SLAU857A May   2021  – July 2021 MSP430FR2476 , MSP430FR2512 , MSP430FR2522 , MSP430FR2532 , MSP430FR2533 , MSP430FR2632 , MSP430FR2633 , MSP430FR2672 , MSP430FR2673 , MSP430FR2675 , MSP430FR2676

 

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3.1 Determine Sensor Requirements

Before starting a capacitive touch project using an MSP430 MCU, you must understand the selected sensor type, the number of sensors, and the occupied CAP I/O port. Finally, select the appropriate MSP430 MCU according to these requirements.

Capacitive touch sensors are mainly divided into the following types: button or proximity sensor, slider or wheel, and touch screen.