Sense.T.C

@version 1.0.0

Azoteq IQS323 ProxFusion controller with self-capacitive touch sensing. The tile's entire top surface is a touch electrode (CH1/CRx1), and a second channel (CH0/CRx0) is available via pad 8 for external sensors.

Two communication modes: - **Polled mode** (default): call process() from your main loop. No RDY pin wiring required. - **RDY mode**: provide a rdy_pin in config. EXTI falling-edge ISR sets a flag; process() only does I2C when the flag is set. Lower latency, less wasted I2C traffic.

Event callback: register an on_event callback to be notified of touch, proximity, slider, and gesture changes without polling individual status functions.