Recent Projects

Simple Workaround with a 50:1 Gearbox Stepper and a Polaris Locator.

DIY Astro Tracker and Polaris Locator

I programmed a 4-relay ESP32 dev board to interface with standard overhead door button stations for a web controller.

ESP32 Shop Door Remote

nelmstr nelmstr

Arduino + Franklin oscillator

Turning Impedance into Frequency: An LC Experiment

Prototyping a modular Pi 5 handheld using a Razer Kishi & 3.5" LCD. Swappable OS for retro gaming or AI. Next challenge: 18650 power.

Modular Handheld Console with Raspberry Pi 5

daniel-baker Daniel Baker

We can see the EPROM eraser status in realtime! Which is the first bit change till the last bit change. Starting to End till all blank [FF]

UV-C LED Realtime EPROM eraser

Look mum, no ADC!

FPGA + 3 R + 1 C = MW and SW SDR Receiver

Alberto Garlassi

Adding a parasitic ESP32-based bridge to provide sensor data for Homeassistant through Esphome

Retrofitting an old radioclock

Single Board Computer with MAX10 FPGA using VHDL. Both Zilog Z80 and Intel MCS-51 implemented in DIP40 size board. No external memory needed

Z80 - MCS-51 - MAX10 FPGA - VHDL

Yet another project trying to generate VGA signals using small avr mcu.

VGA with Arduino

A feasible & commercialized smart lock solution that unlocks via NFC-enabled smartphones, no built-in battery required.

Battery-free NFC Lock

A simple yet effective method to measure the SOC of non rechargable batteries.

1.5V Alkaline Battery SOC Measurement Technique

sagar-001 Sagar 001

Reception, preparation, and use of an XH7115C (VMC210C) CNC machine.

Import CNC machine

austin-macdonald Austin MacDonald

Python and Rust tools to help you or AI route your KiCad PCB

KiCad Automated Routing Tools

ESP32 Based GPS Navigator with OSM offline maps.

IceNav

jordi-gaucha Jordi Gauchía

Adding color to home lamps

Upgrading IKEA Lamps with WLED

Simple MOSFET-Driven DC Pump Driver

DC PUMP DRIVER With Custom PCB Breadboard

arnov-sharma Arnov Sharma