A cardboard monster head dispenses Halloween candy when you press its nose. An ESP32 runs the show, dispensing candy via a stepper motor with a finger wheel. An IR break beam detects when candy is dispensed, triggering flashing lights and sounds. The project's code is shared in a GitHub repository.
Source: https://hackaday.com/2026/11/06/automate-that-halloween-treating. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
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A Fluke Model 407 high-voltage power supply gets rescued from the scrap heap and diagnosed on video. Mr Carlson powers it up safely using an isolated transformer and a current-limited variac, avoiding the risk of full power on old components. The vacuum-tube-and-circuit-board unit shows no visible damage but its output misbehaves. Using the original schematics, he traces the fault to a single faulty capacitor in the feedback loop that keeps output voltage constant.
Like some of you, we have several kitchen appliances with integrated digital timers.
SparkFun introduced two new development boards called IoT RedBoard, both based on the ESP32-P4 v3.x (ESP32-P4X) and compatible with the Arduino UNO R3
A maker transforms a Raspberry Pi gaming handheld into a DIY cyberdeck with GPS, Wi-Fi, a camera, and an ESP32. See the community build.
It was a little too good at what it did, though.
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