Grove – I2C Touch Sensor

The I2C Touch Sensor is based on FreeScale MPR121, to feel the touch or proximity of human being fingers. 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.

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Features

• Grove compatible interface
• Low power operation
• I2C interface,with interrupt output
• 12 capacitance sensing inputs,besides,8 inputs are multifuction for LED driver and GPIO
• Complete touch detection,Include Auto-configuration and Auto-calibration
• Excellent temperature stability

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Application Ideas

• PC Peripherals
• MP3 Players
• Remote Controls
• Mobile Phones

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Cautions

When install the feeler, it must not get in touch with any conductive material, or it may cause the circult short.

• Grove – I2C Touch Sensor  X1
• Touch Feeler  X4

Please visit our wiki page for more info about this product. It will be appreciated if  you can help us improve the documents, add more demo code or tutorials