งานที่15

#include <LedControl.h> #include <DHT11.h> int pin=4; DHT11 dht11(pin); LedControl lc=LedControl(8,10,9,1); // Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices void show2digit(int h,int t) { int seg1,seg2,seg3,seg4; seg1 = h%10; seg2 = h/10; lc.setDigit(0,4,seg1,false); lc.setDigit(0,5,seg2,false); seg3 = t%10; seg4 = t/10; lc.setDigit(0,0,seg3,false); lc.setDigit(0,1,seg4,false); delay(300); } void setup() { Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } lc.shutdown(0,false); lc.setIntensity(0,5); lc.clearDisplay(0); } void loop() { int err; float temp, humi; if((err=dht11.read(humi, temp))==0) { Serial.print("temperature:"); Serial.print(temp); Serial.print(" humidity:"); Serial.print(humi); Serial.println(); } else { Serial.println(); Serial.print("Error No :"); Serial.print(err); Serial.println(); } lc.clearDisplay(0); show2digit(humi,temp); }