The 12 year-old and I built a QRP Labs QCX+ 20 meter ham radio tranciever over the weekend, and then we destroyed the ATMega328p controller chip. Which is a bummer since we can't ue the radio without it.
Key takeway really, really, really check super-careful for possible solder bridges.
I ordered a replacement controller, but here's the really cool things. We have Arduino's sitting around the house, and per N5BGZ's blog you can use them to program ATMega328 p controller chips! Even cooler, our (multiple) Arduino's contain ATMega328ps! So, we're going to canablaize one, and use another one to hopefully program it! Finger's crossed!
The Once and Future??? QCX+ Controller
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