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The programmable binary computer built into a 20cm ruler.
The programmable binary computer built into a 20cm ruler.
487 backers pledged AU$ 22,097 to help bring this project to life.

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Digirule2 - Code in Binary Like it's 1975.

AU$ 22,097

487

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

4403163e998dbac1a99eeb7d41b126ff original.jpg?ixlib=rb 2.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

In the early days of personal computers, programming in binary was the only game in town. Systems such as the Altair 8800 gave the user a bunch of switches and LED's with which to interact and program the computer - those were some exciting times in computing history!

Altair8800b
Altair8800b

The Digirule2 is essentially an 8-bit binary computer of the 1970's, built into a 20cm ruler. It features an 8-bit address bus, 8-bit data bus, data input buttons and 33 instructions for you to code your own programs.

Digirule2 Features
Digirule2 Features

With an instruction set consisting of 33 instructions - the Digirule2 can be programmed to perform all sorts of tasks, including fun games such as the classic 'kill-the-bit' game for the Altair 8800 or perhaps a Knightrider LED scanner, binary counter or a simple game of two player pong!

An excel spreadsheet allows you to easily write your code in mnemonic form - it will then automatically convert it into binary machine code for you to enter into the Digirule2:

'Kill-The-Bit' Game Code
'Kill-The-Bit' Game Code
  • Dimensions 209mm x 40mm x 1.6mm
  • 33 Instructions
  • Open Source Hardware and Software
  • Powered by an 8-bit Microchip PIC18F43K20 Microcontroller
  • 256 Byte program memory space
  • 8-bit data bus
  • 8-bit address bus
  • Eight blocks of 256 Byte flash memory to store your programs
  • Eight address LED's
  • Eight Data LED's
  • Eight Data input buttons

The Digirule2 is completely open source and all files will be available for download once the campaign is finished from the Digirule2 website including source code, schematic, PCB design, bill of materials and gerber files.

Prototypying is complete, the Digirule2 has been tested and is ready for backers - all I need now, is you! (and your friends).

For backers not in Australia - shipping will be direct from my manufacturer in China. For backers in Australia - your Digirule2's will be sent out by me in Australia - so you should be the first to receive your rewards.

Thanks for taking the time to check out the Kickstarter campaign, if you'd like a DigiRule2 of your very own, then be sure to put in a pledge and I'll be getting them out to you ASAP!

Please note: Due to postage restrictions on lithium batteries, the CR2032 battery will not be included with each DigiRule2. I apologise for this however it is not something that I can change. As such, you will need to purchase a battery locally.

Risks and challenges

I have run numerous successful Kickstarter campaigns over the past few years and have been able to fulfil the backer rewards with quite a minimum of fuss. The DigiRule2 project is very similar to my previous campaigns and since I will be using essentially the same suppliers and manufacturers, I am very confident that this campaign will run smoothly as well.

However challenges do arise such as delays with components and / or pcb manufacture etc... However since I have been working on projects like this since 2007 and have dealt extensively with component and pcb manufacturing companies, along with running numerous successful Kickstarter campaigns, I am confident that if any challenges do arise, I will certainly be able to overcome them to again make this a successful campaign.

Here are my previous campaigns:

https://www.kickstarter.com/projects/1897710270/digirule-the-interactive-binary-ruler

https://www.kickstarter.com/projects/1897710270/digipixel-an-led-game-shield-for-your-arduino-or-d

https://www.kickstarter.com/projects/1897710270/usb-meter-pro-monitor-and-accelerate-your-usb-char

https://www.kickstarter.com/projects/1897710270/retroball-build-it-yourself-pixel-fun-for-upto-fou-0

https://www.kickstarter.com/projects/1897710270/toaster-dual-output-usb-step-up-breadboard-power-s

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  1. Reward no longer available

    Pledge AU$ 17 or more About US$ 12

    Early Bird Special

    One Digirule2 - Programmable Binary Ruler for an early bird Price!

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    Pledge AU$ 22 or more About US$ 15

    One Digirule2

    One Digirule2 - Programmable Binary Ruler for a Great Price!

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Funding period

- (14 days)