Microcontrollers & Acc

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DHT22 (DHT 22)
  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • Good for 0-100% humidity readings with 2-5% accuracy
  • Good for -40 to 80°C temperature readings ±0.5°C accuracy
  • No more than 0.5 Hz sampling rate (once every 2 seconds)
  • Body size 15.1mm x 25mm x 7.7mm
  • 4 pins with 0.1" spacing
Rs 200
DHT11 (DHT 11)
  • Ultra low cost
  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • Good for 20-80% humidity readings with 5% accuracy
  • Good for 0-50°C temperature readings ±2°C accuracy
  • No more than 1 Hz sampling rate (once every second)
  • Body size 15.5mm x 12mm x 5.5mm
  • 4 pins with 0.1" spacing
Rs 100
LAN8720 Smart Electronics Network Ethernet Module (LAN8720)
High-Performance 10/100 Ethernet Physical Layer Transceiver (PHY)
Supports the reduced pin count RMII interface
Supports HP Auto-MDIX
Supports single 3.3V supply
Onboard chip package: 24-pin QFN (4x4 mm) Lead-Free RoHS Compliant package
Flexible Power Management Architecture
Integrated 1.2V regulator
I/O voltage range: +1.6V to +3.6V
Rs 300
ESP 8266 30 Pins Unsoldered Headers 32mbits HW 628 V1.1 (ESP8266 Soldered 30 PIN)

Size approx  25.8 x 49.2 mm
WIFI NodeM ESP8266+32Mb, module is based on widely explored esp8266 System on Chip from Expressif.

WIFI NodeM ESP8266+32Mb, compatible for NodeMCU board. We add extra memory size to 32Mb. This better, for make big project with big library. You not need to worry about size of memory.
On board have USB-TTL serial converter CH340G, with Micro-USB socket.
PowerIn for DC 5~9V, to pin VIN.
Pin headers 2.54mm (0.1") 15 pins x 2 lines in set.

It combined features of WIFI accesspoint and station + microcontroller and uses simple LUA based programming language.
WIFI NodeM ESP8266+32Mb, offer:
Arduin0-like hardware IO. And can programming in Arduin0 IDE
Event-driven API for network applicaitons
10 GPIOs D0-D10, PWM functionality, IIC and SPI communicaiton, 1-Wire and ADC A0 etc. all in one board
Wifi networking 

Rs 300
GPIO Expansion I2C (I2C GPIO expander x 8 )

Operating supply voltage 2.5 V to 6 V 
The PCF8574 IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. Up to 8 PCF8574 IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports.
PCF8574, I2C interface, 8-bit parallel port.
For the lack of I / O resources mcu to I / O expansion.
Supports two types of access to the target board interface: pin or row.
Supports I2C bus cascade (via pencil row docking methods used simultaneously several I2C modules).


If your IO port is not enough, you can use the PCF8575 expansion board to expand more IO ports. Only two wires are needed. SDA and SCL can realize the input and output control of 16 IO ports, which is very simple to use. The I2C signal can be simulated by software, and some microcontrollers with I2C interface can operate directly.

Rs 250
Servo Driver HAT for Raspberry Pi, 16-Channel, 12-bit, I2C (Servo Driver HAT for Raspberry Pi, 16-Channel, 12-bit, I2C)


The Raspberry Pi is a powerful SBC, yet it can't provide PWM output.  Now this powerful HAT drives Servo motor  for you.



  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
  • I2C controlled, using only 2 pins
  • Up to 16-Channel servo/PWM outputs, 12-bit resolution for each channel (4096 scales)
  • Integrates 5V regulator, up to 3A output current, can be powered from battery through VIN terminal
  • Standard servo interface, supports common used servo such as SG90, MG90S, MG996R, etc.
  • Reserved I2C control pins, allows to work with other control boards
  • Comes with development resources and manual (examples in python like Bluetooth/WiFi remote control)



  • Power supply: 5V (Pi connector) OR 6V~12V (VIN terminal)
  • Servo voltage: 5V
  • Logic voltage: 3.3V
  • Driver: PCA9685
  • Control interface: I2C
  • Dimension: 65mm x 30mm
  • Mounting hole size: 3.0mm
Rs 450
Shield Expansion Board for Arduino Mega (MEGA-EXP-BRD-001)


Arduino Mega Sensor Expansion Board Shield allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers.This mega sensor shield v2.0 allows you to hoop up the sensors directly to Arduino mega (2560) or Arduino mega(ADK) without the use of the breadboard. it also expand the mega with Bluetooth module communication interface ,SD card module communication interface, APC220 radio-frequency module communication interface, RB URF v1.1 ultrasonic sensor interface and ICSP interface. easy to use for extension.


