Problem with UTF-8 characters using ESP32

[MicSG-dev]

I did some tests with Arduino boards of different models with a baudrate of 115200 using the following Arduino sketch:

void setup() {
 Serial.begin(115200);
}

void loop() {
 Serial.println("ã");
 Serial.println("ç");
 delay(1000);
}

Testing Results: Raspberry Pi Pico	✅
DOIT ESP32 DEVKIT V1	❌
Arduino Mega	✅

• Test OK with Arduino Mega and Raspberry Pi Pico:

• Test failure with ESP32:

The strangest thing is that when using the same ESP32 board with other Serial Monitors the result is successful:

• MobaXterm:

• ArduinoIDE 1.8.19:

• ArduinoIDE 2.3.2:

When using hexadecimal output in the vscode-serial-monitor extension, with both the Raspberry Pi Pico which succeeds and the ESP32 which fails the tests, the same content is presented:

Originally posted by @MicSG-dev at https://github.com/microsoft/vscode-serial-monitor/issues/168#issuecomment-2232173670

[alka79]

Hi, I ran in the same issue (which is quite surprising in 2024). I switched to pre-release of the Serial Monitor extension [ v0.12.240807001 (pre-release) ] and it works on a ESP32-S3 :)