第7週_從網際網路到物聯網 - 工業4.0概論

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發表時間 : 2018-11-02 16:16

觀看次數 : 345

//photoresistor A Style Tech.

int Pr = 0; // will be used for analog 0.

int PrValue = 0; // value of output

int Pr_Input = 89; // value of when light is on

void setup() {

Serial.begin(9600); //start serial Monitor

pinMode(8, OUTPUT); // pin 8 as output

}

void loop() {

PrValue = analogRead(Pr);

Serial.println(PrValue); //prints photoresistor value

delay(100); // value updated every 0.1 second.

if (PrValue < Pr_Input) // if sensor value is less than 19, light will turn on.

digitalWrite(8, HIGH);//LED on

else digitalWrite(8, LOW);// LED off
}

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