SPECIFICATIONS

Brand Name: NONE

Choice: yes

Condition: New

High-concerned chemical: none

Origin: Mainland China

Type: Module

The MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode.

The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs.

Low power operation, 1.71 V to 3.6 V supply operation.

There a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A.

29μA supply current at 16 ms sampling interval period.

3 μA Stop mode current.

12 capacitance sensing inputs.

8 inputs are multifunctional for LED driver and GPIO.

Complete touch detection.

Auto-configuration for each sensing input.

Auto-calibration for each sensing input.

Touch/release threshold and debounce for touch detection.

I2C interface, with Interrupt output.

MPR121: 3 mm x 3 mm x 0.65 mm .

-40°C to +85°C operating temperature range.

Package Include:

• 1/3PCS MPR121 Development Board

(please choose the model and quantity you need,we will send the goods according to your choice.)