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ESP32 vacuum sealer controller built with a little help from AI. Closed-loop pressure control, WiFi parameter tuning from your phone
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ESP32 Vacuum Sealer Controller

greg-nuspelGreg Nuspel

A side-mounted LiPo battery board for Raspberry Pi Pico. USB-C charging, runs while charging, one button power control, breadboard friendly.
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Pico Battery Wing

elehobicaElehobica

Tri. Flop — A 30-Year-Old Guitar Amp Circuit That Stores Neural Network Weights
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Tri Flop A 30-Year-Old Circuit (Ternary)

alan-cyrAlan Cyr

A hardware token that can store multiple codes and has a replaceable battery
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Hardware TOTP Token

jacob-hJacob H

A project to create one of the smallest and most wearable Nixie tube watches, built around the Z5900M Nixie tube.
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UWO Z-01 - Nixie tube watch

denys-kardashDenys Kardash

An open-source NFC access controller you can build for about $10 in parts. Tap a card to unlock a door or a machine.
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Prismo

bsverdlyukb.sverdlyuk

A DIY internet radio and media center for blind and visually impaired users. Pi 4 + Arduino, controlled entirely by physical rotary knobs
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A headless Media Center for the blind with knobs

mcgutschymcgutschy

The Starship Galileo Gemini Class, SD 82 AI vetted & co Authored by the Gemini AI & Kimi 3 AI Graphene mass production-zero power Mini Moons
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The Gemini Protocols for Deep Space Travel

archer-quinnArcher Quinn

Qwirkle Limited Edition by Schmidt : tiles colors vanish in an ugly way. Can we repair them?
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Qwirkle Limited Edition repair

jyocijyoci

Exploration of calculators, their emulation, mechanical aspects such as pretty buttons and quirky displays
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Calculators

svofskisvofski

An educational proof of concept for a first person game engine, built within HyperCard 2.4.
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HyperCard First Person Game Engine

chris-tullyChris Tully

In this project, I convert a classic PCL86 single-ended tube amplifier design to operate with the less common PCL82 vacuum tube.
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DIY PCL82 Tube Amplifier, Single-Ended

mircemkmircemk

Differential I2C over Cat5e using the PCA9615. Two identical boards, one at each end, 100 m tested.
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i2c-over-rj45

rmingonrmingon

Modular platform where electronics snap together without wires.
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Molde

olegOleg

Lots of "Desktop CNC" machines can fit on a desktop. But do they fit _on_your_desk_? Like, between the stapler & paper tray?
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"Desk Accessory" CNC Milling Machine

paul-mcclayPaul McClay

"One LOW in 128 HIGH Lines — A Public Domain ASCII Memory Architecture"
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Single transistor holds full ASCII character

alan-cyrAlan Cyr

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