weatherstation/firmware/influxdb.ino

#include "config_user.h"

#if INFLUXDB_VERSION == 1

#include <ESP8266Influxdb.h>     // https://github.com/hwwong/ESP8266Influxdb

Influxdb _influxdb(INFLUXDB_HOST, INFLUXDB_PORT);

const String msg = "weather,device=" + device + " ";

void influxdb_begin() {
  // Init variables to influxdb config - doesn't talk to database
  _influxdb.opendb(INFLUXDB_DB, INFLUXDB_USER, INFLUXDB_PASS);
}

void pushToInfluxDB(String device, float sensorValues[]) {
  uint8_t tries = 0;
  boolean addComma = false;

  if (!(isnan(sensorValues[SENSOR_TEMPERATURE])))
  {
    msg += "temperature=" + String(sensorValues[SENSOR_TEMPERATURE]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_HUMIDITY])))
  {
    if (true == addComma)
      msg += ",";
    msg += "humidity=" + String(sensorValues[SENSOR_HUMIDITY]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_LIGHT])))
  {
    if (true == addComma)
      msg += ",";
    msg += "light=" + String(sensorValues[SENSOR_LIGHT]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_WINDSPEED])))
  {
    if (true == addComma)
      msg += ",";
    msg += "windspeed=" + String(sensorValues[SENSOR_WINDSPEED]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_PRESSURE])))
  {
    if (true == addComma)
      msg += ",";
    msg += "pressure=" + String(sensorValues[SENSOR_PRESSURE]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_BAT_VOLTAGE])))
  {
    if (true == addComma)
      msg += ",";
    msg += "batvoltage=" + String(sensorValues[SENSOR_BAT_VOLTAGE]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_ESAVEMODE])))
  {
    if (true == addComma)
      msg += ",";
    msg += "esavemode=" + String(sensorValues[SENSOR_ESAVEMODE]);
    addComma = true;
  }
  if (!(isnan(sensorValues[SENSOR_BATCHARGESTATE])))
  {
    if (true == addComma)
      msg += ",";
    msg += "batchargestate=" + String(sensorValues[SENSOR_BATCHARGESTATE]);
    addComma = true;
  }

#ifdef LOG_MILLIS_TO_INFLUXDB
  if (true == addComma)
    msg += ",";
  msg += "timestamp=" + String(millis());
#endif

  debug(msg);

  do {
    tries++;
    _influxdb.write(msg);
  } while (_influxdb.response() != DB_SUCCESS and tries < 5);
}

#elif INFLUXDB_VERSION == 2

#include <InfluxDbClient.h> // from bib manager

// Data point
Point sensor(DEVICE_NAME);

// Init variables to influxdb config - doesn't talk to database
InfluxDBClient client(INFLUXDB_URL, INFLUXDB_ORG, INFLUXDB_BUCKET, INFLUXDB_TOKEN);

void influxdb_begin() {

  // Check server connection
  if (client.validateConnection()) {
    // success
#ifdef DEBUG
    Serial.print("InfluxDB connect success\n");
#endif
  } else {
    // fail
#ifdef DEBUG
    Serial.print("InfluxDB connect failed\n");
#endif
  }

}

void pushToInfluxDB(String device, float sensorValues[]) {

  if (!(isnan(sensorValues[SENSOR_TEMPERATURE])))
  {
    sensor.clearFields();
    sensor.addField("temperature", sensorValues[SENSOR_TEMPERATURE]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_HUMIDITY])))
  {
    sensor.clearFields();
    sensor.addField("humidity", sensorValues[SENSOR_HUMIDITY]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_LIGHT])))
  {
    sensor.clearFields();
    sensor.addField("light", sensorValues[SENSOR_LIGHT]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_WINDSPEED])))
  {
    sensor.clearFields();
    sensor.addField("windspeed", sensorValues[SENSOR_WINDSPEED]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_PRESSURE])))
  {
    sensor.clearFields();
    sensor.addField("pressure", sensorValues[SENSOR_PRESSURE]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_BAT_VOLTAGE])))
  {
    sensor.clearFields();
    sensor.addField("batvoltage", sensorValues[SENSOR_BAT_VOLTAGE]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_ESAVEMODE])))
  {
    sensor.clearFields();
    sensor.addField("esavemode", sensorValues[SENSOR_ESAVEMODE]);
    _writePoint();
  }
  if (!(isnan(sensorValues[SENSOR_BATCHARGESTATE])))
  {
    sensor.clearFields();
    sensor.addField("batchargestate", sensorValues[SENSOR_BATCHARGESTATE]);
    _writePoint();
  }

#ifdef LOG_MILLIS_TO_INFLUXDB
  sensor.clearFields();
  sensor.addField("timestamp", millis());
  _writePoint();
#endif

}

void _writePoint()
{

  uint32_t _timeout = millis();

  //debug("InfluxDB2: check connection");
  do {
  } while (client.validateConnection() and (_timeout + INFLUXDB_TIMEOUT_MS) <= millis());

  if (! client.validateConnection())
  {
    debug("Can't write to InfluxDB2, timeout validating connection");
    return;
  }

  _timeout = millis();

  //debug("InfluxDB2: waiting for write ready");
  // wait unitl ready
  do {
  } while (client.canSendRequest() == false and (_timeout + INFLUXDB_TIMEOUT_MS) <= millis());

  if (! client.canSendRequest())
  {
    debug("Can't write to InfluxDB2, timeout canSendRequest");
    return;
  }

  // Write point
  if (!client.writePoint(sensor))
  {
    debug("InfluxDB2 write failed: " + String(client.getLastErrorMessage()) + " Err: " + String(client.getLastStatusCode()));
  }

}

#endif // influxdb version 2 check