Cypress CapSense® Capacitive Touch Sensing Technology

Buttons, switches, sliders and proximity sensors integrated into CapSense controllers, PSoC programmable systems-on-chip, and USB-Serial bridge controllers

Integrated touch-sensing user interfaces are replacing mechanical buttons and knobs everywhere. State-of-the-art products need a sophisticated and elegant user interface solution that works reliably in wet, electrically noisy conditions and complies with rigorous IEC 61000 generic standards for noise immunity and emissions. CapSense technology does all this. Cypress offers a range of devices integrating CapSense with LED and LCD control, sensor interfaces, system monitoring, USB-Serial bridging and many other system functions.

CapSense technology features include:

  • 1 – 44 CapSense I/Os available for configuring buttons, sliders and proximity sensors
  • Easy-to-use configurable options that require no programming know-how
  • Fully-programmable options for power users wanting detailed control
  • QuietZone™ technology for immunity to radiated and conducted noise
    • Superior signal-to-noise ratio (SNR) in all conditions with CSDPLUS sensing method
    • Sensitivity to finger capacitance changes as low as 0.1 pF, supporting 15 mm glass and 5 mm plastic overlays
  • Cypress’s SmartSense™ Auto-Tuning algorithm, which continuously compensates for system, manufacturing, and environmental changes during run-time
  • Fully-tested solutions for features such as proximity sensing and water tolerance
  • Ultra-low power with industry's widest voltage range: 1.8 V – 5.5 V
  • Multiple memory and footprint options for easy device selection

Featured Evaluation Kit

CY3280-MBR3 CapSense MBR3 Evaluation Kit

CY3280-MBR3 CapSense MBR3 Evaluation Kit

The CY3280-MBR3 CapSense MBR3 Evaluation Kit can be used to evaluate the 3rd generation of Cypress's industry-leading register-configurable CapSense technology. The CapSense MBR3 Evaluation Kit provides to users the industry's best CapSense performance supporting CapSense buttons, proximity sensing, water tolerance and many more features.

Learn More


  • Industrial automation control panels
  • Appliances
  • Medical devices
  • Keypads
  • Point-of-sale devices
  • Multi-function printers
  • Elevator controls
  • TVs, monitors
  • Portable music players and accessories
  • Mobile phones, tablets

CapSense® Express requires no coding and supports simple button or button/slider designs with up to 16 capacitive buttons or up to 5 capacitive buttons and 1 slider.

EZ-Click 2.0 is a simple yet powerful software tool that enables development of CapSense MBR solutions. This lightweight Windows® GUI-based tool has been improved to make development of capacitive user-interfaces extremely simple and quick. The tool allows you to setup sensor configuration, apply global system properties, monitor real-time sensor output, and run production-line system diagnostics – all in an intuitive, visually-driven tool, with absolutely no firmware development required.

How to Get Started with CapSense Express

  1. Purchase the $25 CapSense MBR3 Evaluation Kit
  2. Download EZ-Click 2.0
  3. Read the EZ-Click 2.0 User Guide
Part Number Description  
CY8CMBR3106S 11 Buttons, 2 Sliders, Proximity, Liquid Tolerance, SmartSense CY8CMBR3106S Product Page
CY8CMBR3116 16 Buttons, 8 LEDs, Proximity, Liquid Tolerance, SmartSense CY8CMBR3116 Product Page
CY8CMBR3108 8 Buttons, 4 LEDs, Proximity, Liquid Tolerance, SmartSense CY8CMBR3108 Product Page
CY8CMBR3110 10 Buttons, 5 LEDs, Proximity, Liquid Tolerance, SmartSense CY8CMBR3110 Product Page
CY8CMBR3102 2 Buttons, Proximity, SmartSense CY8CMBR3102 Product Page
CY8CMBR3002 2 Buttons, 2 LEDs, SmartSense CY8CMBR3002 Product Page
CY8CMBR2110 10 Buttons, 10 LEDs, SmartSense  CY8CMBR2110 Product Page
CY8CMBR2016 16 Buttons, SmartSense Auto-tuning  CY8CMBR2016 Product Page
CY8CMBR2044 4 Buttons, 4 LEDs, SmartSense CY8CMBR2044 Product Page
CY8CMBR2010 10 Buttons, 10 LEDs, SmartSense CY8CMBR2010 Product Page
CY8C201xx 10 Buttons, 5 LEDs, 2 Sliders CY8C201xx Product Page
CY3280-MBR3 CapSense MBR3 Evaluation Kit CY3280-MBR3 Product Page
CY3280-MBR2 CapSense® Express™ - CY8CMBR2110 Evaluation kit with SmartSense™ Auto-Tuning CY3280-MBR2 Product Page
CY3280-MBR CapSense Express Evaluation kit with SmartSense™ Auto-Tuning. CY3280-MBR Product Page

