8.1 Example Circuit - Capacitive
The schematic above presents an example circuit for the following scenario: Capacitive Operation mode, Sleep configured for Wake-up on request, System Lock disabled, Extended Output mode enabled.
- OP_MODE pin is connected to VDD, configuring the operation mode to Capacitive
- SLP_PER pin is connected to GND on a ten-level voltage divider, enabling the Wake-up on request feature. The host must use a signal on the WU pin to trigger acquisitions.
- The THR pin is connected to a potentiometer, where the Liquid Detection threshold is configured
- The CFG_EN pin is connected to VDD, which disables the Enhanced Configuration mode
- The SYS_LK pin is connected to VDD, which disables the System Lock feature
- The UART_EN pin is connected to GND, enabling the Extended Output mode