User's Manual

Pad Type Description
PIO1
Status instruction port of Bluetooth module can be read by
Arduino A1 port: low-disconnected, high-connected.
BT_RX UART Data input of Bluetooth module
BT_TX UART Data output Bluetooth module
Two Grove
connectors
One is Digital (D8 and D9), the other is I2C/Analog (A4 and A5).
5. Usage
5.1 Hardware Installation
Plug the Bluetooth Shield onto Arduino/Seeeduino and then connect the board to
PC using USB cable.