Hi! I am using Arduino IDE to program my NodeMCU module. I am trying to interface seven segment display using MAX7219 IC. FOr that I am using LedControl library from here . I have seen people using LedControl library with their ESP8266 but my IDE is refusing to compile it. One of the tutorials even …

One of the tutorials even said "Since the LedControl library does not utilize any hardware specific functions of Arduino platform, it is compatible with ESP8266" Well, you know that EVERYTHING you read on the internet is the absolute truth, and nothing but the truth, you must be doing something w…

the esp8266 core really contains that file in the 2.4.1 git version Arduino/cores/esp8266/avr at master · esp8266/Arduino master/cores/esp8266/avr ESP8266 core for Arduino. Contribute to esp8266/Arduino development by creating an account on GitHub.

I found the answer. You can remove #include <avr/pgmspace> from the LedControl.h header file or just create the dir where it is looking for the file. I took the easy route. GOOD LUCK!!

Juraj: the esp8266 core really contains that file in the 2.4.1 version Arduino/cores/esp8266/avr at master · esp8266/Arduino · GitHub That change was actually made after the 2.4.1 release so the current code will not work with ESP8266 core 2.4.1. With 2.4.1 or earlier you would do something lik…

"Fatal Error: avr/pgmspace.h no such file or directory" error for ESP8266

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Juraj July 25, 2018, 11:16am 3

the esp8266 core really contains that file in the ~~2.4.1~~ git version

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"Fatal Error: avr/pgmspace.h no such file or directory" error for ESP8266

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