2019-04-14 23:11:37 +02:00

103 lines
2.1 KiB
C++

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <ArduinoJson.h>
const char* ssid = "ESP8266";
const char* password = "password";
const char* host = "192.168.4.3";
ESP8266WebServer server(80);
const int Led = 14;
void setup() {
pinMode(Led, OUTPUT);
Serial.begin(115200);
WiFi.begin(ssid, password);
Serial.println("");
digitalWrite(Led, LOW);
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
digitalWrite(Led, HIGH);
if (MDNS.begin("esp8266")) {
Serial.println("MDNS responder started");
}
}
void loop() {
if(WiFi.status() != WL_CONNECTED){
digitalWrite(Led, LOW);
Serial.println("Trying to reconnect !");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("Connected !");
}else{
if(digitalRead(Led)==LOW){
digitalWrite(Led, HIGH);
}
WiFiClient client;
const int httpPort = 80;
if (!client.connect(host, httpPort)) {
Serial.println("connection failed");
digitalWrite(Led, LOW);
return;
}
String urlTemp = "/temp";
Serial.print("Requesting URL: ");
client.print(String("GET ") + urlTemp + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
String json = "";
boolean httpBody = false;
while (client.available()) {
String line = client.readStringUntil('\r');
Serial.print(line);
if (!httpBody && line.charAt(1) == '{') {
httpBody = true;
}
if (httpBody) {
json += line;
}
}
StaticJsonBuffer<200> jsonBuffer;
Serial.println("Got data:");
Serial.println(json);
JsonObject& root = jsonBuffer.parseObject(json);
String temp = root["temperature"];
String hum = root["humidity"];
Serial.println("Temperature :"+temp);
Serial.println("Humidity :"+hum);
delay(5000);
}
}