Home - lawrencebillson/parkrunStopwatch GitHub Wiki

Welcome to the parkrunStopwatch wiki!

What is this?

An open-source hardware timer, suitable for running events like parkrun

Why bother?

I've decided that I dislike the current standard stopwatch for this kind of event. Rather than complain, I thought I could do something better.

What's the current state?

So far I've achieved:

• Developing a list of design goals
• Building prototype number 1 - a PIC based system
• Building prototype number 2 - an ATMega based system
• Write software for prototype 2, upload into this GitHub
• Drawing a block diagram showing how the circuit works

The next steps:

• Draw a block diagram showing the program flow
• Layout a board / develop an enclosure
• Iterate!

What are the design goals?

Check out the full list Here

Will you sell me one?

The plan is to build it as open hardware so anyone can build or remix one. If you'd like to help test, give me a shout. I'll probably give a couple away to start with.

How does it work?

Here's a sketch showing the system architecture. Code is in the repo.