Close

Recent Projects

possibly the world's first pencil plotter
Project Owner Contributor

AutoGraph

john-opsahlJohn Opsahl

Celebrating 50 years of Tiny Basic by implementing a custom micro-coded 16/32-bit CPU that executes it directly (up to 100MHz)
Project Owner Contributor

CPU running Basic

zpekiczpekic

Circuit sculpture: a table-top satellite model that shines and measures light (and is environmentally friendly).
Project Owner Contributor

A little CSK satellite for a bright workstation

andrea-consoleAndrea Console

Rust espresso control. RP2040 PIO offloads pressure & flow, while Embassy runs PID & Wi-Fi on a single Pico W.
Project Owner Contributor

oximite

pchalapchala

A Raspberry Pi PICO powered Synth using CD74HC4067 Multiplexer
Project Owner Contributor

Pi Synth

arnov-sharmaArnov Sharma

An artificial jellyfish on CYD (Cheap Yellow Display, ESP32).
Project Owner Contributor

Denki Kurage / Electric Jellyfish

likeabloblikeablob

A relay-based adder that performs arithmetic in balanced ternary trits. It can add two numbers in the range −13 to +13 per operand.
Project Owner Contributor

A Balanced Ternary Adder Built from Relays

jeroen-brinkmanJeroen Brinkman

See logic happen. This 3-bit relay adder uses diode grids and relays to show the steps of binary addition
Project Owner Contributor

A 3-Bit Visual Binary Adder

jeroen-brinkmanJeroen Brinkman

TritBits shows the working of Binary coded numbers, binary 2-complement coded negative numbers and balanced ternary numbers.
Project Owner Contributor

TritBits

jeroen-brinkmanJeroen Brinkman

This is a power plant design Boyscout logic and high school math (Particles removed desalination available R O ready water is end product)
Project Owner Contributor

Tidal Pulse Tower

alan-cyrAlan Cyr

Using 5 cheap BJT (BC547) I built a small, cheap and easy class C QRP amplifier for HF bands.
Project Owner Contributor

1-30 MHz 0.5-1W class C amplifier

guidoGuido

Lilka: DIY ESP32-S3 Learning Console with NES Emulation & Lua Support
Project Owner Contributor

Lilka

bsverdlyukb.sverdlyuk

I bought a broken function generator from a scrap yard for ₹10 and I'm trying to repair and understand how it works.
Project Owner Contributor

Reviving a Scrap Yard Function Generator

santanu-roySantanu Roy

A studio ghibli inspired simple add on offering you candy
Project Owner Contributor

Soot Sprite Simple Add-On SAO

davedarkodavedarko

My idea is to build a small solar panel using 24 power transistors in a TO3 package. To do this, I'll uncover the transistors.
Project Owner Contributor

SOLAR BJT PHONE CHARGER

maxMax

Portable SMD Electronic Components Counter
Project Owner Contributor

ReelTrack

serhiiSerhii

Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2026 Hackaday