ep82666

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266HTTPClient.h>
#include "floatToString.h"

Adafruit_BME280 bme;
ESP8266WiFiMulti WiFiMulti;
HTTPClient http;
#define USE_SERIAL Serial
#define OPENWEATHER_API_KEY String("ZZZZ")

float pressure;
float temperature;
float humidity;
int altimeter;
int sea_level_pressure_hp;

const size_t bufferSize = JSON_ARRAY_SIZE(3) + 2*JSON_OBJECT_SIZE(1) + JSON_OBJECT_SIZE(2) + 3*JSON_OBJECT_SIZE(4) + JSON_OBJECT_SIZE(5) + JSON_OBJECT_SIZE(6) + JSON_OBJECT_SIZE(12) + 480;
DynamicJsonBuffer jsonBuffer(bufferSize);

int parseJson(String json){
	JsonObject& root = jsonBuffer.parseObject(json);
	JsonObject& main = root["main"];
	sea_level_pressure_hp = main["pressure"]; // 1032
}

void setup_wifi(){
	USE_SERIAL.println();
	USE_SERIAL.println();
	USE_SERIAL.println();

	for(uint8_t t = 4; t > 0; t--) {
		USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
		USE_SERIAL.flush();
		delay(1000);
	}

	WiFi.mode(WIFI_STA);
	WiFiMulti.addAP("zzz", "zzz");

	// allow reuse (if server supports it)
	http.setReuse(true);
}

void setup() {
	bme.begin();
	Serial.begin(9600);
	Serial.println("Adafruit bme280 test:");

	setup_wifi();
}

void get_atmospheric_presure(){
	// wait for WiFi connection
	if((WiFiMulti.run() == WL_CONNECTED)) {

		http.begin("http://samples.openweathermap.org/data/2.5/weather?q=Lisbon&appid=" + OPENWEATHER_API_KEY);
		//http.begin("192.168.1.12", 80, "/test.html");

		int httpCode = http.GET();
		if(httpCode > 0) {
			USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);

			// file found at server
			if(httpCode == HTTP_CODE_OK) {
				parseJson(http.getString());
			}
		} else {
			USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
		}

		http.end();
	}

	delay(1000);
}

void saveToInflux(float temp, float humidity, float pressure){
	if((WiFiMulti.run() == WL_CONNECTED)) {

		char buffer[25];
		HTTPClient http;
		http.begin("http://host:8086/write?db=home_sensors");
		http.addHeader("Content-Type", "application/x-www-form-urlencoded");

		String message = "home_sensors,SOURCE=node3 temp="+String(temp)+",humidity="+String(humidity)+",pressure="+String(pressure);

		int httpCode = http.POST(message);
		if(httpCode > 0) {
			Serial.printf("[HTTP] POST... code: %d\n", httpCode);
			if(httpCode == HTTP_CODE_OK) {
				String payload = http.getString();
				Serial.println(payload);
			}
		} else {
			Serial.printf("[HTTP] POST... failed, error: %s\n", http.errorToString(httpCode).c_str());
		}
		http.end();
	}
}

void loop() {
	//Read values from the sensor:
	pressure = bme.readPressure();
	temperature = bme.readTemperature();
	humidity = bme.readHumidity();
	altimeter = bme.readAltitude (1050.35); //Change the "1050.35" to your city current barrometric pressure (https://www.wunderground.com)

	Serial.print("Temperature = ");
	Serial.print(bme.readTemperature());
	Serial.print("°");
	Serial.println("C");

	Serial.print("Pressure = ");

	Serial.print(bme.readPressure() / 100.0F);
	Serial.println(" hPa");

	Serial.print("Approx. Altitude = ");
	Serial.print(bme.readAltitude(sea_level_pressure_hp));
	Serial.println(" m");

	Serial.print("Humidity = ");
	Serial.print(bme.readHumidity());
	Serial.println(" %");

	Serial.println();

	saveToInflux(temperature, humidity, pressure);

	delay(60000); //Update every 5 sec
}