I bought one of these: ATmega328 with Arduino Optiboot (Uno) - DEV-10524 - SparkFun Electronics and built the circuit around it on a breadboard to try it out. The power works fine, multimeter gives me 5V out where it's supposed to, no shorts, etc. I use a CA-42 for USB to serial interfacing and it w…

Troubleshooting ATmega

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