#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <WiFiManager.h>
#include <WiFiClient.h>
#include <OneWire.h>
#include <PietteTech_DHT.h>
#include <ESP8266HTTPClient.h>
#include <ESP8266httpUpdate.h>
// Modifica cu datele tale
const char* mqttUser = "qbzesh";
const char* mqttPassword = "8219CHqbzesh";
const char* mqttSUB = "cmnd/qbzesh-1250/ESP";
const char* mqttESP = "stat/qbzesh-1250/ESP";
const char* mqttTEMP = "stat/qbzesh-1250/TEMP";
const char* mqttLWT = "tele/qbzesh-1250/LWT";
const char* espName ="qbzesh-1250";
//#######################################################################
// NU EDITA MAI JOS
//#######################################################################
const String model = "NodeMCU DHT22";
const String ver = "v1.0.6";
const char* mqttServer = "mqtt.clickhome.ro";
const int mqttPort = 1883;
long loopTimer = 900000; // miliseconds - by default trimite la 15 minute
long lastMsg = 0;
float loopTemp = 0;
float t = 0;
float loopHumi = 0;
float h = 0;
String mqttMessage;
bool bDHTstarted;
int acquireresult;
// senzor de temperatura DHT
#define DHTPIN D4 // pinul de date (la mine am pus senzor pe D4)
#define DHTTYPE DHT22 // DHT 11
void dht_wrapper();
PietteTech_DHT DHT(DHTPIN, DHTTYPE, dht_wrapper);
void dht_wrapper()
{
DHT.isrCallback();
}
//*********************************************************************
WiFiClient espClient;
PubSubClient client(espClient);
String ipToString(IPAddress ip){
String s="";
for (int i=0; i<4; i++)
s += i ? "." + String(ip[i]) : String(ip[i]);
return s;
}
String getMacAddress() {
byte mac[6];
WiFi.macAddress(mac);
String cMac = "";
for (int i = 0; i < 6; ++i) {
cMac += String(mac[i],HEX);
if(i<5)
cMac += "-";
}
cMac.toUpperCase();
return cMac;
}
void reconnect()
{
while (!client.connected())
{
//Serial.println("Reconectare la MQTT ...");
// Incerc sa ma reconectez cu LWT din 60 in 60 secunde
if (client.connect(espName, mqttUser, mqttPassword, mqttLWT, 1, 1, "Offline"))
{
Serial.println("Senzor reconectat la MQTT.");
client.publish(mqttLWT,"Online",TRUE);
// trimit informatii utile cand ma conectez
String esp_info = "{\"ESPMac\":\"";
esp_info += getMacAddress();
esp_info += "\", \"IPAddress\":\"";
esp_info += ipToString(WiFi.localIP());
esp_info += "\"}";
String netinfo = "{\"Module\":\"";
netinfo += String (model);
netinfo += "\", \"Version\":\"";
netinfo += String (ver);
netinfo += "\"}";
client.publish(mqttESP, netinfo.c_str(),TRUE);
Serial.println(netinfo);
client.publish(mqttESP, esp_info.c_str(),TRUE);
Serial.println(esp_info);
client.publish(mqttESP, "15 minute",TRUE); // trimit intervalul default
client.subscribe(mqttSUB);
}
else
{
Serial.println("Reconectare MQTT esuata: ");
Serial.println(client.state());
Serial.println("fac o alta incercare in 60 de secunde");
delay(60000);
}
}
}
void setup()
{
Serial.begin(115200);
// ma conectez la AP via wifi
WiFiManager wifi;
wifi.setTimeout(180); // sta AP 3 minute apoi se reseteaza din nou
if (!wifi.autoConnect("ClickHome")) {
Serial.println("timeout - going to sleep");
}
delay(200);
// ma conectez la mqtt server
client.setServer(mqttServer, mqttPort);
while (!client.connected()) {
Serial.println("Conectare la MQTT ...");
// fac connect cu LWT
if (client.connect(espName, mqttUser, mqttPassword, mqttLWT, 1, 1, "Offline")) {
Serial.println("Senzor conectat la MQTT.");
// trimit starea Online pe topic LWT cand ma conectez
client.publish(mqttLWT,"Online",TRUE);
// trimit informatii utile cand ma conectez
String esp_info = "{\"ESPMac\":\"";
esp_info += getMacAddress();
