Arduino Expansion Shield for Raspberry Pi B - DFRobot

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

The Bluetooth Module 4.0 BLE Micro EVB can be easily placed on your PCB card, just ignore problems such as "how to design an antenna", "how to make a bluetooth chip work" and so on. The Bluetooth 4.0 BLE Micro EVB Module is perfect for portable projects. With it, you can use Android or IOS devices to communicate with your clothes!