• Wemos ESP8266 puce WiFi
• https://www.wemos.cc/en/latest/d1_mini_shield/dht.html ajout capteur DHT12
• relai de mesure de la tension , résistance 180k ( pas sur la V1 )
• batterie 18650

V1 <code c>

#include <ESP8266WiFi.h> #include <ESP8266mDNS.h> #include <WiFiUdp.h> #include <ArduinoOTA.h> #include “EspMQTTClient.h”

const char* ssid = “kerminy”; const char* password = “1234567890”; const char* mqtt_server = “192.168.1.13”; const char* host = “ESP-C49200”; = ausi nom client mqtt const char* mqtt_user = “kerminy”; const char* mqtt_pass = “patate”; int mqtt_port = 1883; int prog_version = 1; int version_maj = 1; a faire la maj OTA

EspMQTTClient client(NULL, NULL, mqtt_server, mqtt_user, mqtt_pass, host, mqtt_port); double batterie = 0; resistance 180 k A0↔GND float minute_dodo = 10; int boucle1 = 0; unsigned long lastMsg = 0; #define MSG_BUFFER_SIZE (50) char msg[MSG_BUFFER_SIZE]; int value = 0; bool donnee_prete = false; bool connexion_ok = false; bool attend_flash = false; #define capteur_dht12 float temperature = 0; float humidite = 0; float pression = 0; #ifdef capteur_dht12 #include <WEMOS_DHT12.h> DHT12 dht12; #endif void setup_wifi() { delay(10); We start by connecting to a WiFi network

Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);

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

} void callback(char* topic, byte* payload, unsigned int length) {

Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++) {
  Serial.print((char)payload[i]);
}
Serial.println();

if ((char)payload[0] == 'F') { // FLASH si F
  digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
  // A FAIRE
} else {
  digitalWrite(BUILTIN_LED, HIGH);  // Turn the LED off by making the voltage HIGH
}

} void dodo() {

Serial.print("dodo min :");
Serial.println((float)minute_dodo);
// Connect D0 to RST to wake up !
ESP.deepSleep(minute_dodo * 60 * 1000000);

}

bool recup_donnees() {

int boucle = 0;
while (donnee_prete != true && boucle < 5) { // lescture des donnees
  if (dht12.get() == 0) {
    donnee_prete = true;
    temperature = dht12.cTemp;
    humidite = dht12.humidity;
    Serial.print("Température: ");
    Serial.println(temperature);
    Serial.print("Humidité   : ");
    Serial.println(humidite);
    Serial.println();
    return true;
  }
  Serial.println("relecture capteur");
  delay(1000);
  boucle++;
}
Serial.println("pb capteur =  reboot");
dodo();
return false;

} void onConnectionEstablished() {

connexion_ok = true;
Serial.println("connected");

} void setup() {

Serial.begin(115200);
pinMode(BUILTIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
Serial.begin(115200);
Serial.println("");
Serial.print("ChipID : ");
Serial.println(ESP.getChipId(), HEX);
batterie = analogRead(A0) ;
batterie = batterie / 214.5; // 209.66 assumes external 180K resistor / 1024) * 6.13;
Serial.println(batterie);
recup_donnees();
setup_wifi();
client.enableDebuggingMessages(); // Enable debugging messages sent to serial output

}

void loop() {

// premiere lecture
if (dht12.get() == 0) {
  donnee_prete = true;
  temperature = dht12.cTemp;
  humidite = dht12.humidity;
  Serial.println("");
  Serial.print("Température: ");
  Serial.println(temperature);
  Serial.print("Humidité   : ");
  Serial.println(humidite);
  Serial.println();
}

client.loop();  // on a au moins une valeur
unsigned long now = millis();
if (now - lastMsg > 15000) {
  Serial.println("pas d'acces au serveur MQTT , dodo min :");
  dodo();
}
if (now - lastMsg > 5000) { // attend 5s avant de faire
  lastMsg = now;
  ++value;
  if (donnee_prete == true && connexion_ok == true) { // tout est pret
    Serial.println("publie");
    // Publish a message to "mytopic/test"
    String topic1 = "pgvrs/"; topic1 += host;
    String topic2 = "temp/" ; topic2 += host;
    String topic3 = "humid/"; topic3 += host;
    String topic4 = "batt/" ; topic4 += host;
    Serial.println(topic1);
    Serial.println(topic2);
    Serial.println(topic3);
    Serial.println(topic4);
    if (
      client.publish(String(topic1).c_str(), String(prog_version) .c_str()    ) &&
      client.publish(String(topic2).c_str(), String(dht12.cTemp).c_str()      ) &&
      client.publish(String(topic3).c_str(), String(dht12.humidity).c_str()   ) &&
      client.publish(String(topic4).c_str(), String(batterie).c_str()         )
    ) {
      Serial.println("donnees transmises");
      delay(5000);
      /*
        // Subscribe to "mytopic/test" and display received message to Serial
        String topic = "";
        topic = String(host) + "/" + String(prog_version);

        if ( client.subscribe(topic, [](const String & payload) {
        version_maj = atoi(payload.c_str()) ;
        }) ) {
        if (version_maj != prog_version) {
          client.enableHTTPWebUpdater(); // Enable the web updater. User and password default to values of MQTTUsername and MQTTPassword. These can be overrited with enableHTTPWebUpdater("user", "password").
          Serial.println("attend flash");
          attend_flash = true;
        }
        }
      */
      dodo();
    }
  }
}
delay(1000);

}

</code c>