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BluetoothSerialBluetoothSerial
RESP32’s built-in Bluetooth functionality, you can opt for Classic Bluetooth or Bluetooth Low Energy (BLE) depending on your project. Classic Bluetooth is great for continuous data exchange, while BLE is optimized for low-power, intermittent communication.S
SSSRMCU) resets is kinda common which leads to a garbage character appearing on your serial monitor. it's usually caused by UART Line Behavior During Reset, Baud Rate Instability and electrical noise to resolve this u should use a capacitor on d reset pin to reduce noise and signal instability and also ensure UART transmissions are only enabled after full initialization, Implement pull-up/pull-down resistors on UART lines to prevent them from floating and apply logic to ignore or filter unexpected characters during startup.ESP32’sClassic BluetoothClassic BluetoothBluetooth Low EnergyBLEMCUUART Line Behavior During ResetBaud Rate InstabilityUART#include "BluetoothSerial.h"
#include <BLEDevice.h>
#include <BLEServer.h>
BluetoothSerial ESP_BT; // Classic Bluetooth object
void setup() {
Serial.begin(115200);
// Classic Bluetooth setup
ESP_BT.begin("ESP32_BT_Device"); // Name the device
Serial.println("Classic Bluetooth Device is Ready to Pair");
// BLE setup
BLEDevice::init("ESP32_BLE_Server"); // Name the BLE server
BLEServer *pServer = BLEDevice::createServer();
Serial.println("BLE Server is Running");
}
void loop() {
// Handle Classic Bluetooth data
if (ESP_BT.available()) {
char received = ESP_BT.read();
Serial.write(received); // Echo received data
}
// BLE logic can be added here as needed for advanced configurations
}
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