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Justin Davis

ph.d. electrical engineer - embedded systems developer

Toledo, Ohio
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9 Followers
24 Following
10 Projects
justin-davis
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This user joined on 09/28/2015.

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A very small fully-functional interface for an Arduino Due emulating an Altair 8800
Project Owner Contributor

Altair 8800 front panel Ardiuno shield

justin-davisJustin Davis

8.2k
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A breadboard-able computer which uses only a single instruction - MOVE
Project Owner Contributor

One-instruction TTL Computer

justin-davisJustin Davis

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Microcomputer that runs without a CPU
Project Owner Contributor

GTXL Gigatron clone computer with keyboard

justin-davisJustin Davis

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Connecting a floppy drive emulator (Gotek) to the Atari ST with a few small adapter boards.
Project Owner Contributor

Atari ST Floppy Drive Emulator Adapters

justin-davisJustin Davis

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Incorporates an improved minimal-chip One Instruction CPU with a hardware-driven VGA output
Project Owner Contributor

One instruction VGA computer

justin-davisJustin Davis

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Remake of the WOPR computer "face" from the movie Wargames
Project Owner Contributor

Wargames WOPR prop PCB

justin-davisJustin Davis

View all 10 projects

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Let's solve this badge! Join this team to share and discuss the DEF CON 26 Badge
Project Owner Contributor

DEF CON 26 Official Badge Hacking

lutetiumLutetium

51.6k
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Where DIY DIP/SSI/MSI CPU makers meet and discuss other TLA (three letters acronyms)
Project Owner Contributor

Hackaday TTLers

yann-guidon-ygdesYann Guidon / YGDES

171k
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Developing a small fuelless microwave thruster
Project Owner Contributor

EMDrive/satellite

paul-kocylaPaul Kocyla

88k
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Just because! A home computer without microprocessor
Project Owner Contributor

Gigatron TTL microcomputer

marcel-van-kervinckMarcel van Kervinck

51.6k
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Where DIY DIP/SSI/MSI CPU makers meet and discuss other TLA (three letters acronyms)
Project Owner Contributor

Hackaday TTLers

yann-guidon-ygdesYann Guidon / YGDES

44.7k
1.8k
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505
RepRap HELIOS is a highly printable SCARA 3D printer. It has an outrageous print area and can print on almost any flat surface.
Project Owner Contributor

RepRap HELIOS

nicholas-sewardNicholas Seward

39.2k
157
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Retrocomputer built from TTL logic running CP/M with no CPU or ALU
Project Owner Contributor

Novasaur CP/M TTL Retrocomputer

alastair-hewittAlastair Hewitt

36.1k
548
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A digital clock built with Diode-Diode Logic (DDL), a quirky new logic family using only common diodes and passive components.
Project Owner Contributor

The Diode Clock

ted-yapoTed Yapo

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The DIY laptop built entirely from PCB
Project Owner Contributor

ELLO 2M

knvdKn/vD

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Science in your hand. A pocket-sized instrument capable of visualizing and exploring the world around you. (Iteration 8)
Project Owner Contributor

Iteration 8

peter-jansenpeter jansen

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4.8k
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Measure brain activity with light
Project Owner Contributor

fNIR Brain Imager

jeremy-ruhlandJeremy Ruhland

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1.9k
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This project describes the use of Raspberry Pi as an IoT connected vital signs monitor. The HealthyPi HAT for Raspberry Pi used.
Project Owner Contributor

Connected Health: Open source IoT patient monitor

ashwin-k-whitchurchAshwin K Whitchurch

19.5k
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A microprocessor built with TTL chips. In one square inch.
Project Owner Contributor

1 Square Inch TTL CPU

roelhroelh

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ED-64 will be an 8-bit computer built with discrete components, and will feature a ferrite core memory (documented as a separate project).
Project Owner Contributor

ED-64: A discrete 8-bit computer

andrew-starrAndrew Starr

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How many TTL ICs do you actually need to output a VGA image?
Project Owner Contributor

World's Simplest TTL VGA circuit?

george-footGeorge Foot

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4.9k
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Open source universal infrared remote control based upon the STM8S microcontroller with oooodles of connectivity options.
Project Owner Contributor

OpenIR - Infrared Remote Control

nevynNevyn

13.3k
79
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A minimalist computer for a minimalist language
Project Owner Contributor

MENTAL-1, a Brainfuck CPU

trey-keownTrey Keown

10.7k
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I have been exploring one bit CPUs. For the right application they may be worth knowing.
Project Owner Contributor

One Bit CPUs

agpcooperagp.cooper

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Test any electronic component with this pocket component tester
Project Owner Contributor

Component Tester in a Keychain

akshay-bawejaAkshay Baweja

9.6k
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3D Print yourself some of these magazines to keep your shop organized and boost your pick and place productivity!
Project Owner Contributor

SMD Component Magazines

robin-reiterRobin Reiter

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roelh wrote 10/18/2019 at 06:59 • point

Hi Justin, thank you for following the #1 Square Inch TTL CPU  ! however, that project was completed, and action is now at #Kobold K2 - RISC TTL Computer.

  Are you sure? yes | no

Ed S wrote 07/20/2017 at 06:18 • point

Thanks for liking our #OPC-5 - a CPU for FPGA, in one page project!

  Are you sure? yes | no

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