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Firgelli Robots Capacitive Touch Sensor Unit - Digital Output

Capacitive Touch Sensor Unit - Digital Output

$6.70

Capacitive Touch Sensor Unit - Digital Output

Description:

The module is based on a touch-sensing IC (TTP223B) capacitive touch switch module. In the normal state, the module outputs low with low power consumption. When a finger touches the corresponding position, the module outputs high, if not being touched for 12 seconds, it switches to low-power mode.

Features:

* Plug and play
* Low power consumption
* Power supply for 2 ~ 5.5V DC

* Current: 3mA @ 5V
* Can replace the traditional touch button

Specification:

Item

Min

Typical

Max

Unit

Power supply voltage VCC

2.0

3

5.5

V

Output high VOH

-

0.8VCC

-

V

Output low VOL

-

-

0.3VCC

V

Output Pin Sink Current (@ VCC = 3V, VOL = 0.6V)

-

8

-

mA

Output pin pull-up current (@ VCC = 3V, VOH = 2.4V)

-

4

-

mA

Response time (low power mode)

-

-

220

mS

Response time (touch mode)

-

-

60

mS

Size

24x24x7.2

mm

Weight

2

g

 

Test Code on UNO board:

const int SensorPin = 2;     // the number of the sensor pin

int SensorState = 0;         // variable for reading the sensor status

void setup() {
pinMode(SensorPin, INPUT);
Serial.begin(9600);
}

void loop(){
SensorState = digitalRead(SensorPin);
if (SensorState == HIGH) {
Serial.println(1);
}
else {
Serial.println(0);
}
}





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