ESP8266 Community Forum

Does code exist to flash an 8266 device (specifically a ESP-WROOM-02) that runs on Arduino Mega? I'm not talking about using any IDE. I want my project to access the web and download a BIN file. Then using its interface with the WiFi module (UART, plus the control lines), I want the Mega to update the WiFi module directly, and then reboot it.

If the code does not already exist, where can I find documentation on exactly what the flashing programs are doing, so I can write the code myself?

Thanks in advance ...
Keith

why use an atmega where you don't have sufficient memory?
Use an ESP32 or ESP8266 module providing enough spiffs or littlefs for this task.
I don't know of any ready made source but most (if not all) esp flashers are open source and the protocol is documented here: https://github.com/espressif/esptool/wi ... l-Protocol