This connects the receive (RX) pin of the HC-05 Bluetooth module to pin 11 on the Arduino. Pin 11 is configured as the TX pin in the software serial port (BTSerial), meaning it will send data to the ...

2. TXD pin of the module is connected to Arduino's Receiver pin(RX) 3. Ground of the module is given to ground of Arduino. 4. VCC of the module is connected to +5v on the breadboard. After making the ...

If the LED starts blinking in every 2 seconds interval means the module is in command mode. We can now give AT commands to it using the Serial monitor of Arduino IDE. If the module doesn’t have any ...

We need to change some settings inside the HC05 Bluetooth Module, to do this, we have to go into the HC05 module’s AT Command Mode and send commands to it through the Arduino IDE’s serial monitor. To ...

Different port pins of Arduino are used to drive the 16×2 LCD as shown in the circuit. The message typed by the user on the Android based smartphone is received by the Bluetooth module and transmitted ...