working with the qt160 touch sensor IC

Forum 2005-2010 (read only) Hardware Interfacing
1

Dear community,
I´m trying to work with the qt160 Sensor IC. It is a 6 Key Charge-transfer touch sensor. For getting the IC working - it also needs an oscillator with 10MHz - can I the PWM of the Arduino for this? - Does already somebody on this list work with qproc ICs?

thanks for any comment.-

fränk

2

it also needs an oscillator with 10MHz - can I the PWM of the Arduino for this

Sorry no. It runs at 16Mhz so there is no way you could get it that fast.

However, for that IC the frequency is not that critical spo you could get away with a free running oscillator. However, you will probably need a PCB to make the system stable.

3

Hello INST,

In a couple of days I am going to hook up a QT160 by QProx as well.
Got the data sheet know, but I was wondering if you could share some experience (bottlenecks, do's and don'ts) with me and the rest of the community?

Pure curiosity: What are you going to use the QT160 for?

Thanks!
Floris

4

If you reprogrammed the Arduino's CKOUT fuse (requires ISP programmer hardware) the 16MHz clock would be output on Arduino's I/O 8.

5

Hello Floris,
sorry for answering so late.- Well I had a few problems with the Quarz. - But if have the right one it works.- Actually I´m planning to run it with an Ardiuno board.- And I´m trying to make a primitive over-sized touch-pad.- Take also a look to the qprox forum, if you´ve problems with the circuit.-
What are you going to do with it?

best.-
frank