Hi everyone, I developed a software application that sends serial data to an Arduino board to control an LED. I have two boards: an original Arduino Mega 2560 and a third-party Robotdyn Mega 2560 which uses the CH340 USB-to-serial chip. I used avrdude to upload the required sketch to both boards. A…

Robotdyn Mega2560 Mini Pro receiving signal problem

sonofcy July 31, 2025, 3:45pm 2

What happens if you just use the upload button in the IDE?

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