convenient to adjust
3. Wide frequency range and high precision;
4. Serial port communication
I. Module description
3 PWM output, wide frequency range, duty cycle can be independently real-time adjustment;
Frequency is divided into four ranges, automatic switching:
1. XXX(without decimal point) : The minimum unit is 1Hz. The value ranges from 1Hz to 999Hz.
The minimum unit is 0.01khz, and the value ranges from 1.00khz to 9.99khz;
3. XX.X(decimal place in ten) : the minimum unit is 0.1khz; Value range: 10.0KHz to 99.9KHz
4. X.X.X (decimal place in tens and hundreds) : the minimum unit is 1Khz; Value range: 1KHz to 150KHz
Frequency display: 100 means PWM output pulse of 100Hz;
1.01 indicates that the PWM output is 1.01K pulse;
54.1 represents a pulse of 54.1KHz for PWM output;
1.2.4 Represents the PWM output pulse of 124KHz;
Duty cycle Value range: 0 to 100% , where 100% is expressed in A0% .
All parameters are saved after power failure.
2. Parameter setting
Module has 8 independent keys, used to set the frequency and duty cycle, support short press (increase or decrease a unit) and long press (quickly increase or decrease), very simple, set the parameters automatically save, power loss is not lost.
3 way duty cycle button can be pressed at the same time, real-time adjustment, the liquid crystal display is the last button to press the duty cycle, real time is very strong, can be used for simple several way duty cycle scanning.
Iii. Module parameters:
Operating voltage: 3.3~30V;
2. Frequency range: 1Hz~150KHz;
3. Frequency accuracy: the accuracy in each range is about 2% ;
4. Signal load capacity: the output current can be about 5~ 30mA;
5. Output amplitude: THE PWM amplitude is equal to the supply voltage;
6. Ambient temperature: -20 ℃ to 70℃.
Four, the scope of application:
1. Used as a square wave signal generator to generate square wave signals for experimental development;
2. Used to generate the square wave signal to control the motor driver;
3. Generate adjustable pulse for MCU use;
4. Generate adjustable pulse, control related circuit (PWM dimming speed control and other applications).
Five, serial port control (MCU TTL level communication)
Communication standard :9600 BPS Data bit :8
Stop bits: 1
Check digit: none
Flow control: none
1. Set the FREQUENCY of PWM
F101: Set the frequency to 101 HZ (001 to 999).
"F1.05" : Set the frequency to 1.05khz (1.00~9.99)
"F10.5" : Set frequency to 10.5khz (10.0~99.9)
"F1.0.5" : set the frequency to 105KHZ (1.0.0~1.5.0)
2. Set the duty cycle of PWM
Dx: YYy: sets the duty cycle of PWM x: (1~3) PWM number, YYY: (000-100) duty cycle % ;
For example, D1:050, set the duty cycle of route 1 PWM to 50%
3. Read the setting parameters
Send a "read" string to read the set parameter.
Read data in the following format: F156, D1:052, D2:059, D3:058,
Returns: DOWN;
Failure to set returns: FALL.

 

 
 
 
 
Product Description
 
 
FT232RL USB To Serial Line Download Line Downloader USB TO 232
Description:
FT232RL USB Turn Serial Line
Chip is FT232RL
FT232RL USB Turn Serial Line Download Line Downloader USB TO 232
 
