Physical Computing 2 - this weeks results

Physical Computing 2 - weeks results

Hi this might be a bit dense for some of you out there. Each week I need to keep a blog entry of what I'm doing in this unit. Until now I've been a bit slack with these so they'll start to appear more often now.

After coming back from a quick holiday we had good success. Up until today our group has had lots of problems with the touch sensor circuits interfering with each other. Each IC was producing strange frequency effects in the powersupply that fed them both. With help from the tutor we included a high and a low range capacitor to smooth out the frequency variations and the interfence stopped.

We're beginning to have some success with proper touch sensor design. Better earthing techniques will, hopefully, produce an even better response. We've purchased a shirt to prototype the sensors in. Any we may attach some of them tommorrow.

The multiplexor is next up. We have built one but up until now it hasn't been of much use without the touch sensor ICs working properly. Tommorrow we'll wire them up and see the result. The mutliplexor will allow us to get more data channels to the Arduino board than it has physical ports to handle.