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You've just made your own desktop synthesizer with RNBO and the Raspberry Pi, you're ready to switch the lights off and jam out - but there's no visual feedback... If there's a bleep in a dark studio but there's no pulses of twinkling light - did it even happen?

Unlike boards like the Arduino, the Raspberry Pi doesn't have an Analogue-to-Digital (ADC) converter to convert analogue signals to digital. In this article we'll learn how to use an ADC integrated circuit chip with the RPi to read in multiple Potentiometers at once and control a RNBO patcher.

In this article we'll cover how to use some simple sensors with RNBO on the Raspberry Pi target. Before attempting these, make sure you're familiar with the basics of exporting your RNBO patchers to the RPi and that your audio interface is working correctly with it.