Digital Double Sided Capacitive Touch Switch Module sensor TTP223B

These are double sided capacitive touch switches, they will work well with Arduino @ 5V

or run them with Raspberry Pi @ 3.3V

Specifications

PCBsize	38.0mmX24.0mmX1.6mm
Workingvoltage	3.3 or 5VDC
Operatingvoltage	3.3 or 5VDC
Compatibleinterfaces	2.54 3-pin interface and 4-pin connector

Note 1 S for digital output port, N for not used pin, V and G for voltage at the common collector and ground respectively. When there is no operation, digital output is VDD; when the button is pressed down, the digital output is 0V.

Electrical characteristics

Electricalcharacteristics	Min.	Typical	Max.	Unit
Supply voltage	2	3	5.5	VDC
Working current    VCC=5V	-	18	-	uA
Digital output voltage   VCC=5V	0	-	5	V