esp_info += "\", \"IPAddress\":\"";
esp_info += ipToString(WiFi.localIP());
esp_info += "\"}";
String netinfo = "{\"Module\":\"";
netinfo += String (model);
netinfo += "\", \"Version\":\"";
netinfo += String (ver);
netinfo += "\"}";
client.publish(mqttESP, netinfo.c_str(),TRUE);
Serial.println(netinfo);
client.publish(mqttESP, esp_info.c_str(),TRUE);
Serial.println(esp_info);
client.publish(mqttESP, "{\"LoopInterval\":\"15 minute\"}",TRUE);
client.subscribe(mqttSUB);
}
else {
Serial.print("Conectare MQTT esuata: ");
Serial.print(client.state());
delay(2000);
}
}
client.setCallback(getMessage);
}
void getMessage(char* topic, byte* payload, unsigned int length) {
mqttMessage="";
Serial.print("Message arrived in topic: ");
Serial.println(topic);
Serial.print("Message:");
for (int i = 0; i < length; i++) {
mqttMessage += (char)payload[i];
}
Serial.println(mqttMessage);
// daca a primit temp va trimite temperatura
if (mqttMessage == "temp")
{
Serial.println("Trimit temperatura si umiditatea");
acquireresult = DHT.acquireAndWait(2000);
if ( acquireresult == 0 )
{
t = DHT.getCelsius();
h = DHT.getHumidity();
delay(10);
String json = "{\"Temp\":";
json += String (t);
json += ", \"Humi\":";
json += String (h);
json += "}";
client.publish(mqttTEMP, json.c_str(),TRUE);
Serial.println(json);
}
else
{
t = h = 0;
Serial.println("Nu am putut citi temperatura si umiditatea");
}
}
// procedura de software update via WEB
if (mqttMessage == "update")
{
String msg="Software update: ";
t_httpUpdate_return ret;
//ESPhttpUpdate.rebootOnUpdate(false);
ret = ESPhttpUpdate.update("http://update.clickhome.ro/senzor/dht/arduino.bin");
//ret = ESPhttpUpdate.update("update.clickhome.ro", 80, "/senzor/dht/arduino.bin");
switch(ret) {
case HTTP_UPDATE_FAILED:
msg.concat(" eroare:");
msg.concat(ESPhttpUpdate.getLastError());
msg.concat(" motiv:");
msg.concat(ESPhttpUpdate.getLastErrorString().c_str());
break;
case HTTP_UPDATE_NO_UPDATES:
msg.concat(" no update.");
break;
case HTTP_UPDATE_OK:
msg.concat(" success.");
break;
}
Serial.println(msg);
}
// daca a primit valoarea in minute seteaza loopTimer si-l trimite in DB
if (mqttMessage == "debug")
{
loopTimer=30000; // setez sa trimita valori la 30 de secunde ca sa fac debug
client.publish(mqttESP, "{\"LoopInterval\":\"30 secunde\"}",TRUE);
}
if (mqttMessage == "10")
{
loopTimer=600000; // setez sa trimita valori la 10 minute
client.publish(mqttESP, "{\"LoopInterval\":\"10 minute\"}",TRUE);
}
if (mqttMessage == "15")
{
loopTimer=900000; // setez sa trimita valori la 15 minute
client.publish(mqttESP, "{\"LoopInterval\":\"15 minute\"}",TRUE);
}
if (mqttMessage == "30")
{
loopTimer=1800000; // setez sa trimita valori la 30 de minute
client.publish(mqttESP, "{\"LoopInterval\":\"30 de minute\"}",TRUE);
}
if (mqttMessage == "60")
{
loopTimer=3600000; // setez sa trimita valori la o ora
client.publish(mqttESP, "{\"LoopInterval\":\"o ora\"}",TRUE);
}
if (mqttMessage == "stop")
{
loopTimer=3600000000; // setez sa nu trimita valori
client.publish(mqttESP, "{\"LoopInterval\":\"oprit\"}",TRUE);
}
}
void loop()
{
if (!client.connected()) {
reconnect();
}
client.loop();
long now = millis();
if (now - lastMsg > loopTimer) {
lastMsg = now;
acquireresult = DHT.acquireAndWait(2000);
if ( acquireresult == 0 )
{
loopTemp = DHT.getCelsius();
loopHumi = DHT.getHumidity();
delay(10);
String val = "{\"Temp\":";
val += String (loopTemp);
val += ", \"Humi\":";
val += String (loopHumi);
val += "}";
client.publish(mqttESP, val.c_str(),TRUE);
}
else
{
loopTemp = loopHumi = 0;
}
}
}