Httm Capacitive Touch Switch Button Module interactive classroom The 74HC138 is a high-speed

The 74HC138 is a high-speed CMOS device

Junction Temperature Range (T_J): -55°C to +150°C

The drive circuit is very simple

Small Signal NPN Transistor

Httm Capacitive Touch Switch Button Module interactive classroom The 74HC138 is a high-speedLatching Capacitive Touch Switch has a Built in anti jamming algorithm that has the good anti interference performance. Because Capacitive touch on off switch very is easy to use, stylish, and low cost advantages. Capacitive Touch Key Module has touch sensitive, no lag, time delay, flash, and other adverse reactions. HTTM Touch Button sensing part can be placed into any insulation layer (usually a glass or plastic material), it is easy to make and