20pcs 2.5-5.5V TTP223 Capacitive Touch Switch Button Self Lock Module For Arduino

Features: 1. Size:15*11mm 2. Power:2.5-5.5V 3.Trigger setting mode:(1->Short;0->No Short) AB=00:No-lock High TTL level output; AB=01:Self-lock High TTL level output; AB=10:No-lock Low TTL level output; AB=11:Self-lock Low TTL level output; Package included: 20 x 2.5-5.5V TTP223 Capacitive Touch Switch Button Self-Lock Module For Arduino