Hi everybody, so far, I only cloned projects that I then built via platformio; now I am trying to finally learn to work with my arduinos and write my own code. I am trying to create functions, googled some code, and modified it to this void setup() { Serial.begin(9600); meins(); //Serial…

Hi, Has the compiler tell you in the output, your “meins()” function has to be declared before you called it. Simply move your “mein()” function at the begeinning, or add this line before the “setup()” function: void meins(); If not, the compiler will not understand what function you are talki…

copperbot-d July 26, 2020, 2:50pm 4

A more detailed explanation here

It seems that ArduinoIDE is doing a lot of work backstage to be as mush “easy-to-use” as possible, like doing forward declarations by itself ^^

Beginner: code works in arduino IDE, but not in platformio?