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TTP223-BA6 touch pad detector IC — Parallax Forums

TTP223-BA6 touch pad detector IC

Ron CzapalaRon Czapala Posts: 2,418
edited 2015-05-04 15:22 in Accessories
Has anyone experimented with these touch sensors?

EDIT: I found erco's post with for the TTP226 / 8 pad board: http://forums.parallax.com/showthread.php/156497-2.79-8-Channel-Capacitive-Keypad

There are various boards on eBay and elsewhere.

I was thinking about making a touch sensitive lamp module and found several circuits using 555 timers (with or without a flip-flop) and then came across these sensors.

I may order a few just to play around with...

http://www.ebay.com/itm/Touch-Sensor-Capacitive-Touch-Switch-Module-DIY-for-Arduino-Digital-TTP223B-/261758997611?pt=LH_DefaultDomain_0&hash=item3cf20d546b

Datasheet: http://www.datasheet4u.com/download.php?id=770045

attachment.php?attachmentid=113989

TTP223 sensor board.JPG
802 x 801 - 97K

Comments

  • Ron CzapalaRon Czapala Posts: 2,418
    edited 2015-05-04 15:22
    Got my four TTP223 touch sensor boards today. They all work fine (the LED on one was defective - I replaced it),

    They are momentary - they work as proximity sensors but your finger needs to be real close (like 1/16th inch). Not bad for $1.24.
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