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Cap Extend click is a mikroBUS add-on board with a SEMTECH SX8633 low power, capacitive button touch controller. It has 12 pins for connecting capacitive inputs (either touch-buttons or proximity sensors). Any sort of conductive object can be used as an input. Additional 8 GPIO pins, available on the side-edges of the board, can be used as LED drivers. The SX8633 IC integrates a 10 bit ADC - a resolution high enough to support a wide variety of touch pad sizes and shapes to be used with the click. Cap Extend click communicates with the target MCU through the mikroBUS I2C interface, with additional functionality provided by RST and INT pins. Designed to use a 3.3V power supply only. |
