I was finally able to combine the two example sketches (BH1750 Lux sensor and the HC-SR501. I thought I would share it in case it might help out another newbie like me
/**
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2015 Sensnology AB
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
*******************************
*
* REVISION HISTORY
*Light/Motion sensor using sketches from idefix and Henrik Ekblad
*
* DESCRIPTION
* Arduino BH1750FVI Light sensor
* communicate using I2C Protocol
* this library enable 2 slave device addresses
* Main address 0x23
* secondary address 0x5C
* connect the sensor as follows :
*
* VCC >>> 5V
* Gnd >>> Gnd
* ADDR >>> NC or GND
* SCL >>> A5
* SDA >>> A4
* http://www.mysensors.org/build/light
* Motion Sensor example using HC-SR501
* http://www.mysensors.org/build/motion
*/
// Enable debug prints to serial monitor
#define MY_DEBUG
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
#include <SPI.h>
#include <MySensors.h>
#include <BH1750.h>
#include <Wire.h>
#define CHILD_ID_LIGHT 0
#define DIGITAL_INPUT_SENSOR 3 // The digital input you attached your motion sensor. (Only 2 and 3 generates interrupt!)
#define CHILD_ID_Motion 1 // Id of the sensor child
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
BH1750 lightSensor;
// V_LIGHT_LEVEL should only be used for uncalibrated light level 0-100%.
// If your controller supports the new V_LEVEL variable, use this instead for
// transmitting LUX light level.
MyMessage msgLight(CHILD_ID_LIGHT, V_LEVEL);
// Initialize motion message:
MyMessage msgMotion(CHILD_ID_Motion, V_TRIPPED);
uint16_t lastlux;
void setup()
{
lightSensor.begin();
pinMode(DIGITAL_INPUT_SENSOR, INPUT); // sets the motion sensor digital pin as input
}
void presentation() {
// Send the sketch version information to the gateway and Controller
sendSketchInfo("Lux/Motion Sensor", "1.0");
// Register all sensors to gateway (they will be created as child devices)
present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
present(CHILD_ID_Motion, S_MOTION);
}
void loop()
{
uint16_t lux = lightSensor.readLightLevel();// Get Lux value
Serial.println(lux);
if (lux != lastlux) {
send(msgLight.set(lux));
lastlux = lux;
}
// Read digital motion value
boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;
Serial.println(tripped);
send(msgMotion.set(tripped?"1":"0")); // Send tripped value to gw
// Sleep until interrupt comes in on motion sensor. Send update every two minute.
sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
}