The TTP226 is an 8-Channel Touch Sensor, meaning it has eight touch pads. Whenever a capacitive load such as human hands is brought in proximity with the sense pad, the sensor then senses the change in capacitance and activates the switch. Custom sense-pads can be made from nearly any conductive material and these sensors can detect touch through thin layers of non-conductive materials such as glass, plastic, fabric or even wood. Each Touch pad has its respective output pin, when the user touches a pad the corresponding output pin will go high. It is very easy to interface with microcontrollers like Arduino and Raspberry Pi to control different applications as a switch. It can be used in home automation, motor control, Relay control basically it gets rid of the push button troubles.
Specifications:
1.Operating Voltage: 2V-5.5V
2.Startup Calibration Delay: 0.5 Sec
3.Simple to Use, Auto Calibration
4.Output Status Indicator LED
5.Output can configured be Active High or Low
6.Output Mode can be configured to Toggle or Momentary
7.Output can be directly connected to Microcontroller's Input pins
Product Description
To connect it with Arduino, connect Pins VCC and GND to power up the module. Connect the Output pins to any Digital I/O pins of the Microcontroller Board. Whenever the user touches the pad the corresponding LED will light up and the pin will go High. You can read this signal by using DigitalRead command.
Additional Resources
Arduino TTP224 Sensor Module Project
Package Contents
1× TTP226 - 8 Channel Capacitive Touch Sensor Module