Recent Projects

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rhea-rae Rhea Rae

ZX Spectrum-compatible homemade retrocomputer based on Z80 CPU + discrete RAM and ROM + Raspberry RP2350B as ULA/chipset

Z80 + RP2350B ZX-compatible homebrew retrocomputer

Another homebrew computer based on the MSX standard. But it uses a Z380 microprocessor.

XRX - eXperimental Research X

marcellus-pereira Marcellus Pereira

A tiny FPGA-resident programmable sequencer that controls time and space directly

PTSG — Programmable Timing Sequence Generator

tsuneoohnaka Tsuneo.Ohnaka

R909-Tester is a low-cost workshop instrument platform based on the Raspberry Pi RP2040 zero

R909-Tester: A Modular RP2040 zero Instrument

This ESP32 project offers an incredibly efficient and affordable solution for smart home safety.

DIY ESP32 Telegram Flood Protection System

mircemk mircemk

looking to make a simple basic epaper watch with emphasis on low-power, low maintenance, and high hardiness.

Epaper watch

X/Y Plotter for high wattage UV LEDs to expose Cyanotype and other printing methods.

Analog Pixel Art: DIY Cyanotype Printer

A visual diagrammer that turns a node graph into a complete ESP32 Arduino/ESP-IDF web-server sketch. No toolchain.

ESP-GenUI

geoffrey-wells Geoffrey Wells

Moth is Sublime!!! Moth Text is a functional open source clone of Sublime Text!

Moth Text

9 volts, DIY motors, Arduino and DRV8833

Beginner "H2" line follower

gmez-mora-rodrigo-uriel Gómez Mora Rodrigo Uriel

A homemade heavy duty AZ/ALT mount for optical tubes and RF payloads

Telescope mount

Theory of mathematical logic

Gate Arithmetic

gmez-mora-rodrigo-uriel Gómez Mora Rodrigo Uriel

This is my homebrew multimeter design. Included modes are VDC, Ohms, and Capacitance.

Multimeter

Wiring them to existing RAM or UART sockets

Retro-fitting USB-FIFO modules

Bistable relay to control 12V device with around 1mA

RF433MHz bistable switch ON-OFF 12V module