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Lonten Tech
Custom MPR121 capacitive touch sensor module sensor keys keyboard keys for arduino
Custom MPR121 capacitive touch sensor module sensor keys keyboard keys for arduino
Regular price
$0.94 USD
Regular price
$3.94 USD
Sale price
$0.94 USD
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MPR121 Keypad Example Phone Dialing Code
by: Jim Lindblom
SparkFun Electronics
created on: 1/6/10
license: CC-SA 3.0
Turns the MPR121 Touchpad into a phone keypad. Pressing a pad will
print a 0-9, * or #.
Hardware: 3.3V Arduino Pro Mini
SDA -> A4
SCL -> A5
IRQ -> D2
I wasn't having any luck using the Wire.h library, so I've adapted
I2C code from an ATmega328 library to get this working.
If you can get this working with the Wire.h library, I'd be thrilled to hear!
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