component required:-
Arduino Uno X1:-
Hc05 Bluetooth module X1:-
LED X1:-
Male to female jumper wires:-
Let’s Start Building
The circuit is so simple and small, there are only a few connections to be made
Arduino Pins Bluetooth Pins
RX (Pin 0) TX
TX (Pin 1) RX
5V VCC
GND GND
Connect a LED negative to GND of Arduino and positive to pin 13 . And you're done with the circuit
Note: Don’t Connect RX to RX and TX to TX of Bluetooth to Arduino you will receive no data, Here TX means Transmit and RX means Receive
How Does it Work?
HC 05/06 works on serial communication.here the android app is designed sending serial data to the Bluetooth module when certain button is pressed. The Bluetooth module at other end receives the data and send to ardunio through the TX pin of Bluetooth module(RX pin of Arduino). The Code fed to Arduino checks the received data and compares.If received data is 1 the LED turns on turns OFF when received data is 0
coding and programming details go this link:-https://drive.google.com/folderview?id=11JXq4AUqIpF9Z_QZp7_RqMGgxqT1IJtV
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