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Metal Touch Interface module and number 13 comes with LED build a simple circuit to produce a touch cue lights 13 comes with digital interfaces of the LED, the metal touch sensor connected digital three interfaces, when a metal touch Sensor senses a key signal, LED ights, otherwise off.
Example Code
int Led = 13 ; // define LED Interface int buttonpin = 3; // define Metal Touch Sensor Interface int val ; // define numeric variables val void setup () { pinMode (Led, OUTPUT) ; // define LED as output interface pinMode (buttonpin, INPUT) ; // define metal touch sensor output interface } void loop () { val = digitalRead (buttonpin) ; // digital interface will be assigned a value of 3 to read val if (val == HIGH) // When the metal touch sensor detects a signal, LED flashes { digitalWrite (Led, HIGH); } else { digitalWrite (Led, LOW); } }