DAOKAI 20pcs TTP223 Key Module Self Locking Jog Capacitive Touch Switch Key Switch Single Channel Sensor Module For Arduino With Dupont Cable

Specification: 12 x Touch Switch Module 【Low Consumption】In the normal state, the module output low level, low power consumption. Inching type: the initial state is low level, touch is high level, non-touch is low level (similar to the touch button function) Touch and it turns on, release and it turns off. Both front and back sides can be used as touch surfaces, which can replace traditional touch buttons 【Easy to Install】Four M2 screws positioning holes for easy installation. As long as the touch position is correct, it can be made into a wall, desktop, etc. button 【Application】With optocoupler + bidirectional thyristor, smart home projects such as touch fluorescent lamps can be completed;With optocoupler + delayer + bidirectional thyristor, it can complete the touch light of stairs 【High Performance】When a finger touches the corresponding position, the module output high level.