arduino M438 4-Channel Digital Touch Sensor Module Capacitive Switch Button TTP224 Micro Controller Board Electronic Hobby Kit

4-way Capacitive Touch switch The Touchpad has 4 numbered touch contacts and 4 indicator red LEDs. The panel has 4 outputs with a logic level. When touching the touch contact, a logical unit appears on the corresponding output and the red indicator LED turns on. In the initial position, there is a logical zero on all outputs of the touch panel. The scope of use of such devices is quite wide: the inclusion of a bell, the light switch, the management of electronic devices, the alarm for a house, a group of alarm sensors, and so on. When necessary, the use of the sensor allows the concealed placement of the switch. The designation of the six-pin connector: VCC-contact for connection of the supply voltage from 3 to 5 Volts. GND-contact for connecting the common wire. OUT1- digital output from the first touch contact. OUT2- digital output from the second touch contact.