ITEAD Bluetooth Shield : BT Shield v2.1 (Slave)

This Bluetooth shield is a serial port Bluetooth module (Slave) breakout board, and it compatible with Arduino,  you can directly plug in with Arduino and use the UART port for Bluetooth communication.

AND WHAT'S NEW?

1. Now the new shield is full Arduino footprint , and add the stackable socket for connecting with other Arduino shield like Ethernet shield , SD card shield.

2. Add a power switch for the shield, now you not just use it with some 5V interface board like Arduino, but also now can compatible with many other 3v3 boards like IFAT-32, Leaf Maple, and so on.

3. The BT shield v1.1 just can communicate with Arduino board, and it’s inconvenient to change its setting by AT command through USB. Now the new board has a switcher, you can change the module connection, so when you put the switcher to the “To Board” side, it can control by Arduino or IFLAT32, but to “To FT232” side, it connect to the FT232D IC, you can use the Arduino IDE or other serial monitor software to send it the AT command.About the AT command , you can find more detailed information here.

4. In the free area, we provide you a prototype area, and you can build a small circuit there for your Bluetooth

Schematic

Datasheet