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Eric Ljungquist

Hobbyist interested in electronic hardware design with a minor interest in doing software projects from time to time.

Pittsburgh, PA

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This user joined on 01/26/2022.

My Projects

My own version of a Simon type game in business card form.

PCB Business Card: Simon Game

Eric Ljungquist

An asynchronous serial transmitter using only mosfets, resistors, capacitors, and diodes as building blocks.

Serial Transmitter Using Discrete Parts

Eric Ljungquist

A script to generate project boxes in JSCAD.

JSCAD Project Box Generator

Eric Ljungquist

A discrete component solution to convert 4-bit binary to 7-segment display signals.

Binary to Hex 7-Segment Decoder w/ Discrete Parts

Eric Ljungquist

Adding a 12 volt pump kit and a battery to an old garden sprayer.

Battery Powered Mobile Washer

Eric Ljungquist

A shield that adds a 40 pin ZIF Socket to an Arduino Mega 2560.

Arduino Mega 2560 ZIF Socket Shield

Eric Ljungquist

Projects I Like & Follow

Follow for the 'Hacklet' and latest news about hackaday.io

Hackaday.io Project

Official Hackaday Prize Entry

An affordable Arduino controlled multipurpose laser exposing device. Use it for SLA Printers, PCB Exposing, Laser Harp etc.

OpenExposer

Multi-year always-on LED replacements for gaseous tritium light sources

TritiLED

Hackaday Prize 2019

bringing additive manufacturing to the next level

prism laser scanner

This PCB footprint allows you to use 3mm x 6mm edge of PCB and a SOIC-8 clip as a cheap and space-efficient connector

SOICbite Programming/Debug Connector Footprint

<1.5µA current consumption when continuously on, optional flashing mode

Ultra low power LED

ATtiny45-based Ripoff of Ted Yapo's TritiLED

ATtiny45 EverLED

Elliot Williams

I still can't believe it's working.

A different kind of programmable LED

The 2017 Hackaday Prize

A simple concept to localize a robot within some few meters with help of some external references (mirror)

Low cost Robot Localisation System (LRLS)

Two 1.3" low cost 240x240 LCDs are used to create a 3D Display that needs no glasses.

DIY Arduino Parallax 3D Display

Madaeon Madaeon

A few months ago I discovered "How to Build a Digital Computer That Works" and got excited about the project.

PaperClip Computer

Marcelo Marcelo

This kind of bus is made up of one programmable Master - ATmega8 and 3 ( max. possible 255 ) Slaves - ATtiny13 parallel connected to master.

3-Wire Bus

Want to get a perfect cover photo for your project page?

HACKADAY.IO COVER PHOTO TEMPLATE

I followed a build from the DIY Perks YouTube channel to create my own high quality microphone

High Quality DIY Microphone

2021 Hackaday Prize

Using a mix of traditional painting materials and modern technology to create artworks that display and/or respond to data.

Responsive Paintings

Hackaday Prize 2019

A wood paint that is cheap, durable and easy to make at home with readily available and "non toxic" material

Durable Wood paint

Nathann Nathann

Visualize 'em if you got 'em!

Music Stem Visualizer

Gina Collecchia

Bits