ESP8266 Arduino Killer

Très attendue cette commande est enfin arrivée avec les esp8266 et surtout sa mise en œuvre Wemos:

et depuis j’utilise beaucoup moins mes arduinos….
La station météo ressemble désormais à ça :

C’est quand même plus simple….plus besoin d’Android et ses liaisons BlueTooth et Wifi, l’esp transmettant directement les données sur mon site

le code:

#include <ESP8266WiFi.h>
#include <Wire.h>                                                       // required by BME280 library
#include <BME280_t.h>
#include <ESP8266HTTPClient.h>

#define ASCII_ESC 27
#define MYALTITUDE  150.50

char bufout[10];

BME280<> BMESensor;

const char* ssid = "XXXXXXXX";
const char* password = "XXXXXXXXX";
long previousMillis = 0;
unsigned long currentMillis = 0;
long interval = 300000; // READING INTERVAL

String data;
//EthernetClient Eclient;
WiFiServer server(80);

void setup() {
  Serial.begin(115200);
  Wire.begin(0, 2);                                                     // initialize I2C that connects to sensor
  BMESensor.begin();
  delay(10);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  // Start the server
  server.begin();
  Serial.println("Server started");

  // Print the IP address
  Serial.print("Use this URL to connect: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");

}

void loop() {
  BMESensor.refresh();                                                  // read current sensor data
  sprintf(bufout, "%c[1;0H", ASCII_ESC);
  Serial.print(bufout);
  //Serial.write(27);       // ESC command
  //Serial.print("[2J");    // clear screen command
  //Serial.write(27);
  //Serial.print("[H");
  Serial.print("Temperature: ");
  Serial.print(BMESensor.temperature);                                  // display temperature in Celsius
  Serial.println("C");

  Serial.print("Humidity:    ");
  Serial.print(BMESensor.humidity);                                     // display humidity in %
  Serial.println("%");

  Serial.print("Pressure:    ");
  Serial.print(BMESensor.pressure  / 100.0F);                           // display pressure in hPa
  Serial.println("hPa");

  float relativepressure = BMESensor.seaLevelForAltitude(MYALTITUDE);
  Serial.print("RelPress:    ");
  Serial.print(relativepressure  / 100.0F);                             // display relative pressure in hPa for given altitude
  Serial.println("hPa");

  Serial.print("Altitude:    ");
  Serial.print(BMESensor.pressureToAltitude(relativepressure));         // display altitude in m for given pressure
  Serial.println("m");

  delay(5000);
  //***************************************************************
  currentMillis = millis();
  if (currentMillis - previousMillis > interval) { // READ ONLY ONCE PER INTERVAL
    previousMillis = currentMillis;
    String t =  String(BMESensor.temperature, 2);
    String h =  String(BMESensor.humidity, 2);
    String p =  String( BMESensor.pressure);

    data = "?temp1=" + t + "&hum1=" + h + "&pres1=" + p;
    HTTPClient http;

    Serial.print("[HTTP] begin...\n");

    http.begin("http://www.xxxxxxxxxxxxxxxxxx.php"+data); //HTTP

    Serial.print("[HTTP] GET...\n");
    Serial.print("http://www.xxxxxxxxxxxxxxx.php");Serial.print(data);Serial.print("\n");
    // start connection and send HTTP header
    int httpCode = http.GET();

    // httpCode will be negative on error
    if (httpCode > 0) {
      // HTTP header has been send and Server response header has been handled
      Serial.printf("[HTTP] GET... code: %d\n", httpCode);

      // file found at server
      if (httpCode == HTTP_CODE_OK) {
        String payload = http.getString();
        Serial.println(payload);
      }
    } else {
      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }

    http.end();
  }

  // Check if a client has connected
  WiFiClient client = server.available();
  if (!client) {
    return;
  }

  // Wait until the client sends some data
  Serial.println("new client");
  while (!client.available()) {
    delay(1);
  }

  // Return the response
  client.println("HTTP/1.1 200 OK");
  client.println("Content-Type: text/html");
  client.println(""); //  do not forget this one
  client.println("<!DOCTYPE HTML>");
  client.println("<html>");
  client.println("<head><META HTTP-EQUIV=\"refresh\" CONTENT=\"10\"></head><body>");
  client.println("Mesures du <SCRIPT LANGUAGE=\"JavaScript\"> var maintenant=new Date();document.write(maintenant);</SCRIPT>: <br>");

  client.println("Temp&eacute;rature:");
  client.println(BMESensor.temperature);
  client.println("&deg;C<br>");

  client.println("Humidit&eacute;:   ");
  client.println(BMESensor.humidity);                                     // display humidity in %
  client.println("%<br>");

  client.println("Pression:   ");
  client.println(BMESensor.pressure  / 100.0F);                           // display pressure in hPa
  client.println("hPa");

  client.println("</body></html>");

  delay(1);
  Serial.println("Client disonnected");
  Serial.println("");

}

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#include <ESP8266WiFi.h>

#include <Wire.h> // required by BME280 library

#include <BME280_t.h>

#include <ESP8266HTTPClient.h>

#define ASCII_ESC 27

#define MYALTITUDE 150.50

char bufout[10];

