Azoteq IQS7221EEV02-S Evaluation Kit illustrates the design of a control knob that combines two sensors. This evaluation kit requires the IQS7221E IC and the capacitive electrode to be directly placed below the magnet. The IQS7221EEV02-S places the IC on the bottom side of the PCB, away from the magnet, leaving the PCB’s top layer free. This evaluation kit incorporates a capacitive electrode directly beneath the magnet for strong capacitive coupling.