TANK LEVEL ESP-01

// . 13 July 2019
// . Dev: @crmrmn / carmineromano2000@gmail.com
// . Level Tank Monitor v0.1

/*
Per ridurre ulteriormente il consumo energetico,
si suggerisce di rissaldare il led power [RED] (circa 8mA assorbiti).
E' inoltre suggerito di disabilitare il "led" usato nello sketch
come debugger in quanto non è usata la com UART.
Si sono scelti i GPIO della USART in quanto rilevato problema
con il DEEP SLEEP usando GPIO2.
*/
#include <ESP8266WiFi.h>
#include <PubSubClient.h>

#define sensor 3 //Collegare sensore a GPIO3
#define led    1 //Led integrato       GPIO1

const char* ssid = "ssid";                 //Nome rete wifi
const char* password =  "password";        //Password wifi
const char* mqttServer = "urlserver";      //Url server
const int mqttPort = 11964;                //Porta mqtt
const char* mqttUser = "user";             //Utente mqtt
const char* mqttPassword = "psswd";        //Password mqtt

const int sleepTimeS = 10; //Ogni quanto inviare la lettura [sec]

WiFiClient espClient;
PubSubClient client(espClient);

void setup() {

  pinMode(sensor, INPUT_PULLUP);
  pinMode(led, OUTPUT);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    digitalWrite(led,  !digitalRead(led));
    delay(200);
  }

  client.setServer(mqttServer, mqttPort);

  while (!client.connected()) {
    digitalWrite(led, LOW);
    if (client.connect("ESP8266Client", mqttUser, mqttPassword )) digitalWrite(led, HIGH);
    else delay(2000);

  }
}

void loop() {
  client.loop();

  if(!digitalRead(sensor)) {
    client.publish("esp/tanklevel", "full");
    client.subscribe("esp/tanklevel");
    }
   else{
    client.publish("esp/tanklevel", "empty");
    client.subscribe("esp/tanklevel");
    }

  delay(1000);
  ESP.deepSleep(sleepTimeS * 1000000);
}