ajout de code trouvé sur sens com

GW-custom/DHT.h

+/* DHT library
+
+MIT license
+written by Adafruit Industries
+*/
+#ifndef DHT_H
+#define DHT_H
+
+#if ARDUINO >= 100
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+
+// Uncomment to enable printing out nice debug messages.
+//#define DHT_DEBUG
+
+// Define where debug output will be printed.
+#define DEBUG_PRINTER Serial
+
+// Setup debug printing macros.
+#ifdef DHT_DEBUG
+  #define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
+  #define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
+#else
+  #define DEBUG_PRINT(...) {}
+  #define DEBUG_PRINTLN(...) {}
+#endif
+
+// Define types of sensors.
+#define DHT11 11
+#define DHT22 22
+#define DHT21 21
+#define AM2301 21
+
+
+class DHT {
+  public:
+   DHT(uint8_t pin, uint8_t type, uint8_t count=6);
+   void begin(void);
+   float readTemperature(bool S=false, bool force=false);
+   float convertCtoF(float);
+   float convertFtoC(float);
+   float computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit=true);
+   float readHumidity(bool force=false);
+   boolean read(bool force=false);
+
+ private:
+  uint8_t data[5];
+  uint8_t _pin, _type;
+  #ifdef __AVR
+    // Use direct GPIO access on an 8-bit AVR so keep track of the port and bitmask
+    // for the digital pin connected to the DHT.  Other platforms will use digitalRead.
+    uint8_t _bit, _port;
+  #endif
+  uint32_t _lastreadtime, _maxcycles;
+  bool _lastresult;
+
+  uint32_t expectPulse(bool level);
+
+};
+
+class InterruptLock {
+  public:
+   InterruptLock() {
+    noInterrupts();
+   }
+   ~InterruptLock() {
+    interrupts();
+   }
+
+};
+
+#endif

GW-custom/dht22-wifi.ino

+/************************************************************/
+/* DHT22 -> luftdaten.info api                              */
+/************************************************************/
+
+// increment on change
+#define SOFTWARE_VERSION "MFA-2015-002-DHT22"
+
+/**********************************************/
+/* DHT declaration 
+/**********************************************/
+#include "DHT.h"
+#define DHTPIN 4  // D2
+#define DHTTYPE DHT22
+DHT dht(DHTPIN, DHTTYPE);
+
+/**********************************************/
+/* WiFi declarations
+/**********************************************/
+#include <ESP8266WiFi.h>
+
+const char* ssid = "Freifunk";
+const char* password = "";
+// const char* host = "192.168.1.12";
+const char* host = "api.luftdaten.info";
+// const int httpPort = 8000;
+const int httpPort = 80;
+int value = 0;
+
+
+unsigned long starttime;
+unsigned long sampletime_ms = 30000;
+
+
+/**********************************************/
+/* WiFi connecting script
+/**********************************************/
+void connectWifi() {
+  WiFi.begin(ssid, password); // Start WiFI
+  
+  Serial.print("Connecting ");
+  while (WiFi.status() != WL_CONNECTED) 
+  {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("WiFi connected");
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+}
+/**********************************************/
+/* send data to rest api
+/**********************************************/
+void sendData(const String& data, int pin=-1) {
+  //  delay(60000);
+  ++value;
+
+  Serial.print("connecting to ");
+  Serial.println(host);
+  
+  // Use WiFiClient class to create TCP connections
+  WiFiClient client;
+  if (!client.connect(host, httpPort)) {
+    Serial.println("connection failed");
+    return;
+  }
+  
+  // create an URI for the request
+  String url = "/v1/push-sensor-data/";
+  
+  Serial.print("Requesting URL: ");
+  Serial.println(url);
+  Serial.println(data);
+
+  String pinstr=String('-');
+  if (pin > 0 ){pinstr=String(pin);}
+  // send request to the server
+  client.print(String("POST ") + url + " HTTP/1.1\r\n" +
+               "Host: " + host + "\r\n" +
+               "Pin: " + pinstr + "\r\n" +
+               "Content-Type: application/json\r\n" +
+               "Sensor: esp8266-");
+  client.println(ESP.getChipId());
+  client.print("Content-Length: ");
+  client.println(data.length(), DEC);
+  client.println("Connection: close\r\n");
+
+  client.println(data);
+
+  delay(1);
+  
+  // Read reply from server and print them
+  while(client.available()){
+    char c = client.read();
+    Serial.print(c);
+  }
+  
+  Serial.println();
+  Serial.println("closing connection");
+}
+
+String Float2String(float value)
+{
+  // Convert a float to String with two decimals.
+  char temp[15];
+  String s;
+
+  dtostrf(value,13, 2, temp);
+  s = String(temp);
+  s.trim();
+  return s;
+}
+
+// DHT22 Sensor
+void sensorDHT(){
+  String data;
+ float h = dht.readHumidity(); //Read Humidity
+ float t = dht.readTemperature(); //Read Temperature
+
+ // Check if valid number if non NaN (not a number) will be send.
+ if (isnan(t) || isnan(h)) {
+   Serial.println("DHT22 couldn’t be read");
+ } else {
+   Serial.print("Humidity    : ");
+   Serial.print(h);
+   Serial.print(" %\n");
+   Serial.print("Temperature : ");
+   Serial.print(t);
+   Serial.println(" C");
+   
+   // json for push to api: h t
+   data = "{\"software_version\": \"";
+   data += SOFTWARE_VERSION;
+   data += "\",";
+   data += "\"sensordatavalues\":[{";
+   data += "\"value_type\":\"temperature\",\"value\":\"";
+   data += Float2String(t);
+   data += "\"},{";
+   data += "\"value_type\":\"humidity\",\"value\":\"";
+   data += Float2String(h);
+   data += "\"}]}";
+   sendData(data, DHTPIN);
+ 
+ }
+}
+
+
+/**********************************************/
+/* The Setup
+/**********************************************/
+void setup() {
+  Serial.begin(9600); //Output to Serial at 9600 baud
+  pinMode(DHTPIN,INPUT);
+  delay(10);
+  starttime = millis(); // store the start time
+  dht.begin(); // Start DHT
+  delay(1000);
+  connectWifi(); // Start ConnecWifi 
+  Serial.print("\n"); 
+  Serial.println("ChipId: ");
+  Serial.println(ESP.getChipId());
+}
+
+/**********************************************/
+/* And action
+/**********************************************/
+void loop() {
+  // Checking if it is time to sample
+  if ((millis()-starttime) > sampletime_ms)
+  {
+    starttime = millis(); // store the start time
+    sensorDHT();  // getting temperature and humidity
+    Serial.println("------------------------------");
+  }
+}
+
+