  • PIN13 Stat Power LED indicator
  • Digital IO Ports D0-D53
  • Analog IO Ports A0-A15
  • Reset Button up to top
  • External Power In
  • SD Card Interface
  • Ultrasonic Interface
  • ISP Interface
  • Bluetooth Interface
  • APC220 Interface
  • Dimension:53.5mm * 100mm

* Product Images are shown for illustrative purposes only and may differ from actual product.

Rs 350
RTC real-time clock module DS3231SN ChronoDot V2.0 I2C (ChronoDot V2.0)

RTC real-time clock module DS3231SN ChronoDot V2.0 I2C

Oporating Voltage 5.0 V DC.

Battery type required CR1220 battery

The DS3231 has an internal crystal and a switched bank of tuning capacitors. The temperature of the crystal is continuously monitored, and the capacitors are adjusted to maintain a stable frequency. Other RTC solutions may drift minutes per month, especially in extreme temperature ranges...the ChronoDot will drift less than a minute per year. This makes the ChronoDot very well suited for time critical applications that cannot be regularly synchronized to an external clock.

The ChronoDot will plug into a standard solderless breadboard and also has mounting holes for chassis installation.

The I2C interface is very straightforward and virtually identical to the register address, which means that existing code for the Arduino, Basic Stamp, Cubloc, and other controllers should work with no modification.

** Does not include battery

Rs 200
DC-DC Step Down converter (LM2596)


  • This module features the adjustable LM2596 step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation.

    This module has a multi-turn trimpot (potentiometer) that you can use to adjust the LM2596's output voltage. Since the trimpot has 25 turns of adjustment you can easily adjust the output of the module to exactly the voltage you need.

    The simplest way to reduce the voltage of a DC supply voltage is to use a linear voltage regulator (LDO), but linear regulators step down voltage by dissipating the excess energy as heat and do not yield any current step up. on the other hand, can be remarkably efficient and provide a step up in current output. Buck converters are one of the best ways to provide a regulated voltage from a battery since they don't waste near as much energy in the process of dropping the input voltage as a linear regulator would waste.

    Input Voltage3 to 40 V
    Output Voltage Range1.23 to 37 V
    Max Output Current3 A
    Adjustment25-Turn Trimpot
    Efficiencyup to ~93%
    Switching Frequency150 kHz
    Built-In Protectionthermal shutdown and current limit
    Length43.2 mm (1.701")
    Width21 mm (0.827")
    Height14 mm (0.551")
    Weight11.23 g (0.396 oz)
Rs 150
AD8232 ECG Measurement Pulse Heart Sensor (AD8232 ECG Measurement Pulse Heart)
1.AD8232 adopts double poles high-pass filter to eliminate the motion artifacts and electrode half cell potential
2.AD8232 adopts an operational amplifier that is without using constraint to build a three pole low pass filter, eliminating extra noises
- Rated temp range : 0----70degree
- Working temp range: -40-----85degree
Rs 500
AHT10 Temperature and Humidity Sensor
1. Module size: 16*11mm

2. The port type: I2C

3. Working voltage: 1.8 - 6.0V

4. Interface size: 4*2.54mm spacing

5. The humidity precision: typical ± 2%

6. Humidity resolution: 0.024%

7. Temperature accuracy: typical ± 0.3 °c

8. Temperature resolution: typical 0.01 °c

9. The operating temperature: -40 ℃-85 ℃
Rs 200
INMP441 I2S Microphone MEMS I2S

INMP441 Omnidirectional Microphone Module MEMS I2S Interface Supports ESP32

INMP441 is a high performance, low power consumption, digital output, omnidirectional MEMS microphone with bottom port. The
The complete INMP441 solution consists of a MEMS sensor, signal composition conditioning, analog-to-digital converter, anti-aliasing filter, power management and industry standard 24-bit I2S interface. The I2S interface allows INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for the audio codec used in the system. INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. INMP441 has a flat broadband frequency response, resulting in high definition of natural sound.

