Recent Projects

What if you could run an entire automated greenhouse, a security network, and a heavyweight AI Edge Cluster without plugging into the wall?

Springhouse

Raspberry Pi Compute Module 4 carrier that plugs directly to HDMI port.

Raspberry Pi CM4 TV Stick

A professional-looking VFO for your radio projects without spending a fortune on touchscreen, rotary encoder or complex hardware.

The Ultimate Smartphone VFO ESP32 & Si5351 Wireles

mircemk mircemk

With an accumulator to store one operand. Do binary addition (and subtraction) with the 8-bit Workbench™ and Binary (or Hex) Keyboard.

Byte Adder Subtractor: an 8-bit Full Adder

A non-intrusive GPIB pass-through adapter exposing all bus lines

GPIB Tap

dethmer-kupers Dethmer Kupers

A 64-knob virtual-analog synthesizer on Raspberry Pi Pico 2 — fully tactile, no menus, real-time control.

64-Knob Virtual-Analog Synth on Pico 2

hiroyuki-oyama Hiroyuki OYAMA

Read/Write Modbus RTU (RS485) via Ethernet and WiFi use ESP32

Modbus RTU to Ethernet Gateway Using ESP32 and LAN

BK7258 is connected to 2x2.16" 480x480 AMOLED, one L1+L5 frequency band GPS module, and one SIM7670G 4G module. And 4 sensors.

Triple M33 low-power portable display

eleclab ElecLab

LoRa mesh weather station: Raspberry pi Pico W ingests UDP, sends via Meshtastic to Pi, stores in SQLite, syncs to AWS with retries

Meshtastic Weather Station

brahm-schultz Brahm Schultz

Open-source mission data contracts for small spacecraft: telemetry, commands, payload data, storage intent and downlink assumptions.

OrbitFabric

fabrizio-rovelli Fabrizio Rovelli

Welcome to the most painfully niche thing I've created.

Solar Solenoid Controller - WellWatch

jesse-farrell Jesse Farrell

A low cost robotic hand for robots and humans

Yeah Robotic Hand (formerly Rebelia)

vittorio-lumare Vittorio Lumare

Multiple ESP32 CAM and PI to record timelapses over longer periods

ESP32 Cam timelapse

bjarkechristesen

It was always annoying to guess at the brightness of an indicator and calculate the LED resistor

Why I built an LED luminosity tuner

10,240 independent oscillators · 1-sample latency · 0.001 Hz resolution

FPGA Spectrum Engine

tsuneoohnaka Tsuneo.Ohnaka

Designed for reliable recovery, safe shutdown, smart restart, stable power delivery, watchdog recovery, and per-cell battery monitoring.

A UPS HAT for Raspberry Pi You Can Truly Rely On

alireza-noferesti Alireza Noferesti