For my first soldering project, I put headers on an Arduino Nano. The Nano comes with no pins, in case you want a low profile in your project. I got a good deal on a Nano IO shield and went to work.
Here is the result of about an hour of work. I used lead-free solder wire, and would have sworn there was something wrong with it. The tip of the iron was as the sharpest one I had, so I thought that would be best for finer work. In reality, however, it did not heat both the pin and the pad evenly, so the wire wouldn’t melt. I started to get some clues from other posts here, and I used a chisel tip instead. It worked well. I was still a little shaky, but I started getting into a grove by the end of it. One small step for man…
