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ptrav

A bit of a nerd and a bit of a hacker. Writing software for living and for the hobby.

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My Projects

Filling the vacuum in high quality chording keyboards market.

Two-handed chording keyboard

Based on experience with the previous chording keyboard, fully 3D printable version with two joysticks.

Chording Hybrid Keyboard

Projects I Like & Follow

The 2016 Hackaday Prize

Conversion of dashboard from an old, Communist clone of the French Renault 12 (Dacia 1310)

Retro-futuristic automobile control panel

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.

RepRap HELIOS

Nicholas Seward

The 2017 Hackaday Prize

FREE and Open Source, Arduino Due based Telescope Control GOTO

rDUINOScope Boiana

Dessislav Gouzgounov

You read that right.

Open Source Freakin' Scanning Electron Microscope

Ergonomic QWERTY keyboard with Trackball

32xe

Andrey Kalmatskiy

Chinese "LM2596 DC/DC buck converter with voltmeter" + "some wires" + "Forth" = "programmable power supply"

Low-Cost Programmable Power Supply

The 2016 Hackaday Prize

Well, this is the next evolutionary step from when I first bought the Plab 2.5 spectrometer kit

DAV 5 UV/VIS Spectrometer

David H Haffner Sr

a 3D printed portable computer with a QWERTY keyboard

Portable Raspberry PI Zero

Revision 2 of tiny linear servo extender totally revorked and improved. Much easier to assemble, tight fit and robust design

3D-Printed Linear Servo Extender

The 567 tone decoder is perhaps most famous Phase Locked Loop (PLL) chip. This project looks at an Arduino software PLL.

Software Phase Locked Loop

Using Hardware and software to create the programming building blocks.

Rosetta stone of hardware programming

The 2016 Hackaday Prize

Type at 300 words per minute!

Steno Keyboard

Radomir Dopieralski

Security firm Praetorian outfitted drone with custom IoT sniffing hardware to learn how many connected devices are being used in Austin, TX.

Internet of Things Map Project

A Teensy 3.2 MIDI Synthesizer project for the vintage YM2149F software controlled sound generator chip.

YM2149 Synth

Online double pendulum designed to teach chaos by showing eventual divergence in multiple trials.

Chaos Pendulum

This is a friendly DIY Robot I made for a class at my university that uses Matlab over a closed connection to process images and sound

[Insert Robot name here] the Matlab Robot

The entire rocket and the fuel are all made of 3D printed PLA.

Fully 3D printed rocket with 3D printed fuel

You need light to survive in Minecraft. So turn your torches on and off automatically using the BGM111, a phone and a few boxes of Legos!

Bluetooth + Smartphone Minecraft Mod

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