BME280<> BMESensor;

const char* ssid = "XXXXXXXX";

const char* password = "XXXXXXXXX";

long previousMillis = 0;

unsigned long currentMillis = 0;

long interval = 300000; // READING INTERVAL

String data;

//EthernetClient Eclient;

WiFiServer server(80);

void setup() {

Serial.begin(115200);

Wire.begin(0, 2); // initialize I2C that connects to sensor

BMESensor.begin();

delay(10);

// Connect to WiFi network

Serial.println();

Serial.print("Connecting to ");

Serial.println(ssid);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {

delay(500);

Serial.print(".");

}

Serial.println("");

Serial.println("WiFi connected");

// Start the server

server.begin();

Serial.println("Server started");

// Print the IP address

Serial.print("Use this URL to connect: ");

Serial.print("http://");

Serial.print(WiFi.localIP());

Serial.println("/");

}

void loop() {

BMESensor.refresh(); // read current sensor data

sprintf(bufout, "%c[1;0H", ASCII_ESC);

Serial.print(bufout);

//Serial.write(27); // ESC command

//Serial.print("[2J"); // clear screen command

//Serial.write(27);

//Serial.print("[H");

Serial.print("Temperature: ");

Serial.print(BMESensor.temperature); // display temperature in Celsius

Serial.println("C");

Serial.print("Humidity: ");

Serial.print(BMESensor.humidity); // display humidity in %

Serial.println("%");

Serial.print("Pressure: ");

Serial.print(BMESensor.pressure / 100.0F); // display pressure in hPa

Serial.println("hPa");

float relativepressure = BMESensor.seaLevelForAltitude(MYALTITUDE);

Serial.print("RelPress: ");

Serial.print(relativepressure / 100.0F); // display relative pressure in hPa for given altitude

Serial.println("hPa");

Serial.print("Altitude: ");

Serial.print(BMESensor.pressureToAltitude(relativepressure)); // display altitude in m for given pressure

Serial.println("m");

delay(5000);

//***************************************************************

currentMillis = millis();

if (currentMillis - previousMillis > interval) { // READ ONLY ONCE PER INTERVAL

previousMillis = currentMillis;

String t = String(BMESensor.temperature, 2);

String h = String(BMESensor.humidity, 2);

String p = String( BMESensor.pressure);

data = "?temp1=" + t + "&hum1=" + h + "&pres1=" + p;

HTTPClient http;

Serial.print("[HTTP] begin...\n");

http.begin("http://www.xxxxxxxxxxxxxxxxxx.php"+data); //HTTP

Serial.print("[HTTP] GET...\n");

Serial.print("http://www.xxxxxxxxxxxxxxx.php");Serial.print(data);Serial.print("\n");

// start connection and send HTTP header

int httpCode = http.GET();

// httpCode will be negative on error

if (httpCode > 0) {

// HTTP header has been send and Server response header has been handled

Serial.printf("[HTTP] GET... code: %d\n", httpCode);

// file found at server

if (httpCode == HTTP_CODE_OK) {

String payload = http.getString();

Serial.println(payload);

}

} else {

Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());

}

http.end();

}

// Check if a client has connected

WiFiClient client = server.available();

if (!client) {

return;

}

// Wait until the client sends some data

Serial.println("new client");

while (!client.available()) {

delay(1);

}

// Return the response

client.println("HTTP/1.1 200 OK");

client.println("Content-Type: text/html");

client.println(""); // do not forget this one

client.println("<!DOCTYPE HTML>");

client.println("<html>");

client.println("<head><META HTTP-EQUIV=\"refresh\" CONTENT=\"10\"></head><body>");

client.println("Mesures du <SCRIPT LANGUAGE=\"JavaScript\"> var maintenant=new Date();document.write(maintenant);</SCRIPT>: <br>");

client.println("Température:");

client.println(BMESensor.temperature);

client.println("°C<br>");

client.println("Humidité: ");

client.println(BMESensor.humidity); // display humidity in %

client.println("%<br>");

client.println("Pression: ");

client.println(BMESensor.pressure / 100.0F); // display pressure in hPa

client.println("hPa");

client.println("</body></html>");

delay(1);

Serial.println("Client disonnected");

Serial.println("");

}

les données sont stockées dans une base mysql par le script .php:

<?php
include ("connexion.php");

$temp1=$_GET["temp1"];
$hum1=$_GET["hum1"];
$pres1=$_GET["pres1"];

$query = "INSERT INTO meteo2(date, temperature, humidite, pression)
VALUES (CURRENT_TIMESTAMP,'$temp1','$hum1','$pres1')";

$result = mysqli_query($link, $query);

mysqli_close($link);

header("Location: index.php");
?>

<?php

include ("connexion.php");

$temp1=$_GET["temp1"];

$hum1=$_GET["hum1"];

$pres1=$_GET["pres1"];

$query = "INSERT INTO meteo2(date, temperature, humidite, pression)

VALUES (CURRENT_TIMESTAMP,'$temp1','$hum1','$pres1')";

$result = mysqli_query($link, $query);

mysqli_close($link);

header("Location: index.php");

les résultats ici: daniel974/meteo2/

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