Controlling Raspberry Pi using Bluetooth

Serial data can also be sent through Bluetooth by connecting a HC-05 Bluetooth module that supports the Serial Port Profile (SPP) to the GPIO serial RX/TX pins. This allows the serial connection to become wireless, which allows Android tablets or smartphones to be used to control things and to read data from Raspberry Pi:

The HC-05 Bluetooth module for the TLL serial

Note

While it is possible to achieve a similar result using a USB Bluetooth dongle, additional configuration would be required depending on the particular dongle used. The TTL Bluetooth module provides a drop-in replacement for a physical cable, requiring very little additional configuration.

Getting ready

Ensure that the serial console has been disabled (see the previous There's more... section).

The module should be connected using the following pins:

Connection to a Bluetooth module for the TLL serial

How to do it...

With the Bluetooth module configured and connected, we can pair the module...