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Andy Geppert

Electronics hobbyist, maker, fixer, flyer.

Minneapolis, MN

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This user joined on 01/01/2017.

My Projects

What happens if you mix core memory and LEDs?

Interactive Core Memory Shield Using LED Matrix

Hackaday Prize 2019

Interact with Core Memory to explore, learn and inspire.

Core 64: Interactive Core Memory Badge

Projects I Contribute To

Let's talk puzzles and the DEF CON 27 badge! Join this team to share and discuss.

DEF CON 27 Official Badge Hacking

Things I've Built

Mountain Bike

Hovercraft

Projects I Like & Follow

Collecting snippets that can quickly be copied to assemble a program for different sensors etc. Mostly about ESP8266/32 with Arduino IDE.

ESP cookbook

IP over 430MHz Ham Radio, up to 500kbps, 20W RF. Extension for HSMM-Hamnet-AREDN. 100% open-source.

NPR New Packet Radio

cordwood + smt + jewelry + blinkies + zinc-air batteries

cyborg ring

Hackaday Prize 2019

Small and powerfull controlling unit powerd from USB-C-PD

USB-C-PD Soldering Pen for Weller RT Tips

Thomas Leputsch

A 252 electromagnet-matrix that controls Ferrofluid

Fetch: A Ferrofluid Display

Applied Procrastination

Open-source wire bending CNC machine for wires at 1mm and less in diameter.

Precise Wire Bending Machine

The 2016 Hackaday Prize

Yet another Mi-Light bulb controller. This time with timers, 3rd party integration, and both RGB and CCT bulbs.

The Atomik Controller

Beautifully framed retro style pixel display made up of 512 LEDs arranged in individual pixel square cells

Pixel Display

Dead bug style LM386 audio amp circuit inside a human figure made of copper wire.

Audio Man Circuit Sculpture

ATTiny841 based wrist watch for 9 year old

Vlad's Round Watch

Using a 1979 Ariens chassis, but replacing the small engine with a DC motor

Electric Snowblower Conversion

Hackaday Prize 2019

A new take on the LED coaster with wireless power charging and supercapacitor energy storage.

LED Coaster - Wireless/Batteryless

Scott Clandinin

Classic CPU as an "Arduino style" microcontroller

6502 retro controller board

Hackaday Prize 2019

USB powered and easy upgradable SAM D11 based controller

DIXI RT - USB soldering pen for WELLER RT

The MK01 Palmtop is a small portable computer build inspired by scifi movies.

MK01 PALMTOP

retro 1 is a 6502 based homebrew computer inspired by the Apple I.

retro 1 6502 homebrew computer

Retro computer utilizing classic MOS6502 microprocessor.

6502 retro computer

The 2016 Hackaday Prize

Using two amateur radio-astronomy receivers separated by 300km's to make a stereo recording of jupiter's noise.

Stereophonic Jupiter

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Bits