Some Arduino hints/tips/workarounds

Last Updated or created 2023-03-28

These are last weeks findings, I will add to this page when I discover other useful things.


  • always include “Arduino.h”
  • Order of functions matter! (Not with Arduino IDE)
  • setup serial monitor speed in platformio.ini
    monitor_speed = 115200

Arduino IDE

  • Build error “panic: runtime error: index out of range [3] with length 3” or length 4.
    Code probably correct, build with another board and build+upload with correct board as workaround.


  • Using a SSD1306 with other pins?
    For example with Adafruit_SSD1306.h
    in setup(){ place
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