Product Features:
1. Digital I2S interface with high-precision 24-bit data
2. High signal-to-noise ratio of 61 dBA
3. High sensitivity -26 dBFS
4. Stable frequency response from 60 Hz to 15 kHz
5. Low power consumption: low current consumption of 1.4 mA
6. High PSR: -75 dBFS

Rs 400
Micro SD TF Card Memory Shield Module
1. It supports Micro SD card,Micro SDHC card
2. Communication interface is a standard interface
3. 4 M2 screw positioning hole, easy to install
4. Power supply:4.5-5.5V
5. Current:0.2-200mA
6. Interface level:3.3 or 5v
7. Cards Supported: Micro SD card(<=2G),
Mirco SDHC card(<=32G)
8. Size:42X24X12mm
Rs 75
GY-68 BMP180 Atmospheric Pressure Sensor (GY-68 BMP180)
1.8V to 3.6V Supply Voltage
Low power consumption - 0.5uA at 1Hz
I2C interface
Max I2C Speed: 3.5Mhz
Very low noise - up to 0.02hPa (17cm)
Full calibrated
Pressure Range: 300hPa to 1100hPa (+9000m to -500m)
Rs 75
MPU6500 Accelerometer Gyro Sensor (MPU6500 GY-6500)
Module model: GY-6500
Using the chip: MPU-6500
Power supply: 3-5v (internal low dropout voltage regulation)
Communication method: standard IIC/SPI communication protocol
Chip built-in 16bit AD converter, 16-bit data output
Gyro range: ±250 500 1000 2000 °/s
Acceleration range: ±2±4±8±16g
Adopting Shenjin PCB, the machine welding process guarantees the quality
Pin pitch 2.54mm
Module size 15mm*25mm
Rs 150
WAVGAT Arduino UNO R3 Clone (WAVGAT Arduino UNO R3 Clone )


Operating Voltage: 5V
Input Voltage (Recommended): 7-12V
Power 5V: Provided through USB Type-B Port  
Power External: Through 2.1mm barrel jack (7v to 12v DC)
Digital I/O Pins: 14 (of which 6 provide PWM output)
Digital I/O: 3.3v Logic Levels
PWM Digital I/O Pins: 6
Analog Input Pins: 6 (3.3v Logic Levels)
ISP Programming: Available through TX/RX ports
DC Current per I/O Pin: 20 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB
Clock Speed: 16 Mhz Oscillator


ATmega328P devices use 3.3v logic levels, unlike other devices which may use 5v logic levels. For this reason, when interfacing to other devices which will drive your Wavgat Arduino Uno R3 board. A simple voltage divider circuit is all that is required.

Rs 300
RAMPS 1.6 R6 Board (Shield for MEGA)
Ramps 1.6 for 3D Printer DescriptionThe board can be extended to LCD and other parts.
The board has heater and fan MOSFET outputs and 3 thermistor interfaces.
The LED will light when the heater has output.
Heated bed has additional 11A fuses.
Two Z motor outputs available incase you want to connect..

Jumper included to configure the steps of your driver board

Rs 500
TCS230 TCS3200D Color Sensor (TCS3200)


On-board TCS3200 color sensors

Take the wide Angle lens , removable, can identify the large or small area of objects.

Support 3 V-5 V voltage input

Chip pin all has drawn, put the needle for standard 100 mil (2.54 mm), convenient for bitmap board

With four highlighted white LED, can light up some of their own light objects. Glowing tube is controllable.

 S1 S2, S3 S4 can board up or down.

Have 2 3 mm install screw hole, span 16.5 mm

  PCB size: 23 mm X 30 mm

Rs 450
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