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Zimmiebob_zim@infosec.exchange
Apr 4, 2026, 4:14 PM
I have a small new project which needs a little compute and a Bluetooth transceiver, so I picked up a pack of ESP32-C6 “supermini” boards from a Chinese seller. I’ve seen boards like this pop up then disappear when the seller moves on to something else, but they also sent a solid documentation package. Schematics, board footprint, datasheets for all the chips down to the voltage regulator. They were something like $3.20 each.
The microcontroller world is so much better than it was when I was learning.
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Zimmiebob_zim@infosec.exchange
Apr 14, 2026, 10:48 PM
Test equipment is also so much better and more accessible. My multimeter has been annoying me (it takes *six* AA cells!), so I got a combination multimeter, signal generator, and oscilloscope for under $75 shipped. The oscilloscope part has limitations, but it’s extremely capable for the price. 50 MHz bandwidth on each of two channels, Y-T and X-Y modes, the ability to do math on the two signals and show the result as a third trace, live FFT, the ability to save a waveform for later viewing on a computer, all kinds of stuff.
Logic analyzers have also gotten really good and really cheap.
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