Otherwise it can be said that the module can be controlled fairly easily using AT commands, sent simply via the serial terminal or by software, either running on a PC or on the Arduino Nano. When the only jumper on the Bluething board is changed from the ‘AT’ to the ‘COM’ position, the board acts as a direct serial radio bridge or Bluetooth/serial communication converter for sending data over the Bluetooth link.

Conclusion

The Bluething board is a tad more expensive than its Wi-Fi equipped cousin. The main reason is that universal BT modules are more expensive compared to those tailored to a specific application. Together with its Arduino Nano, the Bluething provides a neat universal solution to equip an application with wireless connectivity together with some programming capability. Thanks to the choice of Arduino's intuitive and widespread solution for the IDE, this board offers a useful range of digital and analog I/O ports which can be used to control things or read sensors. In addition it has super-simple serial control of the BT module providing an RF communication link without the need to get to grips with complex protocols. In its current release state the board firmware examples are commented in German only and the Android app is only available in Germany. The Bluething is however an ideal starting point for your own IoT projects, just as long as you aren’t thinking about iOS...