From 6637616fbc5f6bf24d4b64dc7dc87410181bb78e Mon Sep 17 00:00:00 2001
From: lahouass <loris.ahouassou@polytech-lille.net>
Date: Sat, 21 Mar 2020 20:22:23 +0100
Subject: [PATCH] code de température effectif

---
 codes/temperature.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+), 0 deletions(-)
 create mode 100644 codes/temperature.c

diff --git a/codes/temperature.c b/codes/temperature.c
new file mode 100644
index 0000000..1698a96
--- /dev/null
+++ b/codes/temperature.c
@@ -0,0 +1,53 @@
+#include <avr/io.h>			// for the input/output register
+#include <avr/interrupt.h> 	
+#include <util/delay.h>  
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "libretour.h"
+
+#define PRESCALER 1024
+#define TIME_SLOT 20
+#define BAUDRATE	103
+
+#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
+#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
+
+char Donnee[24];
+float temp;
+
+// équivalent de analogueRead()
+int analogReadNew(uint8_t pin) {
+  //Selection de la fréquence du prescaler
+  ADCSRA |= (1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0);
+  //Définition de la référence de tension
+  ADMUX |= (1<<REFS0)|(1<<ADLAR);
+  //Sélection de l'entrée analogique selon le pin
+  ADMUX = (ADMUX&0xf0)|pin;
+  //Activation de l'ADC 
+  ADCSRA |= (1<<ADEN);
+  //Lancement de la conversion
+  ADCSRA |= (1<<ADSC);
+  //On attend la fin de la conversion
+  while(bit_is_set(ADCSRA, ADSC));
+  //Résultat
+  return ADCH;
+}
+
+int main()
+{
+   int reading;
+   init_serial();
+   while(1){
+    reading=analogReadNew(0);
+    temp = reading * 1.9607843;
+    dtostrf(temp, 4, 1, Donnee);
+    //send_serial('T');
+    //send_serial('=');
+    //RETOUR
+    retour(Donnee);
+    _delay_ms(2000);
+   }
+   return 0;  
+}
--
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