งานปฏิบัติ 14

งานปฏิบัติ 14

การอ่านค่าอุณหภูมิด้วยDS18820

Code 1

#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 11
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
float Tfloat;
LiquidCrystal_I2C lcd(0x27,16,2);
void setup(void)
{
  sensors.begin();
  lcd.begin();
  Serial.begin(9600);
}
void loop(void)
{
  sensors.requestTemperatures();
  Tfloat = sensors.getTempCByIndex(0);
  Serial.print(Tfloat);
  lcd.setCursor(0,0);
  lcd.print("T = ");
  lcd.print(Tfloat,4);
  delay(250);
}



//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Code 2

#include <LedControl.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 11
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
float Tfloat;
long Tint;
LedControl lc=LedControl(8,10,9,1);
// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices
void show6digit(long num)
{
  int seg1,seg2,seg3,seg4,seg5,seg6;
  seg6 = (num/100000);
  seg5 = ((num%100000)/10000);
  seg4 = (((num%100000)%10000)/1000);
  seg3 = ((((num%100000)%10000)%1000)/100);
  seg2 = (((((num%100000)%10000)%1000)%100)/10);
  seg1 = (((((num%100000)%10000)%1000)%100)%10);
  lc.setDigit(0,0,seg1,false);
  lc.setDigit(0,1,seg2,false);
  lc.setDigit(0,2,seg3,false);
  lc.setDigit(0,3,seg4,false);
  lc.setDigit(0,4,seg5,true);
  if (num>=100000)
      lc.setDigit(0,5,seg6,false);
  delay(300);
}
void setup(void)
{
  sensors.begin();
  lc.shutdown(0,false); 
  lc.setIntensity(0,5);
  lc.clearDisplay(0);
}
void loop(void)
{
  sensors.requestTemperatures();
  Tfloat = sensors.getTempCByIndex(0);
  Tint = long(Tfloat*10000);
  lc.clearDisplay(0);
  show6digit(Tint);
}

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Code 3

#include <LedControl.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 11
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
float Tfloat;
long Tint;
LedControl lc=LedControl(8,10,9,1);
// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices
void show6digit(int num)
{
  int seg1,seg2;
  seg2 = (((((num%100000)%10000)%1000)%100)/10);
  seg1 = (((((num%100000)%10000)%1000)%100)%10);
  lc.setDigit(0,0,seg1,false);
  if (num>=10)
      lc.setDigit(0,1,seg2,false);
  delay(300);
}
void setup(void)
{
  sensors.begin();
  lc.shutdown(0,false);
  lc.setIntensity(0,5);
  lc.clearDisplay(0);
}
void loop(void)
{
  sensors.requestTemperatures();
  Tfloat = sensors.getTempCByIndex(0);
  Tint = int(Tfloat);
  lc.clearDisplay(0);
  show6digit(Tint);
}
}