Allow to set power savings mode of BH1750 light level sensor (#197)

NodeManager.cpp

@@ -1568,6 +1568,10 @@ SensorBH1750::SensorBH1750(NodeManager* node_manager, int child_id): Sensor(node
   _lightSensor = new BH1750();
 }
 
+void SensorBH1750::setMode(uint8_t mode) {
+  _lightSensor->configure(mode);
+}
+
 // what to do during before
 void SensorBH1750::onBefore() {
   _lightSensor->begin();
@@ -1596,6 +1600,12 @@ void SensorBH1750::onReceive(const MyMessage & message) {
 
 // what to do when receiving a remote message
 void SensorBH1750::onProcess(Request & request) {
+  int function = request.getFunction();
+  switch(function) {
+    case 101: setMode(request.getValueInt()); break;
+    default: return;
+  }
+  _send(_msg_service.set(function));
 }
 
 

NodeManager.h

@@ -972,6 +972,8 @@ class SensorDs18b20: public Sensor {
 class SensorBH1750: public Sensor {
   public:
     SensorBH1750(NodeManager* node_manager, int child_id);
+    // [101] set sensor reading mode, e.g. BH1750_ONE_TIME_HIGH_RES_MODE
+    void setMode(uint8_t mode);
     // define what to do at each stage of the sketch
     void onBefore();
     void onSetup();

README.md

@@ -685,6 +685,12 @@ Each sensor class can expose additional methods.
     DeviceAddress* getDeviceAddress();
 ~~~
 
+*  SensorBH1750
+~~~c
+    // [101] set sensor reading mode, e.g. BH1750_ONE_TIME_HIGH_RES_MODE
+    void setMode(uint8_t mode);
+~~~
+
 *  SensorBME280 / SensorBMP085 / SensorBMP280
 ~~~c
     // [101] define how many pressure samples to keep track of for calculating the forecast (default: 5)
@@ -1412,4 +1418,4 @@ v1.6:
 * SensorMQ now depends on its own module
 * Added automatic off capability (safeguard) to SensorDigitalOutput
 * Any sensor can now access all NodeManager's functions
-* DHT sensor now using MySensors' DHT library
+* DHT sensor now using MySensors' DHT library
\ No newline at end of file