Simple Hello World with PlatformIO and M5Dial

uberdweeb

I am just getting started with M5Dial. I have some programs working in Arduino studio program but Visual Studio Code and PlatformIO seems way better.

Here is where I am stuck:
I have the platformio.ini file like this:

[env:m5stack-cores3]
platform = espressif32
board = m5stack-cores3
framework = arduino

lib_deps =
m5stack/M5Dial
m5stack/M5GFX
m5stack/M5Unified

upload_speed = 115200
monitor_speed = 115200

and my main.cpp program is simply:

#include <Arduino.h>

#include "M5Dial.h"
#include <WiFi.h>
#include <M5GFX.h>

void setup() {
// put your setup code here, to run once:
auto cfg = M5.config();
M5Dial.begin(cfg, true, true);
M5Dial.Display.setBrightness(34);
M5Dial.Display.fillScreen(0xABE1);
M5Dial.Display.setTextDatum(4);
Serial.print("Test");
}

void loop() {
// put your main code here, to run repeatedly:
}

Everything compiles and uploads but screen is blank. Serial monitor equivalent complains about a lot.

Did I choose the wrong board?
board = m5stack-cores3

uberdweeb

After I wrote all of this I figured out I did have the wrong board specified:
board = m5stack-stamps3
seems to be correct.

Now I can't get USBSerial functions to work, and previously any Serial.print statements didn't work but I am one step further!

MatejTech

@uberdweeb Hello! Sorry for late answer, but I have the fix for it. All you need to do is modify the platformio.ini file, and write this into it:

[env:m5stack-stamps3]
platform = espressif32
board = m5stack-stamps3
framework = arduino
build_flags =
   -DARDUINO_USB_CDC_ON_BOOT=1
monitor_speed = 115200