CapSense® - supports up to 33 capacitive buttons and 6 sliders and features such as LED effects.

Part Number Description  
CY8C20xx7/S 31 Buttons, 6 Sliders, 16-32KB Flash, Proximity, Liquid Tolerance, SmartSense CY8C20xx7/S Product Page
CY8C20xx6A/S 33 Buttons, 6 Sliders, 16-32KB Flash, 2KB SRAM, SmartSense CY8C20xx6A/S Product Page
AEK-CY8C20xx7 QuietZone™ Starter Kit is designed for easy evaluation of the CY8C20247S-24LKXI and to develop proof of concepts by connecting directly to target design boards. AEK-CY8C20xx7 Product Page

PSoC devices excel as sensor hubs, integrating CapSense touch and proximity with temperature-, pressure-, accelerometer, humidity- and light-sensing. PSoC also controls power subsystems, motors, fans, LED and LCDs.

Part Number Description  
PSoC 4 Featuring the low-power Cortex-M0 core combined with PSoC's unique programmable mixed-signal hardware IP, resulting in the industry's most flexible and scalable low-power mixed-signal architecture.  
PSoC 5LP Is a low power ARM® Cortex™ - M3 based programmable system on chip devices offering unmatched high-precision analog and the flexibility to design custom system solutions.  
PSoC 3 Is a true programmable embedded system-on-chip integrating configurable analog and digital peripheral functions, memory and a microcontroller on a single chip.  
PSoC 1 Is the world's first Programmable embedded System-on-Chip integrating configurable analog and digital peripheral functions, memory, and a microcontroller on a single chip.  
CY8CKIT-042-BLE The Bluetooth® Low Energy Pioneer Kit enables customers to evaluate and develop Bluetooth Low Energy projects using the PSoC® 4 BLE and PRoC® BLE devices.  
CY8CKIT-042 The PSoC 4 Pioneer Kit is an easy-to-use and inexpensive development platform enabling you to create unique designs with the flexibility of PSoC®4.  
CY8CKIT-040 The CY8CKIT-040 PSoC 4000 Development Kit provides users a low-cost development platform to design unique applications targeting the entry-level PSoC 4 ARM Cortex-M0 devices.  
CY8CKIT-050 PSoC® 5LP Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applications powered by Cypress’s CY8C58LP high precision analog device family.  
CY8CKIT-030 PSoC® 3 Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applications powered by Cypress’s CY8C38 high precision analog device family.  
CY8CKIT-025 PSoC® Precision Analog Temperature Sensor Expansion Board Kit (EBK) includes 5 temperature sensors and examples projects to make temperature sensing and control design quick and easy.  
CY8CKIT-001C PSoC® Development Kit (DVK) provides a common development platform where you can prototype and evaluate different solutions using any one of the PSoC 1, PSoC 3, or PSoC 5 architectures.  

Cypress USB-Serial bridge controllers integrate CapSense technology and battery charger detection with two serial channels for UART, I2C or SPI interfaces to full-speed USB.

Part Number Description  
CY7C6521x Industry's First Configuarable Dual-Channel USB Bridge Controller CY7C6521x Product Page
CYUSBS232 Reference Design Kit (RDK) is a low cost kit to evaluate CY7C65213 USB-UART LP Bridge Controller. CYUSBS232 Product Page
CYUSBS234 Development Kit (DVK) helps evaluate the features of the Single Channel USB-Serial Bridge Controller, CY7C65211. CYUSBS234 Product Page
CYUSBS236 Development Kit (DVK) helps evaluate the features of the Dual Channel USB-Serial Bridge Controller, CY7C65215 CYUSBS236 Product Page