30 Oct '11, 10pm

@Openenergymon From discussion earlier... might give you some ideas.

Now, I can just print the global variable h for the ADC value. The delay after the port assignments is important. I found that without the delay, the ADC value was not consistent, there were aberrant values present. Since we are powering one of the bus bars on the touchscreen with 5V and then quickly switching it to an ADC input, I imagine that I wasn't waiting long enough for the capacitance in the screen to "charge". The 1 ms delay did the trick. Now that I know the touchscreen hardware is working, I can now look into using these values to compute mouse movements using the USB libraries. The USB libraries for AVRs can be found on Object Development's download page . What you get is all of the information you need to implement USB on an AVR: USB libraries, example circuits, example source code, and pretty good documentation. Sure enough, there is some basic example code f...

Full article: http://www.sparkfun.com/tutorials/139

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