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- 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);
- }
- }
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