It is ESP8266, and I am using the Arduino framework (VS Code + Platform IO). The documentation uses constants like ESP_OK or ESP_ERR_ESPNOW_INTERNAL, but what to include to use them with the Arduino framework? There seems to be no "esp_now.h" but only "espnow.h" (.platformio\packages\framework-arduinoespressif8266\tools\sdk\include\espnow.h), and it does not include such constants.
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Jonas
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Damn Vegetables
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That documentation is for ESP-IDF i.e. ESP32. Did you take a look at https://randomnerdtutorials.com/esp-now-esp8266-nodemcu-arduino-ide/ – Marcel Stör Sep 19 '21 at 06:18
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try to download the files manually from github and adding to libs folder – NeWi-SL Sep 21 '21 at 14:35