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ATMEGA_ESP8266_DALLAS/ATMEGA_ESP8266_DALLAS.ino

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+// esp8266_test.ino
+//
+// Plot LM35 data on thingspeak.com using an Arduino and an ESP8266 WiFi
+// module.
+#include <SoftwareSerial.h>
+#include <stdlib.h>
+
+#define DEBUG true
+String NomduReseauWifi = "Livebox-37cc"; // Garder les guillements
+
+String MotDePasse      = "8A6060920A8A86896F770F2C47"; // Garder les guillements
+
+// LED
+int ledPin = 13;
+// LM35 analog input
+int lm35Pin = A0;
+
+// replace with your channel's thingspeak API key
+String apiKey = "ZP1PZO62773HXWVU";
+
+// connect 10 to TX of Serial USB
+// connect 11 to RX of serial USB
+SoftwareSerial ESP8266(10, 11); // RX, TX
+
+// this runs once
+void setup() {
+
+  #ifdef DEBUG
+  Serial.begin(9600);
+#endif
+    // initialize the digital pin as an output.
+    pinMode(ledPin, OUTPUT);
+    
+  ESP8266.begin(115200);
+
+  envoieAuESP8266("AT+RST");
+  recoitDuESP8266(2000);
+
+  envoieAuESP8266("AT+CIOBAUD=9600");
+  recoitDuESP8266(2000);
+
+
+  ESP8266.begin(9600);
+
+  
+}
+// the loop
+void loop() {
+initESP8266();
+
+  // blink LED on board
+  digitalWrite(ledPin, HIGH);
+  delay(200);
+  digitalWrite(ledPin, LOW);
+  
+  // read the value from LM35.
+  // read 10 values for averaging.
+  int val = 0;
+//  for(int i = 0; i < 10; i++) {
+//    val += analogRead(lm35Pin);
+//    delay(500);
+//  }
+  
+  // convert to temp:
+  // temp value is in 0-1023 range
+  // LM35 outputs 10mV/degree C. ie, 1 Volt => 100 degrees C
+  // So Temp = (avg_val/1023)*5 Volts * 100 degrees/Volt
+  float temp = val*50.0f/1023.0f;
+  
+  // convert to string
+  char buf[16];
+  String strTemp = dtostrf(temp, 4, 1, buf);
+  
+  Serial.println("Temp " + strTemp);
+  
+  // TCP connection
+  debugPrintln("***************** GET ******************************");
+  String cmd = "AT+CIPSTART=4,\"TCP\",\"192.168.0.10\",8080";
+  envoieAuESP8266(cmd);
+  recoitDuESP8266(2000);
+  
+//  if(ESP8266.find("Error")){
+//    Serial.println("AT+CIPSTART error");
+//    return;
+//  }
+  
+  // prepare GET string
+//  String cmdGet = "GET /update?api_key=";
+//  cmdGet += apiKey;
+//  cmdGet +="&field1=";
+//  cmdGet += String(strTemp);
+//  cmdGet += "\r\n\r\n";
+
+  String url = "/json.htm?type=command&param=udevice&idx=158&svalue=255";
+  
+  String cmdGet = "GET " + url + " HTTP/1.1\r\n"
+                  + "Host: 192.168.0.10\r\nUser-Agent: ESP8266_HTTP_Client\r\nConnection: close\r\n\r\n";
+
+  debugPrintln("***************Commande GET **********************");
+
+  // demande d'envoi
+    int maxLoops = 10;
+  int currentLoop = 0;
+  boolean done = false;
+  ESP8266.print("AT+CIPSEND=4,");
+  ESP8266.println(cmdGet.length());
+
+  //delay(500);
+  done = ESP8266.find(">");
+  currentLoop = 0;
+  while (!done) {
+    delay(500);
+    done = ESP8266.find(">");
+    if (currentLoop >= maxLoops) {
+      //debugPrintln(" Attente dépassée");
+      break;
+    }
+    currentLoop++;
+    //debugPrint(".");
+  }
+    envoieAuESP8266(cmdGet + "\r\n\r\n");
+   recoitDuESP8266(8000);
+  
+//  // send data length
+//  cmd = "AT+CIPSEND=";
+//  cmd += String(cmdGet.length());
+//  ESP8266.println(cmd);
+//  
+//  if(ESP8266.find(">")){
+//    ESP8266.print(cmdGet);
+//  }
+//  else{
+//    ESP8266.println("AT+CIPCLOSE");
+//    // alert user
+//    Serial.println("AT+CIPCLOSE");
+//  }
+  
+  // thingspeak needs 15 sec delay between updates
+  delay(16000);
+}
+
+
+void initESP8266()
+{
+
+  debugPrintln("**************** DEBUT DE L'INITIALISATION ***************");
+
+  envoieAuESP8266("AT");
+  recoitDuESP8266(1000);
+
+  envoieAuESP8266("AT+CWMODE=3");
+  recoitDuESP8266(1000);
+
+  envoieAuESP8266("AT+CWJAP=\"" + NomduReseauWifi + "\",\"" + MotDePasse + "\"");
+  recoitDuESP8266(10000);
+
+  envoieAuESP8266("AT+CIFSR");
+  recoitDuESP8266(1000);
+
+  envoieAuESP8266("AT+CIPMUX=1");
+  recoitDuESP8266(1000);
+
+  envoieAuESP8266("AT+CIPSERVER=1,80");
+  recoitDuESP8266(1000);
+
+  debugPrintln("***************** INITIALISATION TERMINEE ****************");
+
+  debugPrintln("");
+}
+/****************************************************************/
+/*        Fonction qui envoie une commande à l'ESP8266          */
+/****************************************************************/
+void envoieAuESP8266(String commande)
+{
+  // debugPrintln(commande);
+  ESP8266.println(commande);
+}
+/****************************************************************/
+/*Fonction qui lit et affiche les messages envoyés par l'ESP8266*/
+/****************************************************************/
+void recoitDuESP8266(const int timeout)
+{
+  String reponse = "";
+  long int time = millis();
+  while ( (time + timeout) > millis())
+  {
+    while (ESP8266.available())
+    {
+      char c = ESP8266.read();
+      reponse += c;
+    }
+  }
+  debugPrintln(reponse);
+}
+
+void debugPrint(String m) {
+#ifdef DEBUG
+  Serial.print(m);
+#endif
+
+}
+void debugPrintln(String m) {
+#ifdef DEBUG
+  Serial.println(m);
+#endif
+
+}