This document provides a detailed overview of a circuit that interfaces an Arduino UNO with a Bluetooth module. The Arduino UNO is used to establish serial communication with the Bluetooth module, allowing for data exchange. The Bluetooth module is connected to the Arduino's hardware serial pins (D0 for RX and D1 for TX). The Arduino reads data from the Bluetooth module and echoes it back.
/*
* Arduino UNO Bluetooth Communication Interface
* This sketch sets up serial communication between the Arduino UNO and a
* Bluetooth module. The Bluetooth module is connected to the Arduino's
* hardware serial pins (D0 for RX and D1 for TX). The Arduino will
* continuously read data from the Bluetooth module and echo it back.
*/
void setup() {
// Initialize serial communication at 9600 baud rate
Serial.begin(9600);
}
void loop() {
// Check if data is available to read from the Bluetooth module
if (Serial.available() > 0) {
// Read the incoming byte
char incomingByte = Serial.read();
// Echo the byte back to the Bluetooth module
Serial.write(incomingByte);
}
}