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Justin Davis

ph.d. electrical engineer - embedded systems developer

Toledo, Ohio

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Following 33
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justin-davis

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This user joined on 09/28/2015.

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

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Altair 8800 front panel Ardiuno shield

justin-davisJustin Davis

A breadboard-able computer which uses only a single instruction - MOVE

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One-instruction TTL Computer

justin-davisJustin Davis

Microcomputer that runs without a CPU

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GTXL Gigatron clone computer with keyboard

justin-davisJustin Davis

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

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Atari ST Floppy Drive Emulator Adapters

justin-davisJustin Davis

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

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One instruction VGA computer

justin-davisJustin Davis

The 2017 Hackaday Prize

Simulating the functionality of memristors using off-the-shelf parts to form a neural network crossbar array

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Memristor Simulator for a Neural Network

justin-davisJustin Davis

View all 10 projects

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

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DEF CON 26 Official Badge Hacking

lutetiumLutetium

Where DIY DIP/SSI/MSI CPU makers meet and discuss other TLA (three letters acronyms)

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Hackaday TTLers

yann-guidon-ygdesYann Guidon / YGDES

The 2015 Hackaday Prize

Developing a small fuelless microwave thruster

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EMDrive/satellite

paul-kocylaPaul Kocyla

The 2017 Hackaday Prize

Just because! A home computer without microprocessor

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Gigatron TTL microcomputer

marcel-van-kervinckMarcel van Kervinck

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

The 2017 Hackaday Prize

RepRap HELIOS is a highly printable SCARA 3D printer. It has an outrageous print area and can print on almost any flat surface.

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RepRap HELIOS

nicholas-sewardNicholas Seward

Hackaday Prize 2019

Retrocomputer built from TTL logic running CP/M with no CPU or ALU

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Novasaur CP/M TTL Retrocomputer

alastair-hewittAlastair Hewitt

The 2016 Hackaday Prize

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

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The Diode Clock

ted-yapoTed Yapo

The 2016 Hackaday Prize

The DIY laptop built entirely from PCB

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ELLO 2M

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

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Iteration 8

peter-jansenpeter jansen

Official Hackaday Prize Entry

Measure brain activity with light

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fNIR Brain Imager

jeremy-ruhlandJeremy Ruhland

The 2017 Hackaday Prize

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

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Connected Health: Open source IoT patient monitor

ashwin-k-whitchurchAshwin K Whitchurch

Hackaday Prize 2019

A microprocessor built with TTL chips. In one square inch.

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1 Square Inch TTL CPU

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

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ED-64: A discrete 8-bit computer

andrew-starrAndrew Starr

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

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World's Simplest TTL VGA circuit?

george-footGeorge Foot

Official Hackaday Prize Entry

Open source universal infrared remote control based upon the STM8S microcontroller with oooodles of connectivity options.

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OpenIR - Infrared Remote Control

A minimalist computer for a minimalist language

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MENTAL-1, a Brainfuck CPU

trey-keownTrey Keown

I have been exploring one bit CPUs. For the right application they may be worth knowing.

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One Bit CPUs

agpcooperagp.cooper

Hackaday Prize 2020

Test any electronic component with this pocket component tester

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Component Tester in a Keychain

akshay-bawejaAkshay Baweja

3D Print yourself some of these magazines to keep your shop organized and boost your pick and place productivity!

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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.

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

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

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