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- //KY017 Mercury open optical module
- int Led = 13 ;// define LED Interface
- int buttonpin = 3; // define the mercury tilt switch sensor interface
- int val ;// define numeric variables val
- void setup ()
- {
- pinMode (Led, OUTPUT) ;// define LED as output interface
- pinMode (buttonpin, INPUT) ;// define the mercury tilt switch sensor output interface
- }
- void loop ()
- {
- val = digitalRead (buttonpin) ;// read the values assigned to the digital interface 3 val
- if (val == HIGH) // When the mercury tilt switch sensor detects a signal, LED flashes
- {
- digitalWrite (Led, HIGH);
- }
- else
- {
- digitalWrite (Led, LOW);
- }
- }
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