The MPR121 IC is a great way to build simple capacitive touch interfaces and now it's even easier to incorporate into your Arduino projects with the touch shield. The touch shield has 12 capacitive touch pads. With this shield you can have a total of 12 touch sensitive buttons. An on-board logic level converter allows it to work with 5V and 3.3V Arduino boards. Simply solder on some header pins and stack it on to your Arduino for a convenient input device. Check below for some example code to get you started. Special we designed a touch slider on the board You can use it control Volume/Fast Forward/Brightness and whatever you want effect. Features: - 1.71 V to 3.6 V supply operation - 29 A supply current at 16 ms sampling interval period - 3 A Stop mode current - 12 capacitance sensing inputs - I2C interfacewith Interrupt output - Size: 59mm x 53.5mm