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Rp49.900
MPR121 4x3 i2C Capacitive Touch Keypad Module Sensitive Key Keyboard
Rp49.900
The MPR121 capacitive keypad uses the MPR121 and 12 touch sensitive pads
to give you a simple 'keypad' with an I2C output.
The board also has four mounting holes allowing it to be used
as an input system in place of traditional buttons.
Check the example code below for an easy way to read the keypad.
Note: This keypad outputs 3.3V logic.
If you are using a board which only accepts 5V logic, you will run into a problem.
You will want to use a logic level converter, or a board which accepts 3.3V logic.
to give you a simple 'keypad' with an I2C output.
The board also has four mounting holes allowing it to be used
as an input system in place of traditional buttons.
Check the example code below for an easy way to read the keypad.
Note: This keypad outputs 3.3V logic.
If you are using a board which only accepts 5V logic, you will run into a problem.
You will want to use a logic level converter, or a board which accepts 3.3V logic.
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