15 August 2026
I am nearly done making the hardware for the LTSDM project! I have one more connection to solder and I’m done (I had missed a connection and the continuity testing revealed they weren’t connected)! This is my best work yet — albeit still very novice.
For a while there, I noticed that the MISO and CS pins were continuous when checking with my multimeter (how you would check if your solder actually connects everything), but turns out I accidentally melted their wire loops on the top together through their plastic shielding, causing a short circuit. I have taken a decent amount of pictures, so I aim to post them afterward as well.
If I was teaching someone to solder, I would definitely buy a 30$ iron from Amazon first. It will be garbage, but will still allow the basics of soldering to be learned: tip care, and applying solder. This cheap iron would be great when learning tip care as it is a high chance one’s first tip will be oxidize to death. A good skill would be to learn how to revive an oxidized tip, and the functionality of tinning.
I’ve learned that soldering immediately adjacent is difficult without connecting them. Use more flux next time. Conversely, soldering bridging between two holes without a wire bridge is harder than I thought.
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