I wanted to build a traffic counter to measure bicycle traffic in a few places around Los Angeles.
I came across this:
...which is just such a thing touting:
We have made the parts list and Arduino code available under a Creative Commons License. We have developed multilingual How-To guides to allow anyone to build a DIY Traffic Counter.
But then I couldn't find their plans anywhere. After contacting the site administrator I was told they are now selling a revised model here:
http://waycount.com/They've also built some nice tooling around uploading the data and aggregating it into a central portal.
Which is all cool stuff - but I'm interested in building my own sensor, and was disappointed that they took down the original instructions.
The basic design is a pneumatic tube connected to a differential pressure sensor. Results are logged onto the device. And the whole thing runs on a 9v battery for around 8 hours.
I was able to go to the way back machine and find a guide (yay internet archive!):
But haven't yet tracked down the parts list, which wasn't indexed due to it being a GDoc. There are some links to parts at the end of the aforlinked guide (last page). I'm also missing the arduino software that works with the sensor.
Anyway - anyone have experience with this or a similar design? Or *crosses fingers* have the software?
M