#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266HTTPClient.h>

ESP8266WiFiMulti WiFiMulti;
String _deviceName = "PlantManager";

void setup() {
  pinMode(A0, INPUT);
  Serial.begin(115200);
  _deviceName += String(ESP.getChipId());
  delay(4000);
  Serial.println("");
  WiFi.hostname(_deviceName);
  WiFiMulti.addAP("SSID", "PASS");
  WiFiMulti.addAP("SSID", "PASS");
  Serial.println(_deviceName + " active");
}

void loop() {
  if ((WiFiMulti.run() == WL_CONNECTED))
  {
    Serial.print(WiFi.SSID() + " ");

    HTTPClient httpClient;
    int ADC = analogRead(A0);
    float voltage = ADC;
    voltage = voltage * (0.924 / 1024.0);
    voltage = voltage * 1000;

    String payload = "?ADC=" + String( ADC);
    payload += "&RSSI=" + String(WiFi.RSSI()) ;
    payload += "&V=" + String(voltage) ;

    httpClient.begin("dweet.io", 80, String("/dweet/for/" + _deviceName + payload) ); //HTTP
    int httpCode = httpClient.POST("");
    Serial.print(String(httpCode) + " POST " + payload);
    httpClient.end();

    Serial.println(" Sleep");
    ESP.deepSleep(60000000, WAKE_RFCAL);
    delay(1000);
  }
  else
  {
    Serial.println("Connecting to network..");
    Serial.println(analogRead(A0));
  }
  delay(1000);
}