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Andy Geppert

Electronics hobbyist, maker, fixer, flyer.

Minneapolis, MN
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39 Following
2 Projects
58 Likes
andy-geppert
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This user joined on 01/01/2017.

3.1k
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What happens when you overlay LEDs with core memory?
Project Owner Contributor

Interactive Core Memory Shield Using LED Matrix

Andy GeppertAndy Geppert

1.6k
31
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Interact with Core Memory to explore, learn and inspire.
Project Owner Contributor

Core 64: Interactive Core Memory Badge

Andy GeppertAndy Geppert

4.5k
165
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Let's talk puzzles and the DEF CON 27 badge! Join this team to share and discuss.
Project Owner Contributor

DEF CON 27 Official Badge Hacking

LutetiumLutetium

Things I've Built

Mountain Bike

Hovercraft

69.6k
933
59
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IP over 430MHz Ham Radio, up to 500kbps, 20W RF. Extension for HSMM-Hamnet-AREDN. 100% open-source.
Project Owner Contributor

NPR New Packet Radio

f4hdkf4hdk

35.5k
480
36
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I didn't have enough to buy a Lab Bench PSU... So I made one.
Project Owner Contributor

OPEN Power

John LoeflerJohn Loefler

25.9k
266
25
248
A 252 electromagnet-matrix that controls Ferrofluid
Project Owner Contributor

Fetch: A Ferrofluid Display

Applied ProcrastinationApplied Procrastination

21.9k
257
48
229
Small and powerfull controlling unit powerd from USB-C-PD
Project Owner Contributor

USB-C-PD Soldering Pen for Weller RT Tips

Thomas LeputschThomas Leputsch

21k
211
53
178
An digital clock made out of 144 7 segment displays
Project Owner Contributor

7 Segment display array clock

FrughaFrugha

14.2k
282
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241
Open-source wire bending CNC machine for wires at 1mm and less in diameter.
Project Owner Contributor

Precise Wire Bending Machine

Jiří PrausJiří Praus

5.2k
85
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A Li-ion battery pack which can be charged from an 18V solar panel and can output 230VAC through an Inverter.
Project Owner Contributor

Backup Battery Pack

Anuradha GunawardanaAnuradha Gunawardana

4.3k
24
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Using a 1979 Ariens chassis, but replacing the small engine with a DC motor
Project Owner Contributor

Electric Snowblower Conversion

RyanRyan

3.6k
38
22
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ATTiny841 based wrist watch for 9 year old
Project Owner Contributor

Vlad's Round Watch

Chris O'RileyChris O'Riley

3.5k
58
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A custom designed retropie / emulation handheld.
Project Owner Contributor

simplyRetro Z5

Gerrit GGerrit G

3.5k
811
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Dead bug style LM386 audio amp circuit inside a human figure made of copper wire.
Project Owner Contributor

Audio Man Circuit Sculpture

Dean SegovisDean Segovis

3.2k
27
19
27
A new take on the LED coaster with wireless power charging and supercapacitor energy storage.
Project Owner Contributor

LED Coaster - Wireless/Batteryless

Scott ClandininScott Clandinin

3k
19
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Classic CPU as an "Arduino style" microcontroller
Project Owner Contributor

6502 retro controller board

Marek WięcekMarek Więcek

2.7k
30
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USB powered and easy upgradable SAM D11 based controller
Project Owner Contributor

DIXI RT - USB soldering pen for WELLER RT

bobriciusbobricius

1.5k
21
4
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hack some standard replacement batteries for my mobile laboratory
Project Owner Contributor

mobile power supply

TomTom

881
14
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8
A 3D Printable Model for a TS100 case
Project Owner Contributor

TS100 Custom Replacement Case

BogdanTheGeekBogdanTheGeek

599
9
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Retro computer utilizing classic MOS6502 microprocessor.
Project Owner Contributor

6502 retro computer

Marek WięcekMarek Więcek

360
15
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Use a 33 cent microcontroller to convert an SPI data stream into a stream of pulses that can control a string of NeoPixels
Project Owner Contributor

SPI to NeoPixel Adapter

Wayne HolderWayne Holder

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