weatherstation/firmware/firmware.ino
2018-07-11 11:49:58 +02:00

151 lines
4.7 KiB
C++

#include <WiFiClient.h>
#include <ESP8266mDNS.h>
#include <ESP8266HTTPUpdateServer.h>
#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> // WiFiManager
#include <ESP8266Influxdb.h> // https://github.com/hwwong/ESP8266Influxdb auchecken und den ordner in das arduino\library verzeichnis kopieren
#include <Adafruit_Sensor.h> // PAckage Adafruit Unified Sensor
#include <Adafruit_APDS9960.h> // Adafruit APDS9960 - https://www.makerfabs.com/index.php?route=product/product&product_id=281
#include <Adafruit_BME280.h> // BME280 - https://www.roboter-bausatz.de/1704/bmp280-barometer-luftdrucksensor?gclid=EAIaIQobChMIlpumj8Hp2wIVFWYbCh01PgmFEAQYAyABEgIwBvD_BwE
#include "config.h"
//*************************************************************************//
/**
* Whishlist:
* - Webserver for /metrics endpoint (Prometheus)
* - Show current sensor values over simple webpage
* - Push sensor values to various 3rd party services (https://openweathermap.org/)
* - MQTT?
*
* - Buffer sensor values if there is no WIFI connection
* - Configure weather station over http webinterface
* - OTA firmware update
*
* TODO:
* - https://sminghub.github.io/Sming/about/
* - https://github.com/marvinroger/homie-esp8266
*/
//*************************************************************************//
float currentSensorData[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
uint16_t update_sensor_cnt = 0;
uint16_t update_webserver_cnt = 0;
WiFiManager wifiManager;
Influxdb influxdb(INFLUXDB_HOST, INFLUXDB_PORT);
Adafruit_APDS9960 apds;
Adafruit_BME280 bme;
String localIP = "127.0.0.1";
//*************************************************************************//
void setup() {
//WiFi.disconnect(); // erase the wifi credentials
#ifdef DEBUG
Serial.begin(115200);
#endif
// Pin settings
pinMode(STATUS_LED_PIN, OUTPUT);
pinMode(ANEMOMETER_PIN, INPUT_PULLUP);
pinMode(A0, INPUT);
// Establish WiFi connection
String wifiName = "oko-weather-" + String(ESP.getChipId());
wifiManager.setMinimumSignalQuality(15);
wifiManager.setConnectTimeout(60);
if (!wifiManager.autoConnect(wifiName.c_str(), "DEADBEEF")) {
#ifdef DEBUG
Serial.println("WiFi connection failed, we reboot ...");
#endif
ESP.reset();
delay(1000);
}
#ifdef DEBUG
Serial.println("Connected!");
#endif
// Open the InfluxDB session
influxdb.opendb(INFLUXDB_DB, INFLUXDB_USER, INFLUXDB_PASS);
// Initialize and configure the sensors
apds.begin();
apds.enableColor(true);
bool status = bme.begin(0x76);
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
setupWebUpdater();
localIP = WiFi.localIP().toString();
delay(100);
digitalWrite(STATUS_LED_PIN, LOW);
}
//*************************************************************************//
void loop() {
if (UPDATE_WEBSERVER_INTVERVAL_S * 1000 / DELAY_LOOP_MS <= update_webserver_cnt) {
update_webserver_cnt = 0;
doWebUpdater();
}
#ifdef DEBUG
digitalWrite(STATUS_LED_PIN, HIGH);
#endif
if (UPDATE_SENSOR_INTERVAL_S * 1000 / DELAY_LOOP_MS <= update_sensor_cnt) {
update_sensor_cnt = 0;
currentSensorData[SENSOR_TEMPERATURE] = fetchTemperature();
currentSensorData[SENSOR_HUMIDITY] = fetchHumidity();
currentSensorData[SENSOR_LIGHT] = fetchLight();
currentSensorData[SENSOR_WINDSPEED] = fetchWindspeed();
currentSensorData[SENSOR_PRESSURE] = fetchPressure();
currentSensorData[SENSOR_BAT_VOLTAGE] = getBatteryVoltage();
if (currentSensorData[SENSOR_BAT_VOLTAGE] <= 3.7)
{
ESP.deepSleep(4294967295); // battery low, shutting down
}
#ifdef DEBUG
Serial.println("");
//Serial.println("Current readings:");
Serial.println("Temperature: " + String(currentSensorData[SENSOR_TEMPERATURE]) + " °C");
Serial.println("Humidity: " + String(currentSensorData[SENSOR_HUMIDITY]) + " %");
Serial.println("Light: " + String(currentSensorData[SENSOR_LIGHT]) + " Lumen");
Serial.println("Windspeed: " + String(currentSensorData[SENSOR_WINDSPEED]) + " km/h");
Serial.println("Pressure: " + String(currentSensorData[SENSOR_PRESSURE]) + " hPa");
Serial.println("Bat Voltage: " + String(currentSensorData[SENSOR_BAT_VOLTAGE]) + " V");
#endif
pushToInfluxDB(DEVICE_NAME, currentSensorData);
setSensorData(DEVICE_NAME, localIP, currentSensorData);
}
//ESP.deepSleep(DELAY_LOOP_MS * 1000); // the ESP.deepSleep requires microseconds as input, after the sleep the system will run into the setup routine
//delay(100);
delay(DELAY_LOOP_MS);
update_sensor_cnt++;
update_webserver_cnt++;
}
//*************************************************************************//