It's amazing what you can do with an ESP32 (or two).

These are the commercial products I've replaced with ESP32-powered variants.

In October 2025, Qualcomm acquired Arduino. At that moment, shockwaves ran through the maker community worldwide. 'Arduino is dead,' 'This is the end of open source.' Reddit erupted, and the Hacker ...

Spectrum Control has introduced the Weinschel™ 8401-16E 16×16 Butler Matrix, a passive beamforming network for MIMO systems ...

Hacks don’t have to be practical but it helps if they are educational or clever or amusing, as [Ray Foss] demonstrates with his auto-docking Steam Controller. It’s an open-source web application that ...

The tape reader and amplifiers mounted with the other UE1 modules. (Credit: David Lovett, YouTube) After recently putting together the paper tape reader for his custom tube-based UE1 computer, [David ...

The Titan Mini is a smaller and somewhat cheaper version of the RA8P1 Titan board introduced in 2025 for AIoT applications and RT-Thread RTOS development. It still features a Renesas R7KA8P1 ...

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handheld-led-matrix-prototype A handheld game console prototype built around a Teensy 4.1 and a 64×32 HUB75 RGB LED matrix display. This project combines embedded systems, digital electronics, PCB ...