Cap Touch 5 Click Board™

Product Code: MIKROE-3786

How Does The Cap Touch 5 Click Board™ Work? The Cap Touch 5 Click Board™ features the CY8CMBR3106S-LQXI CapSense® Express™ controller which has an advanced analogue sensing channel and the Capacitive Sigma Delta PLUS (CSD PLUS) sensing algorithm, which delivers a signal-to-noise ratio (SNR) of greater than 100:1 to ensure touch accuracy even in extremely noisy environments. This controller is enabled with Cypress's SmartSense™ Auto-tuning algorithm, which compensates for manufacturing variations and dynamically monitors and maintains optimal sensor performance in all environmental conditions. In addition, SmartSense Auto-tuning enables a faster time-to-market by eliminating the time-consuming manual tuning efforts during development and production ramp-up. Advanced features, such as LED brightness control, proximity sensing, and system diagnostics, save development time. These controllers enable robust liquid-tolerant designs by eliminating false touches due to mist, water droplets, or streaming water.

The CapSense controller locks up the user interface in firmware to prevent touch inputs in streaming water. Additionally, it implements the advanced noise immunity algorithm, EMC, for stable operation in extremely noisy conditions. Besides that, it is also perfectly suited for low-power applications, such as those operated by a battery, when a capacitive sensing controller that has ultra-low average power consumption have to be selected. The CY8CMBR3106S-LQXI controller draws an average current of 22 µA per sensor. The Cap Touch 5 Click Board™ supports four CapSense buttons. Its sensitivity can be specified individually for each CapSense button and slider. Higher sensitivity values can be used for thick overlays or small button diameters, while lower sensitivity values should be used for large buttons or thin overlays to minimize power consumption. Therefore, this Click board™ comes without the overlay, so it is up to the user to choose the desired application and implementation. Specifications Type Capacitive Applications Ideal for implementing capacitive buttons, sliders, and proximity sensing solutions with minimal development-cycle times. On-board modules CY8CMBR3106S-LQXI CapSense® Express™ controller Key Features High sensitivity (0.1 pF), Low-power CapSense, Industrial temperature range: –40 °C to +85 °C, liquid-tolerant Interface I2C Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V Pinout diagram This table shows how the pinout on the Cap Touch 5 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC NC 2 RST INT 15 NC NC 3 CS RX 14 NC NC 4 SCK TX 13 NC NC 5 MISO SCL 12 SCL I2C Clock NC 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply Ground GND 8 GND GND 9 GND Ground Onboard settings and indicators Label Name Default Description LD1 PWR - Power LED Indicator JP1 VCC SEL Left Power supply voltage selection: left position 3.3V, right position 5V