Recent Projects

A compact digitally controlled RF 1.8 to 28 MHz platform for HF amateur. DSP mod/demod, integrated FT8 codec and FT8 QSO management.

ESP32 HF QRP FT8 Transceiver

guido-iw5alz Guido - IW5ALZ

COMX-35F: a cycle-accurate 1983 COMX-35 (RCA 1802) rebuilt in SpinalHDL

Comx-35 computer in an FPGA

winston-lowe Winston Lowe

ASMR build of an ultrasonic radar using Arduino. Visualize objects in retro green graphics via Processing. Open source code included.

How to Make a DIY Arduino Radar (ASMR Build)

A 3-core board (MPU + MCU + FPGA) for a DIY desktop pick-and-place machine. WIP.

Xeltri — Pick-and-Place Control Board

shin-lin Shin Lin

An MC6803 (or 6801) Video Terminal taking full advantage of the Expanded Multiplexed Mode.

(Per)plexed 6803 Video Terminal

eric-poch Eric Poch

Build your own Leica M or Thread Mount Rangefinder now! (BOM typically under $250USD Potentially under $200USD)

The RGM-79 M Or LTM Digital Rangefinder Camera

An RS232C serial terminal using MC6802 & LED dot matrix display modules

6802 Serial Terminal

mitsuru-yamada Mitsuru Yamada

A compact smart heat-safety system that senses, analyzes, and alerts—turning real-time environmental data into actionable protection.

Heat Sentinel — Your Personal Heat Index Guardian

the-spanner The Spanner

A Starship - Graphene mass production - Water from Rocks + 200 new designs Co Authors - Gemini AI & Kimi 3 AI AI vetted zero Physics fails

The Gemini Protocols for Deep Space Travel

archer-quinn Archer Quinn

Wanted to build a rolling ball robot that was like the pop from Arc Raiders. This is my journey into making a prototype.

Rolling Ball Robot

A homebrew Z80 single board computer running RomWBW for RCBus systems.

E80C: Homebrew Z80 CP/M Computer

An open-source, all-in-one motion control board for desktop pick-and-place machines. RISC-V, Ethernet, USB-C, 7 stepper drivers on board.

PickOMatic V2 : RISC-V Pick and Place Controller

rmingon rmingon

Repairing and refurbishing an original ZX Spectrum issue 2

Original ZX Spectrum refurbished

compact, energy-efficient, battery-powered system for ePaper-based display of information gathered via Wi-Fi

Tinta - low power wireless epaper device

Crafting an electric plane with modern tools

AirCraft

The atomic force microscope for the masses

A working DIY quartz tuning fork AFM

luis-mestre Luis Mestre