ESP8266 Community Forum

Hi, I'd like to use my esp8266 based NodeMCU to flash new firmware on my Atemga32 chip in another device. Both the Nodemcu and the Atemga32 device have MOSI / MISO & CLK pins, as well as forums showing the atemga32 device can be flashed with a generic USB programming dongle, so believe this should be possible if only i could figure out whether the NodeMCU can be told to be a programmer..

I have the pinout connection for both, just not sure what sketch / software / config I should flash on the ESP8266 to allow me to then use it as a serial programmer for the external device.

Any advice / links / suggestions welcome, thanks