Arduino入門一:人體紅外感測器
阿新 • • 發佈:2019-02-05
#define PIN_1 2 #define PIN_2 4 void setup() { // put your setup code here, to run once: Serial.begin(9600); pinMode(PIN_1,INPUT); pinMode(PIN_2,OUTPUT); } void loop() { // put your main code here, to run repeatedly: if(digitalRead(PIN_1)==HIGH){ Serial.println("Someone here!"); digitalWrite(PIN_2,HIGH); } else { Serial.println("Nobody"); digitalWrite(PIN_2,LOW); } delay(1000); }
無人經過時,LED燈不亮,串列埠監視器輸出nobody
有人經過時,LED燈亮,串列埠監視器輸出somebody here