/*
 This example shows how to connect BH1750 to Cayenne using an Arduino/Genuino MKR1000 and send/receive sample data.
 
 Connection:

    VCC -> VCC (3.3V)
    GND -> GND
    SCL -> SCL
    SDA -> SDA
    ADD -> (not connected) or GND
*/
 
#include <CayenneMQTTMKR1000.h>
#include <Wire.h>
#include <BH1750.h>

// WiFi network info.
char ssid[] = "ssid";
char wifiPassword[] = "wifiPassword";

// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "MQTT_USERNAME";
char password[] = "MQTT_PASSWORD";
char clientID[] = "CLIENT_ID";

unsigned long lastMillis = 0;

BH1750 lightMeter;

void setup()
{
  Serial.begin(9600);
  Cayenne.begin(username, password, clientID, ssid, wifiPassword);
  lightMeter.begin();
}

void loop()
{
  Cayenne.loop();
  //Publish data every 1 seconds (1000 milliseconds). Change this value to publish at a different interval.
  if (millis() - lastMillis > 1000) {
    lastMillis = millis();
    //Write data to Cayenne here. This example just sends the current uptime in milliseconds.
    Cayenne.virtualWrite(0, lastMillis);

    uint16_t lux = lightMeter.readLightLevel();
    Cayenne.virtualWrite(1, lux, TYPE_LUMINOSITY, UNIT_LUX);
  }
}

//Default function for processing actuator commands from the Cayenne Dashboard.
//You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands.
CAYENNE_IN_DEFAULT()
{
  CAYENNE_LOG("CAYENNE_IN_DEFAULT(%u) - %s, %s", request.channel, getValue.getId(), getValue.asString());
  //Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message");
}