Hi everyone,
Things are getting really hectic around here at meoWS. I am currently wrapping up a project and am about to start up two new projects. I hope to get one of them finished this month. Be sure to check back later this week in the projects section to see what I’ve cooked up recently.
Damnit partybot, we’re supposed to be working!!
This weekend, I decided to take some time to play around with conductive paint. I’ve been meaning to do this for a while but it wasn’t until recently that I got my hands on some paint made by Bare Conductive. I took a small sheet of acrylic I had laying around and decided to make a touch pad out of it:
Using an Arduino Pro Mini and the CapSense Library, I made a small touch sensitive piano:
In the video, I mention the high resistances in thin lines. To give you an idea, here’s a photo of the ohmmeter on one of the traces:
With the leads about a finger-width apart and the line thickness varying from 5 to 10 mm, the resistance was about 1.3 kΩ. You definitely want to use thick lines when working with this stuff…unless high resistance is what you want. There is a nice chart that gives resistance per inch for a given line thickness.
Playing with conductive paint is fun! I’m hoping to think up of other ways to use this.