Sensing Capacitive Touch – MPR121 + Arduino

Every now and then you get sick of the typical push buttons and you want something cooler. And what is cooler than touch sensitive things? Remember that old lamp in your Grandma’s that changed brightness just by touching the base? Yeah, that’s right… We are talking THAT cool! The MPR121 capitative touch sensor gives you 12 of such inputs that we can use with our Arduino, and you can get it in several forms ...

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