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Andy Geppert

Engineer, maker, fixer, flyer.

Minneapolis, MN
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16 Followers
42 Following
5 Projects
134 Likes
andy-geppert
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This user joined on 01/01/2017.

6.1k
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Weave your own Core Memory to learn and hack!
Project Owner Contributor

Core 64: Interactive Core Memory Badge

andy-geppertAndy Geppert

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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

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Core16 makes it easier to get started weaving your own Interactive Core Memory. You can do a lot of fun stuff with it after it is assembled!
Project Owner Contributor

Core16: Interactive Core Memory Made Smaller

andy-geppertAndy Geppert

160
5
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Rotary phone dialer add-on!
Project Owner Contributor

Supercon 2022 Badge Rotary Phone Dial

andy-geppertAndy Geppert

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Easily add a small OLED screen to your project or electronic badge to display instructions and information!
Project Owner Contributor

SAO OLED

andy-geppertAndy Geppert

4.6k
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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

1.2k
13
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"Etch A Sketch" style frame and function for the badge from Hackaday Supercon 2023
Project Owner Contributor

Hack A Sketch

jeremygeppertjeremy.geppert

Things I've Built

Mountain Bike

Hovercraft

32.4k
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A Raspberry Pi Cyberdeck
Project Owner Contributor

The Black Beast

lord-of-all-thingsLord Of All Things

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PERSEUS-9 is a die-cast aluminum housing mobile computer having dual 6502 CPU, 48 keys and 40 x 7 LED character display.
Project Owner Contributor

PERSEUS-9 homemade mobile 6502 computer

mitsuru-yamadaMitsuru Yamada

15.5k
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After three years... Supercon again! And the new badge too!
Project Owner Contributor

BADGE FOR SUPERCON.6 / November 2022

voja-antonicVoja Antonic

11.9k
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An Open Source Ethernet controllable stepper motor. Easy interfacing with JSON and UDP from any device on the network in any language.
Project Owner Contributor

Ethersweep

jan-neumannJan Neumann

9.4k
49
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Saving the planet, one obsolete chip at a time
Project Owner Contributor

ABN6502 SBC R1

anders-nielsenAnders Nielsen

6k
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This is the starter guide for the 2022 Hackaday Superconference badge, designed by Voja Antonic.
Project Owner Contributor

2022 Hackaday Supercon 6 Badge Guide

lutetiumLutetium

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6502 based learning in a familiar form factor
Project Owner Contributor

65uino

anders-nielsenAnders Nielsen

3.9k
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MRC6502 is a fantastic opportunity to learn more about digital electronics and 6502 assembly programming... step by step.
Project Owner Contributor

MRC6502 - Modular Retro Computer

padnestpadnest

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Boo buttons, yaay sharpies
Project Owner Contributor

Supercon 2022 Badge Card Reader

zakqwyzakqwy

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A fully open-source digital power electronics technology framework for fast prototyping switch-mode power supplies
Project Owner Contributor

DIY Power for all - OwnTech

jean-alineiJean Alinei

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15
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Musical instrument without batteries!, created with the motor of a PC CD player and a piano generated with the incredible 555
Project Owner Contributor

Acordeonador

bernaBerna

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Easy-to-build 68020 single-board computer - utilizing conventional components only and designed for simplicity and ease of understanding
Project Owner Contributor

68020 minimal homebrew computer

stevenSteven

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14
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A sensor-packed "smartwatch" afflicted with poor wiring design choices, zero water/dust resistance, and massive feature creep.
Project Owner Contributor

IP00-minus

robRob

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New developments in planetary position calculation applications and external PROM modules for PERSEUS-9.
Project Owner Contributor

PERSEUS-9 2023 Update

mitsuru-yamadaMitsuru Yamada

1.7k
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My not so fancy example of Magnetic Core Memory using fairly cheap cores and free parts from my junk box.
Project Owner Contributor

Magnetic Core Memory The Dr Cockroach Way

dr-cockroachDr. Cockroach

1.4k
193
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Visually display the number of Bluetooth devices in your proximity
Project Owner Contributor

Bluetooth Devices Visualizer

jeremygeppertjeremy.geppert

1.2k
13
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"Etch A Sketch" style frame and function for the badge from Hackaday Supercon 2023
Project Owner Contributor

Hack A Sketch

jeremygeppertjeremy.geppert

1.1k
21
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Cyberdesck based on old Commodore 64 SX based on Raspberry Pi.
Project Owner Contributor

Raspberry SX

david-tillemansDavid Tillemans

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Bits

Mitsuru Yamada wrote 08/18/2023 at 00:09 • point

Thank you for liking my #PERSEUS-9 2023 Update! I summarized the development contents that improved the completeness of this computer system during the past year.

  Are you sure? yes | no

Andy Geppert wrote 08/18/2023 at 01:15 • point

Are you planning to attend Supercon with the PERSEUS-9 this fall?

  Are you sure? yes | no

Anders Nielsen wrote 05/17/2023 at 15:26 • point

Thank you for liking and following my #65uino project!
I'm trying to keep the current version a bit artificially constrained, but I might try to connect the usual R/W line for the 5V programmable EEPROMS. Of course that won't do much for the 13.5V erase voltage EEPROMS like the w27c512. 
Of course my "full size" 6502 computer, the #ABN6502 SBC R1  does a lot more than the 'uino :)

  Are you sure? yes | no

Mitsuru Yamada wrote 10/15/2022 at 05:09 • point

Thank you for liking and following my #PERSEUS-9 homemade mobile 6502 computer ! For the past two weeks, I have been closely examining the behavior of the on-board interpreter. Today, I feel honored to receive the news of the Cyberdeck Contest award.

  Are you sure? yes | no

Dr. Cockroach wrote 11/03/2021 at 19:16 • point

Thank you for the Like and follow of #LLTP - Light Logic Transistorless Processor 

  Are you sure? yes | no

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