Setup ESP8266 on Mega with build-in wifi | macOS

How to flash the firmware a ESP8266 on a Mega2560 + WiFi R3 ATmega2560 + ESP8266.

Thanks to and useful links:
- https://www.instructables.com/id/Arduino-MEGA-2560-With-WiFi-Built-in-ESP8266/
- https://medium.com/@gtgunarathna/mega-wifi-r3-atmega2560-esp8266-web-client-troubleshooting-fbfae9d15c26

== Step 4:
Esptool: https://github.com/espressif/esptool (see link for download and installation)
Firmware I used: https://github.com/Edragon/esp_firmware/tree/master/Firmware/AT-other/AI-THINKER/At_firmware_bin1.54

== Step 5 command:
python esptool.py --port [the usb name] write_flash 0x00000 [At firmware location]

== Step 8:
WiFiEsp library: https://github.com/bportaluri/WiFiEsp

Видео Setup ESP8266 on Mega with build-in wifi | macOS канала Arwin van der Velden