I was able to upload and run programs to my Arduino Mega 2560 with no problems while prototyping, but when I connected my Pro Mini to my SparkFun FTDI breakout board and hooked it up to my computer, I would get this error when it attempted to upload my sketch: avrdude: stk500_program_enable(): unkn…

3.3V Pro Mini not uploading sketches via SparkFun FTDI Basic Breakout

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