The MPR121 (MPR121QR2) IC is the 2 nd generation capacitive touch sensor controller from Freescale Semiconductor. The chip features increased internal intelligence, some of the major pluses include an ...

Reading this sensor with a microcontroller is extremely similar to a capacitive touch sensor made out of copper and FR4. All the code is available in a repo, ...

[Marcus] has written up his experiences using the AD7746 capacitance sensor. He used the SparkFun breakout board in conjunction with an Arduino. The available Arduino code wasn’t that great s… ...

And the Touch Board from Bare Conductive wants you to combine your DIY spirit with the ability to turn practically any surface into a sensor. At the heart is an Arduino compatible microcontroller ...

To take full advantage of the Touch Board's capacitive capabilities, a bit of "distance code" can be uploaded to the board, making the touch sensor sensitive enough that you can interact with it ...

We use the built in capacitive touch measurement system built into the ATSAMD10 chip, which will give you a reading ranging from about 200 (very dry) to 2000 (very wet).