Adafruit has announced the availability of the ESP32-S2 WROOM Module with PCB Antenna equipped with 4 MB flash and available to purchase priced at just $3.25. The new module is the single-core 240 MHz ...
There’s no shortage of Geiger counter projects based on the old Soviet SBM-20 tube, it’s a classic circuit that’s easy enough even for a beginner to implement — so long as they don’t get bitten by the ...