SmartSense auto-tuning for PSoC 3 programmable SoCs

October 18, 2011 // By Julien Happich
Cypress Semiconductor announced the PSoC 3 CapSense Plus capacitive touch-sensing solution for buttons, sliders, touchpads, and proximity sensing. Claimed to be the industry's best capacitive-sensing solution that can also perform general system control functions, the new product combines two premier Cypress product offerings, the PSoC 3 programmable system-on-chip and the CapSense capacitive touch control technology.

Cypress’ patent-pending SmartSense auto-tuning algorithm eliminates the requirement for system tuning. SmartSense enables automatic tuning of more than 10 parameters to achieve optimal touch sensing performance. The graphical CapSense software module in PSoC Creator IDE makes it easy for designers to define combinations of buttons, sliders, touch pads and proximity-sensing capacitive sensors, and offers real-time feedback of parameters such as signal-to-noise ratio (SNR), finger threshold, noise threshold, and more. The new PSoC 3 CapSense Plus devices offer up to 62 General Purpose I/O (GPIO) pins, all of which can handle CapSense signals.

A expansion board kit, the CY8CKIT-031 PSoC CapSense kit includes both button and slider modules, three separate overlays for prototyping, and a resource CD with example projects and application notes. The new kit’s adapter board allows engineers to plug in existing CapSense modules into the CY8CKIT-001 PSoC Development Kit or the CY8CKIT-030 PSoC 3 Development Kit, giving engineers access to the complete PSoC 3 ecosystem to create powerful, customized designs, and ease customers’ ability to re-use CapSense designs within the PSoC 3 environment.

More information at

Visit Cypress Semiconductor at