I looked around, but I could not find a clear tutorial on how to do this, or even if it is possible. I would like to use serial communication to upload a sketch to one Arduino Uno/Mini from another Arduino Mega. I found tutorials on how to upload bootloaders like this, but I want to upload a sketch …

Program Arduino from Arduino

CrossRoads May 7, 2014, 7:34pm 4

Here's a good way - program a sketch stored on SD card.

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