The setup is following - Arduino is connected to the Bluetooth module. Instead of connecting USB cable you pair your PC with HC-05 module. OS will create a serial port which you already know how to ...

The plan. There are some articles on implementation of the "Over the Air" updates based on combination of Arduino and HC-05. In this post I describe realization which needs only one soldered wire to ...

In a conventional door lock, there is a key to pull or push the latch, and we have to operate it manually, but in a solenoid lock, the latch can be operated automatically by applying a voltage across ...