Bluetooth on the 5 inch screen - function not supported?

SuperRoach · September 13

Hello, I just tried to follow the Course guides, with the idea I just wanted to test bluetooth on the 5inch panel version.
Based on what I can see, It doesn't work? Am I missing something?

Simplified, the code to try and connect via bluetooth classic (master to slave) would be:

#include "BluetoothSerial.h"
BluetoothSerial SerialBT;  
SerialBT.begin(myName, true); // Start Bluetooth serial  
SerialBT.setPin(pin); // Set the pairing code

With the last line of code, I get this error
no matching function for call to 'BluetoothSerial::setPin(const char*&)'
It's a v3 panel if that helps.
What step am I missing?

SuperRoach · September 13

I thought I'd try an isolated piece of code using solely bluetooth as well, but I think I'm missing something there too - the code won't compile for the board using this.

#include "BluetoothSerial.h"  // Include the BluetoothSerial library

BluetoothSerial SerialBT;  // Create a BluetoothSerial object

void setup() {
  Serial.begin(115200);  // Initialize serial communication at 115200 baud rate
  if (!SerialBT.begin("ESP32_SPP")) {  // Start Bluetooth with device name "ESP32_SPP"
    Serial.println("An error occurred initializing Bluetooth");
  } else {
    Serial.println("Bluetooth started. You can now pair your device.");
  }
}

void loop() {
  // Check if there's data available from the Bluetooth connection
  if (SerialBT.available()) {
    // Read the incoming data
    char incomingChar = SerialBT.read();
    Serial.print("Received: ");
    Serial.println(incomingChar);

    // Send back a response
    SerialBT.print("I received: ");
    SerialBT.println(incomingChar);
  }

  // Optionally, you can send data from the Serial Monitor to the connected Bluetooth device
  if (Serial.available()) {
    String data = Serial.readString();
    SerialBT.println(data);
  }
}

The error I get here is "Error compiling for board ESP32S3 Dev Module."

Winny · October 18

Hello @SuperRoach
The chip of the 5-inch HMI is ESP32 S3, which doesn't support Bluetooth.

And for the error message, please check if the setting is correct(please refer to https://www.elecrow.com/wiki/ESP32_Display_5.0-inch_HMI_Arduino_Tutorial.html#upload-the-code )

Bluetooth on the 5 inch screen - function not supported?

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