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Interesting Projects I Don't Know How To Classify

Featuring an amalgamation of interesting projects. None of which I can properly categorize.

curated by bret-bernhoft

Bret Bernhoft

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Transmitting analog RCA video using a visible light laser. An optical data transfer challenge using custom analog circuits.

LYME

In this project I demonstrate an extremely simple Direct Conversion SDR Receiver based on the Microchip MCP2036 IC.

Simple MCP2036 SDR Radio - The Most Unusual SDR

mircemk mircemk

An industrial laser distance sensor based on the TF-Luna ToF module, successfully operating on a paving block production line.

Industrial Laser Distance Sensor

A modular, repairable remote station for amateur radio — open hardware, built almost entirely AI-assisted.

OE5XRX — Open-Source Modular Remote Ham Station

peter-buchegger Peter Buchegger

nRF52840-based flex PCB project with a shape of an octopus. Because why not.

A Flex-PCB Octopus

ESP32/PC SINAD indicator exploring filters, ADC limits, and practical receiver evaluation.

A DIY Digital SINAD/Waveform indicator on ESP32/PC

Signal Goblin is a custom handheld RF hacking and scanning device built entirely from scratch, designed and developed phone-only.

Signal Goblin

I build a model railway controller using analog PWM & block detection with manual and automatic control, and I evaluated the passing siding.

Model Railway Controller using Analog PWM

mitsuru-yamada Mitsuru Yamada

A beginner made a typing practice device.

Haptic Touch Typing Trainer Using Vibrating Keys

cuprice cuprice

Microcontroller non-intrusive realtime data visualizer

MCUViewer

piotr-wasilewski Piotr Wasilewski

A pneumatic, interlocked power drawbar for the PM‑25MV, built alongside a 1.8kW servo spindle upgrade and Mach4 CNC integration.

Custom Pneumatic Power Drawbar for PM‑25MV CNC Mil

gary-alose Gary Alose

An electronic candle that switches off when you blow on it. No moving parts, no microcontroller; just old-style analog circuitry.

Blow Out an Electronic Candle - The Analog Way

andrea-console Andrea Console

An outdoor, solar-powered cicada that harvests light through its wings and bursts into a buzzing call once enough energy is stored.

Screaming Solar Cicada

A DIY balcony ground station for radio science. Custom-built hardware for tracking satellites and deep-space RF experimentation.

B.R.A.S.S. (Balcony Radio And Satellite Science)

A modular 4S quadcopter test platform built around Pixhawk 6C for manual flight, autonomous control, telemetry, and airborne data collection

Pixhawk 6C UAV Data Collection Platform

rhea-rae Rhea Rae