This sensor include 2 parts: one Touch Sensor controller, and 4 finger feelers. Insert the connectors of feelers into base of Sensor controller, you can begin your touch controlling.
MPR121: The MPR121 is a capacitive touch sensor controller,features internal intelligence, include an hardware configurable I2C address, an expended filtering system with debounce, and completely independent electrodes with auto-configuration built in .
Touch Sensor feeler: The Touch Sensor feelers, which was 4 included in Touch Sensor module,can be set in any place you like, to feel your finger's touch or proximity. Notice it must not get in touch with any conductive material.
- Operating Voltage: 3 - 5.5V
- Standby Mode Current: 2μA
- Touch Pads: 12 Pads
- Communicating Protocol: I2C
- I2C Address: 0x5A - 0x5D
- Grove - I2C Touch Sensor X1
- Touch Feeler X4
Please visit the wiki page for more info about this product.