Upgrade Sensing for Your True Wireless Stereo Designs. Why Buy Four Chips if You Only Need One?
Azoteq recently released its second-generation four-in-one chip for earbuds. The IQS7222A IC is a multifunctional capacitive, inductive, and Hall-effect sensor with additional temperature sensing for reference tracking. The 1.62 x 1.62 mm chip allows you to add a touch-and-swipe interface, wear detection, docking detection and your choice of an inductive waterproof button or the inductive force-sensing features.