Digital temperature module and a digital interface,
built-in 13 LED build a simple circuit, making the temperature warning lamp
13 comes with digital interfaces of the LED,
the digital temperature sensor connected digital three interfaces,
when the digital temperature sensor senses a key signal, LED lights, otherwise off.
int Led = 13 ;// define LED Interface int buttonpin = 3; // define the digital temperature sensor interface int val ;// define numeric variables val void setup() { ???pinMode(Led, OUTPUT) ;// define LED as output interface ???pinMode(buttonpin, INPUT) ;// define digital temperature 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 digital temperature sensor detects a signal, LED flashes ???{ ??????digitalWrite(Led, HIGH); ???} ???else ???{ ??????digitalWrite(Led, LOW); ???} } |