PIC Microcontroller Touch Keypad

Need a touch Keypad instead of the traditional 4×4 keypads? This might be the way to go.

The actual data from the touch sensors is quite erratic and requires some software processing. Basically you create a pulse for each of the ports and read the data with the instruction following the pulse signlal rise. Then read the ports the same way looking for a gap of 0.1 seconds with no data detected. This does the ‘debounce’. This results in fairly clean data capture from the sensors.

via

How to Survive the Recession!

Tags: 4x4, Circuits, Computer, data_capture, gap, keypads, Projects, touch_sensors

This entry was posted by max on Friday, September 28th, 2007 at 6:38 pm and is filed under Circuits, Computer, Projects.

Rate

Loading ...

nok

hello...

i interests PIC Microcontroller Touch Keypad project.
please send me sechematic and source code.
large thancks

Xpider G

Please sent me the info on this it would be perfect for a keypad ignition concept for my motorcycle.

blog comments powered by Disqus

Bookmark It!

Email this to a Friend

Email This Post

If you like this post then please subscribe to my full feed RSS. You can also subscribe by Email.

Got a new hack, DIY, howto, or gadget? Tip us here.