MicroSD card breakout board

Gravity: IO Expansion Shield for Arduino V7.1

This DTMF Shield is a Dual-tone multi-frequency signaling module decoder for Arduino With it's audio connector you can decode the crazy funny noises common phones make.

WiDo is a WIFI IoT Node development board compatible with Arduino.

This version of the Ethernet Shield is not only compatible with Mega 1280 and 2560, but also provides a Micro SD card slot for read / write

This 4-digit 7-segment shield has 5 buttons that can be used as menu selection buttons or control buttons, using I2C to conduct the digital call.

The MQ4 is used in gas leak detection equipment in the consumer and industrial markets, this sensor is suitable for detecting CH4 , natural gas , LNG , avoiding exposure to alcohol, kitchen smoke and cigarette smoke . Sensitivity can be adjusted by potentiometer

This RS232 shield is designed for the Arduino controller and can easily convert UART to RS232 interface.

This AA boost module integrates with TI's TPS61032 auxiliary chip, which is capable of producing 5V 1A with input above 1.8V . The only difference between V1 and V2 is to change the output current from 2A to 1A.

Do you want to program your RGB LED strip to be a little more "rhythmic" or "unpredictable"? This RGB LED Strip Shield contains all the necessary components to create a super cool RGB LED project with your Arduino.

The IoT Gravity for Micro: Bit Starter Kit is a complete micro-bit starter kit that quickly experiments and develops designs.