Hardware Hackers DIY Pick

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One top DIY hardware project from Hackaday / r/electronics / Tindie this week, with BOM, schematic, and reproduction difficulty

Hardware Hackers DIY Pick07/06/2026, 01:22:36

CP/M on an 8-pin chip for $26 — meet the MCL8080+

Ted Fried's MCL8080+ squeezes a complete Intel 8080 emulator into an ATtiny85 (8 pins, 512 bytes of RAM) by offloading memory, storage, and I/O to a Teensy 4.0 over SPI, then adds a 128-byte direct-mapped cache inside the ATtiny85 to make it fast enough to boot CP/M at near-Altair 8800 speed. The full build — schematics, KiCad PCB, Gerbers, and both firmware files — is MIT-licensed on GitHub. BOM totals ~$26–30, all through-hole, Intermediate difficulty.

Hardware Hackers DIY Pick31/05/2026, 01:29:25

A $15 ESP32 board + one SOIC8 chip = 13-platform retro handheld

DynaMight1124's CYD Emulator Station upgrades the $15 Cheap Yellow Display (ESP32-2432S028) into a 13-platform retro game handheld by soldering a PSRAM chip onto an unpopulated SOIC8 footprint and running Retro-Go v1.46. $30–45 BOM, Intermediate difficulty, weekend-build.

Hardware Hackers DIY Pick24/05/2026, 01:19:22

$50 PVC turbine produces 200W from a 3-meter water drop — no concrete, no permits

Daniel Connell's Low Head Turbine turns a 3-metre head of flowing water into ~200 W DC using a $30–50 BOM of PVC fittings, a 120 mm PC fan, and a scavenged hoverboard hub motor — no PCB, no firmware, no soldering required.

Hardware Hackers DIY Pick17/05/2026, 22:56:14

This weekend's build: Linux terminal inside a clamshell evening bag

Builder cc (bossbratox) packed a Raspberry Pi 3A+, touchscreen, and a full Python TUI OS into a pink clamshell purse — no soldering, $274 BOM, MIT-licensed, 1–2 day intermediate build.

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