
Andrew Kohlsmith
14.7K posts

Andrew Kohlsmith
@akohlsmith
A herd of kids and an electronics/sw consulting firm. Moved to @[email protected] September 2023.




I want one of my PCBs to be able to report its revision number to the MCU. I can dedicate exactly one pin to this task. What is the cheapest and easiest way to do this? Let's assume 20 revs (lol). First idea that comes to mind is a simple voltage divider. Might be good enough





ハンダボールリフロー、ステンシル無くても出来て楽。一応計算して玉置いてるが、パッドの穴に吸われる分が分からなすぎるので結局は感


An article from the 90s explaining how in the 1980s, personal computers changed the dynamic of college vs high school workers. College grads learned how to use PCs and grew wages faster Mind you, this was when interest rates were 15pct, white collar unemployment was the highest it’s been any non covid year, general unemployment was 10pct, there was a recession, 18pct mortgages, and the start of the savings and loan industry collapse. The economy was a mess. Except it was the start of the “digital revolution “ which lead to change. Here we are at the early days of the AI revolution. I think it will be very analogous to what happened back then. If you think learning how to use Clause seems daunting, imagine being 50 yrs old in 1983, not knowing how to type, using a 1.0 key adding machine with a tape roll to do all your work as an analyst and realizing you had to figure out how your brand new IBM PC and lotus 1-2-3 worked. Or having only used a typewriter your entire career , then having to learn the new PC and WordStar. Trust me. WordStar key combinations were far harder to learn than telling Claude what you want done Lots of people couldn’t figure it out. Those who did were more productive Ctrl QA with AI nber.org/digest/sep97/h…








The PCBs are in Canada. I repeat, the PCBs are in Canada. I can't wait to figure out how to assemble 45 of these things and see what mistakes I made.




the only way to learn how to do anything is to be bad at it. you can learn anything in two weeks. this morning i had no idea what an LDO was, or how routing was done. this is the easiest shit i have ever done. a child could do it











