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I keep seeing ultra-cheap soldering irons on AliExpress and wondered if any are good enough for beginners or hobbyists. To find out, I bought four different “bargain basement” irons with my own money and ran three simple but highly representative…
If you’ve ever tried to debug why a microcontroller won’t talk to a sensor, you’ll know how frustrating digital communications can be. I2C buses that refuse to acknowledge, one-wire devices that give nonsense readings, or peripherals that just appear dead,…
Introduction In a recent YouTube video I looked at how to improve the WIFI performance of cheap ESP32 C3 mini development boards from Ali Express and the results were really impressive, easily tripling the WIFI range with minimal effort. But…
