HC 05 Classic Bluetooth

In this example we will connect an Android device to an Arduino using class Bluetooth with the HC 05 module.

Working with this module is simple. Connect the power and gnd pins and connect the HC05 RX pin to an Arduino TX pin and the HC05 TX pin to an Arduino RX pin.

The HC05 RX pin expects 3.3 volt. In this case I'm using the...

HC 05 Classic Bluetooth

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