Texas Instruments has bestowed new touch sense capabilities upon its MSP430 range of 16-bit microcontrollers. The company’s capacitive touch portfolio introduces new hardware and free software solutions that give developers cost-effective options for microcontroller-based capacitive touch applications, while still benefitting from the battery-saving features of MSP430 devices.
The royalty-free MSP430 capacitive touch library gives developers the option to add touch sense capabilities to any MSP430 microcontroller. The open source software library eliminates the need to develop complex touch sensing algorithms and supports various capacitive touch sensors, including buttons, sliders, wheels and proximity.
Although the software library supports all MSP430 devices, some include new peripherals optimised specifically for touch sense applications. The MSP430 Value Line G2xx2 and G2xx3 devices include capacitive touch IOs, which enable developers to interface directly with capacitive touch pads without external components. Additionally, developers can look forward to upcoming MSP430F51x2 devices boasting Timer_D, a new high-resolution timer that enables high-precision touch sensing.
Rounding out the portfolio are TI’s easy-to-use kits, including the new Capacitive Touch BoosterPack, a plug-in for the MSP430 Value Line LaunchPad development tool, which allows for rapid evaluation and development of touch sensing applications. Additionally, the new MSP430F5529 experimenter board gives developers a highly-integrated evaluation platform to use touch sense buttons with a wide range of peripherals and sensors.
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