esp8266 esp32 ESP32 https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32/esp32-devkitc/user_guide.html ESP8266 https://esphome.io/components/esp8266/ https://lastminuteengineers.com/esp8266-pinout-reference/ https://lastminuteengineers.com/wemos-d1-mini-pinout-reference/