Bonjour ,
Sur mon programme je n’arrive pas à créer l’affichage de la temperaturemax , est ce un probleme de variable ?
Merci
#include <OneWire.h>
#include <UTFT.h>
#include <UTouch.h>
#include <Wire.h>
#include “RTClib.h”
// Declare which fonts we will be using
extern uint8_t BigFont;
// Uncomment the next two lines for the Arduino 2009/UNO
//UTFT myGLCD(ITDB24D,19,18,17,16);
//UTouch myTouch(15,10,14,9,8);
// Uncomment the next two lines for the Arduino Mega
UTFT myGLCD(ITDB32S, 38,39,40,41);
UTouch myTouch(6,5,4,3,2);
int DS18S20_Pin = 7; //Entre DS18S20 pin 7
float temperaturemax=10;
//Temperature chip i/o
OneWire ds(DS18S20_Pin); // on digital pin 7
void setup()
{
Serial.begin(9600);
myGLCD.InitLCD();
myGLCD.clrScr();
myTouch.InitTouch();
myTouch.setPrecision(PREC_MEDIUM);
myGLCD.setFont(BigFont);
myGLCD.setBackColor(0, 0, 0);
}
void loop()
{
float temperature = getTemp();
Serial.println(temperature);
myGLCD.setColor(255,255,255);
myGLCD.printNumF(temperature,1,0,120);
// Test temperature max
if (temperature>temperaturemax)
{
temperaturemax=temperature;
}
else
{
myGLCD.print(“TEST”, 35, 15);
}
myGLCD.printNumF(temperaturemax,1,0,150);
delay(100); //just here to slow down the output so it is easier to read
}
float getTemp(){
//returns the temperature from one DS18S20 in DEG Celsius
byte data[12];
byte addr[8];
if ( !ds.search(addr)) {
//no more sensors on chain, reset search
ds.reset_search();
return -1000;
}
if ( OneWire::crc8( addr, 7) != addr[7]) {
Serial.println(“CRC is not valid!”);
return -1000;
}
if ( addr[0] != 0x10 && addr[0] != 0x28) {
Serial.print(“Device is not recognized”);
return -1000;
}
ds.reset();
ds.select(addr);
ds.write(0x44,1); // start conversion, with parasite power on at the end
byte present = ds.reset();
ds.select(addr);
ds.write(0xBE); // Read Scratchpad
for (int i = 0; i < 9; i++) { // we need 9 bytes
data = ds.read();
-
}*
-
ds.reset_search();*
-
byte MSB = data[1];*
-
byte LSB = data[0];*
-
float tempRead = ((MSB << 8) | LSB); //using two’s compliment*
-
float TemperatureSum = tempRead / 16;*
-
return TemperatureSum;*
}