Package included:
1x FT232RL USB module

CJMCU-CP2102 its highly integrated, built-in USB2.0 full-speed function controller, USB transceiver, crystal oscillator, EEPROM and asynchronous serial data bus (UART), supports full-featured modem signal without any external USB devices. CJMCU-CP2102 works with other USB-UART adapter circuit similar to the driver through the PC's USB port to a virtual COM port expansion in order to achieve the purpose.
CJMCU- gesture communication module USB to TTL module 5V power output TTL level kernel CJMCU-CP2102 CP2102 is a highly integrated USB-UART bridge to provide a minimum of components and PCB space to achieve a simple USB RS232 converter to solve program. Simply put, it is this: the user CJMCU-CP2102 USB interface and RS232 interface will be able to convert each other.
Feature:
Original CP2102 chip to generate COM port after installing the driver.
MICRO MINI-USB connection standard input connected to a computer USB interface cable with two power 3.3V and 5V voltage output
With a resettable fuse. In the event of accidental short, can effectively protect your downloads and computer USB port
Onboard status indicator lights transceiver, properly installed rear drive status indicator lit, receiving indicator flashes when communicating with LED running lights.
Supports baud rates from 300bps ~ 1Mbps between
USB Block MICRO MINI-USB interface for seat
SMD components for the regular company of welding, stable quality, beautiful appearance
With DTR trigger signal output can be directly  pro mini ATMEGA328P board download programs and other communication
Embedded USB transceiver, without external circuit device
Containing clock circuit, no external circuitry is
Contains power-on reset circuit
On-chip voltage regulator output voltage 3.3V
In line with USB2.0 specification requirements
SUSPEND pin supports USB Suspend state
Asynchronous serial data bus compatible with all handshakes and modulation controller interface signals
Supported data formats for 8 data bits, 1 stop bit and parity bits
Connotation 512 byte receive buffer and 512 byte transmit buffer
Support for hardware or X-ON / X-OFF handshake
 
 
 

 
 
 
One, Introduction
This expansion board as a driver expansion board, can be used for engraving machines, 3D printers.
It is a total of four slots, can drive four A4988 stepper motor. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use.
 
Two, UNO formoduleIOportcorrespondenceintroduction.
 
IOcorrespondingfigure above
 
UNO for ---------------------- expansion board
8 ------------------------ EN ( stepper motor driver enable , active low )
7 ----------------------- Z.DIR (Z -axis direction control )
6 ----------------------- Y.DIR (Y -axis direction control )
5 ----------------------- X.DIR (X -axis direction control )
4 ---------------------- Z.STEP (Z -axis stepper control )
3 ---------------------- Y.STEP (Y -axis stepper control )
2 ---------------------- X.STEP (X -axis stepper control )
 
 

ESP-12E motor drive expansion board
 
Description:
 
Based on the first motor-driven expansion board ESP-12E development.
 
Features:
 
l ESP12 DEV KIT development board expansion module;
 
l lead ESP12 DEV KIT All-function pins: SPI, UART, GPIO, AI and 3.3V power connector;
 
l expand two-way motor-driven, two-way direct drive motor;
 
l onboard power switch;
 
l L293D
 
l Motor power range: 4.5V ~ 36V;
 
l Control power range: 4.5V ~ 9V;
 
l Motor power, control power separation; In the experiment, by short-circuiting block the merger, the VIN and VM short, while power supply to the motor and the control board.
Technical Specifications
 
Power input:
 
- Motor Power (VM): 4.5V ~ 36V, can be a separate power supply;
 
~ Control power (VIN): 4.5V ~ 9V (10VMAX), can be powered separately;
 
~ Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) simultaneously drive and control the motor;
 
Logic Operating current Iss: 60mA (Vi = L), 22mA (Vi = H);
 
Drive part of the work current Io: 1.2A;
 
Maximum power dissipation: 4W (T = 90 )
 
Control signal input level: High: 2.3VVIHVIN; Low: -0.3VVIL1.5V
 
Working temperature: -25  ~ 125 
 
Drive Type: Dual high-power H-bridge driver
 
ESP12E Dev Kit Control Port: D1, D3 (A motor); D2, D4 (B motor)
 
Module Weight: about 20g
Precautions
 
When l insert ESP-12E module, please note the direction consistent with an expansion board antenna;
 
l use of short modules that can simultaneously control board and motor.
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
 
 
 
Electronic Building Blocks Slide Potentiometer  Potentiometer Adjustment Module
 
Description:
 
High quality sliding appliances, stable and reliable performance
Two analog outputs, analog output 0-VCC voltage signal
Size: 90 * 20mm
Weight: 20g
Voltage: 3.3V, 5V
Port: Analog
Resistance: 10K
Platform: for Arduin, MCU, ARM, and other microcontroller platforms
 
Package Included:
 
1 X Slide potentiometers module
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
RF module IC card MFRC-522 RFID sensing module to send S50 Fudan White Card Key
hipping list
1, RFID-RC522 module a;
2, a standard S50 blank card;
3, S50 profiled a card (as shown in the figure keychain shape);
4, vertical, curved row of pins;
 

CJMCU-1201 Magnetic Isolator Board Replace Optocouplers ADUM1201 ADUM1201ARZ
 
.