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Touch Sensing
MichaelMeissner edited this page May 12, 2020
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The Teensy LC, 3.0, 3.1, 3.2, and 3.6 have special support for touch sensing using the touchread call. Here are some pages and threads that talk about this:
- http://little-scale.blogspot.com/2017/05/teensy-36-basics-touchread.html
- http://njhurst.com/blog/01356576041
- https://hackaday.io/project/8371-wooden-sensor-box-w-2-rotary-disks/log/27706-the-touch-sensing-and-touchread
- https://stevendigitaltech.wordpress.com/2015/04/25/lab-11-touchread/
- https://electronics.stackexchange.com/questions/411729/how-can-i-make-a-capacitive-touch-panel-that-can-sense-position
- https://electricnoodlebox.wordpress.com/tutorials/paint-a-midi-controller-with-teensy/
Unfortunately, the Teensy 3.5, 4.0, and 4.1 do NOT have touch sensitive pins. The following libraries may help provide touch support for these systems:
- https://github.com/adrianfreed/FastTouch.git
- https://github.com/PaulStoffregen/CapacitiveSensor
There are also I2C or SPI devices that provide touch sensing without the microprocessor board needing to support touch sensing. There are self contained modules, or displays with touch sensing:
Teensy is a PJRC trademark. Notes here are for reference and will typically refer to the ARM variants unless noted.