Difference between revisions of "MPR121 Proximity Capacitive Touch Sensor Controller"

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=== Schematics ===
 
=== Schematics ===
  
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==== Revision a ====
 
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[[File:MPR121 Keypad.svg|1600px]]
 
[[File:MPR121 Keypad.svg|1600px]]
 
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==== Revision b ====
  
 
=== Galery ===  
 
=== Galery ===  

Revision as of 03:33, 6 June 2023

Keypad Matrix

The MPR121 is a I²C device which can be used to implement touch keys. It can also function as a GPIO extender and can be used to drive LEDs.

Test Board

In order to try out the MPR121 I created a quick keypad.

Schematics

Revision a

MPR121 Keypad.svg

Revision b

Galery

Miscellaneous Links