wifi_post_json.ino

//#include <Servo.h>

#include <ArduinoJson.h> 

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

// #define CLK D0
#define BTN_BLANCO D7 //blanco
#define BTN_AMARILLO D6
#define BTN_ROJO D5

#define LED_VERDE D0
#define LED_AMARILLO D1
#define LED_ROJO D2

const char* ssid     = "ThinkPad"; //"TP-LINK_A89012";
const char* password = "tu_password"; //"63004496";

                // "jardin/set_xy/5d896075f2a3a7fc14643def"
                //http://172.21.70.103:8080/kumbiaphpiot/jardin/set_xy/5d896075f2a3a7fc14643def
String server = "http://172.21.70.103:3000/dispositivos/5d71996e87f4463f70fa302a/registrar";

//Encoder myEnc(D0, D1);
//long oldPosition = -999;
void setup() {

  Serial.begin(9600);

  pinMode(BTN_BLANCO, INPUT);
  pinMode(BTN_AMARILLO, INPUT);
  pinMode(BTN_ROJO, INPUT);
  
  pinMode(LED_VERDE, OUTPUT);
  pinMode(LED_AMARILLO, OUTPUT);
  pinMode(LED_ROJO, OUTPUT);

  Serial.println("WiFi connected"); 
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

    while (WiFi.status() != WL_CONNECTED) {
    delay(500);
  }


  Serial.println("");
  Serial.println("WiFi connected");  
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());


}
 
void loop() {  
  
  if(digitalRead(BTN_BLANCO) == HIGH){
       digitalWrite(LED_VERDE, HIGH);
       post(20);
       digitalWrite(LED_VERDE, LOW);
    }

     if(digitalRead(BTN_AMARILLO) == HIGH){
       digitalWrite(LED_AMARILLO, HIGH);
       post(25);
       digitalWrite(LED_AMARILLO, LOW);
    }

      if(digitalRead(BTN_ROJO) == HIGH){
       digitalWrite(LED_ROJO, HIGH);
       post(35);
       digitalWrite(LED_ROJO, LOW);
    }
  
  //post("rojo");    
  delay(5000);
  post(22);
 
}

void post(int temperatura) {
  HTTPClient http;
/*
  // Serial.println("JOSN = ");
  //String json = "{\"distancia\":";
  //json.concat(distancia);
  //json.concat("}");
  {"distancia":50}
*/
  String json;
  StaticJsonBuffer<200> jsonBuffer;
  JsonObject& root = jsonBuffer.createObject();
  root["temp"] = temperatura;
  root["dispositivo"] = "Cocina";

  root.printTo(json);

  Serial.println(""); // salto de linea para http.writeToStream(&Serial);

  http.begin(server);
  http.addHeader("Content-Type", "application/json");
  http.POST(json);
  http.writeToStream(&Serial);
  http.end();
  
}