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agp.cooper

Pre-retirement - so too much time to spend on my hobbies!

Perth, Western Australia

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This user joined on 07/23/2016.

My Projects

A minimal 8 bit TTL CPU using 1970s technology

Weird CPU

Code for a spectrum analyzer.

Spectrum Analyser Code

I bought one of these for about A$32. Pretty good once you debug the demo code!

The WaveShare 2.9" e-Paper Display

TD4 CPU is a "4bit CPU that runs". It is very interesting for what can be done with so little.

TD4 CPU

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

One Bit CPUs

Taming the 74LS181 ALU chip

The 74LS181 ALU

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Projects I Contribute To

Hackaday Prize 2019

The reduction of strain-wave, but using a 'single' stage planetary gearset.

MPRT - Modified planetary robotics transmission

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

Hackaday TTLers

Yann Guidon / YGDES

The 2018 Hackaday Prize

Yet another manual programmer for old fuse PROM chips

PROMer

Yann Guidon / YGDES

Let's talk about radio.

RF Chat

Projects I Like & Follow

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

Hackaday TTLers

Yann Guidon / YGDES

Hackaday Prize 2019

The reduction of strain-wave, but using a 'single' stage planetary gearset.

MPRT - Modified planetary robotics transmission

If you have a lot of time, you can decide your position on Earth just using watches and eyes. Or RTC and LDR.

Light level geolocator

Project to build the first working replica of the 1987 Soviet concept design.

SPHINX (СФИНКС) Home Computer System

Writing on a whiteboard with stepper motors

Scribing Robot

A contactless encoder for the NEMA 17 stepper motor

AS5600 Stepper Motor Encoder

A 12-bit TTL-based Microprogrammed Computer

STUPID Computer

Everywhere i read people are excited to get mlx90640 working. here are examples using arduino w 800bytes ram, and 1k with calibrated DEG C

mlx90640 sensor works w 800 bytes

Suite-16 is a 16-bit cpu built entirely from TTL. It is a personal exploration of how hardware and software interact.

Suite-16

In this project, I make a big size 3d printer 400 x 400 x 400 mm for a collage project.

How to make a Big 3D Printer at Home | 3D Printer

Replica of the iconic Polish Z80 microcomputer from the late eighties.

MIK CA80 microcomputer

Making a book unique, even though I absolutely can't draw.

Laser-etched book edges

Charlie Williams

Roll your own challenge: computing in 66 lines of printout - homebrew CPU, or emulator, or both! Or anything really.

One Page Computing Challenge

Oberth Arm

A generic "smart" switch-mode PSU module controlled via SPI and capable of switching up to 50A.

High-power DC-DC power supply

Stuart Longland

A Streamlined IDE for Coding and Programming the ATtiny10 and other ATTiny Devices

ATTiny10IDE

A Side project where I try and build a scriptable retro adventure game engine in the browser.

HTML5 Retro Adventure Game Engine

This module has an OLED display with two buttons, 5-way joystick and a 3-axis accelerometer. This is useful in setting up UI for a project.

Easy to Implement UI || OLED Display with Joystick

akarshagarwal98

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