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ptrav

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This user joined on 04/03/2017.

My Projects

A Programmable Calculator from the USSR!

MK-52 Resurrect

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

A no-compromise, mechanical switch, 6-button chording keyboard, placed on the rear side of a tablet or a mobile phone.

Mechanical GKOS keyboard for phones and tablets.

GKOS Keyboard with mechanical switches and a joystick mouse.

GKOS Keyboard

Projects I Contribute To

A poket-to-laptop size microcomputer/programmable calculator, based on Terminal-BASIC

Terminal-BASIC programmable calculator

Andrey Skvortsov

Projects I Like & Follow

Hackaday Prize 2019

Opensource, inexpensive, mobile thermal camera for use in electronics, home inspection, non-contact thermometer, heat distribution and more.

Open Thermal Camera

An ESP8266 , a ILI9341 display, a few buttons to build a working ZX Spectrum

ZX Spectrum emulator with ESP8266

Combining a Z80 retro design with a modern PSoC CPU.

3-Chip Z80 Design

land-boards.com

Hackaday Prize 2019

A 16 bit computer with 20 address bits and video display, from just a few TTL and memory chips. Instructions resemble 68000 / PDP-11.

Kobold - retro TTL computer

Open-source and open-hardware custom scientific RPN calculator

OpenRPNCalc

Anton Poluektov

Add a second brain to your Arduino Mega

RetroShield for Arduino Mega

Flexapod (Servo-less Octapod)

Racing Spider

Experimental thumb keyboard, suitable for a hand held device

Thumb Keyboard

Like a HP-200LX but better - because 6502

ESP65 Pocket Computer: KIM-I/Apple-1/esp32

USB hid keyboard ... etc. for Raspberry PI is back in black, more beauty with more features ;)

mini (Pi)QWERTY USB keyboard II.

A poket-to-laptop size microcomputer/programmable calculator, based on Terminal-BASIC

Terminal-BASIC programmable calculator

Andrey Skvortsov

My custom split keyboard with integrated trackball and mouse buttons. Inspired by Ergodox and Keyboardio (https://shop.keyboard.io)

Split 58

Turn a SMART Response XE terminal into an 80's flavour pocket computer

SMART Response XE BASIC

Janus Jr is a small five-bar parallel robot designed to work with brushless motors, ESP32 (Arduino IDE) and 3D printed parts.

Five Bar Parallel Robot - Janus Jr

on rpi GPIO is enough signals to direct button matrix + 2" IPS 320x240 display.

#Zepir Raspberry Pi Zero mini computer

Instant gratification on the ESP8266 and ESP-32

Playing with MicroPython on the ESP

An ATmega 1284 based single board computer optimized for use with Terminal Basic.

Terminal Basic SBC

Use a C/C++ REPL to have an interactive development experience like microPython, but with no limitation in APIs!

Run A C/C++ Interpreter on Your ARM-based Board

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Bits

roelh wrote 06/10/2019 at 10:06

Hi Ptrav, thanks for following and liking the #Kobold - retro TTL computer !

Are you sure? yes | no