109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
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//******************************************************************************************
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// File: PS_BH1750_Illuminance.cpp
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// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
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//
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// Summary: PS_BH1750_Illuminance is a class which implements the SmartThings "Illuminance Measurement" device capability.
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// It inherits from the st::PollingSensor class. It uses I2C communication to measure the Illuminace from a MAX44009 sensor.
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//
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// Create an instance of this class in your sketch's global variable section
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// For Example: st::PS_BH1750_Illuminance sensor1(F("illuminance1"), 60, 0); (simple, uses defaults)
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// For Example: st::PS_BH1750_Illuminance sensor1(F("illuminance1"), 60, 0, BH1750_ADDR_LOW); (full user control of settings)
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//
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// st::PS_BH1750_Illuminance() constructor requires the following arguments
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// - String &name - REQUIRED - the name of the object - must match the Groovy ST_Anything DeviceType tile name
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// - long interval - REQUIRED - the polling interval in seconds
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// - long offset - REQUIRED - the polling interval offset in seconds - used to prevent all polling sensors from executing at the same time
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// - uint8_t addr -OPTIONAL - defaults to BH1750_ADDR_LOW
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//
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//
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// I2C address options
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// BH1750_ADDR_LOW 0x23 //< Pin A0 pulled Low
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// BH1750_ADDR_HIGH 0x5C //< Pin A0 pulled Hi
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//
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//
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// This class supports receiving configuration data from the SmartThings cloud via the ST App. A user preference
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// can be configured in your phone's ST App, and then the "Configure" tile will send the data for all sensors to
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// the ST Shield. For PollingSensors, this data is handled in the beSMart() function.
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//
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// TODO: Determine a method to persist the ST Cloud's Polling Interval data
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//
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// Change History:
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//
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// Date Who What
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// ---- --- ----
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// 2018-07-03 Dan Ogorchock Original Creation
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//
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//
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//******************************************************************************************
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#include "PS_BH1750_Illuminance.h"
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#include "Constants.h"
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#include "Everything.h"
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namespace st
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{
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//private
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//public
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//constructor - called in your sketch's global variable declaration section
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PS_BH1750_Illuminance::PS_BH1750_Illuminance(const __FlashStringHelper *name, unsigned int interval, int offset, uint8_t addr) :
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PollingSensor(name, interval, offset),
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myLux(addr)
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{
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}
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//destructor
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PS_BH1750_Illuminance::~PS_BH1750_Illuminance()
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{
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}
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//SmartThings Shield data handler (receives configuration data from ST - polling interval, and adjusts on the fly)
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void PS_BH1750_Illuminance::beSmart(const String &str)
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{
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String s = str.substring(str.indexOf(' ') + 1);
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if (s.toInt() != 0) {
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st::PollingSensor::setInterval(s.toInt() * 1000);
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if (st::PollingSensor::debug) {
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Serial.print(F("PS_BH1750_Illuminance::beSmart set polling interval to "));
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Serial.println(s.toInt());
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}
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}
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else {
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if (st::PollingSensor::debug)
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{
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Serial.print(F("PS_BH1750_Illuminance::beSmart cannot convert "));
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Serial.print(s);
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Serial.println(F(" to an Integer."));
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}
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}
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}
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void PS_BH1750_Illuminance::init() {
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//initialize the BH1750
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myLux.begin();
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//give sensor time to get its first data sample ready to be read
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delay(1000);
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//read and transmit initial data from sensor
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getData();
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}
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//function to get data from sensor and queue results for transfer to ST Cloud
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void PS_BH1750_Illuminance::getData()
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{
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/* Get a new sensor data */
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m_nLux = myLux.readLightLevel();
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//Send data to SmartThings/Hubitat
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Everything::sendSmartString(getName() + " " + String(m_nLux));
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}
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}
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