Switch the sensor interface from floats to doubles

src/main/java/com/pi4j/drivers/sensor/Sensor.java

@@ -6,8 +6,21 @@
 public interface Sensor extends Closeable {
     SensorDescriptor getDescriptor();
 
+    /**
+     * Provided for backwards compatibility while we are switching over to double values
+     * to better accommodate gps and other high precision sensors.
+     */
+    @Deprecated
+    default void readMeasurement(float[] values) {
+        double[] doubleValues = new double[values.length];
+        readMeasurement(doubleValues);
+        for (int i = 0; i < values.length; i++) {
+            values[i] = (float) doubleValues[i];
+        }
+    }
+
     /** Reads a single measurement. For information about the values, please refer to getDescriptor() */
-    void readMeasurement(float[] values);
+    void readMeasurement(double[] values);
 
     @Override
     void close();

src/main/java/com/pi4j/drivers/sensor/environment/bmx280/Bmx280Driver.java

@@ -428,7 +428,7 @@ private int readRegisterU16(int register) {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         Measurement measurement = readMeasurement();
         values[0] = measurement.temperature;
         values[1] = measurement.pressure;

src/main/java/com/pi4j/drivers/sensor/environment/hts221/Hts221Driver.java

@@ -106,7 +106,7 @@ public float readHumidity() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         values[0] = readHumidity();
         values[1] = readTemperature();
     }

src/main/java/com/pi4j/drivers/sensor/environment/lps25h/Lps25hDriver.java

@@ -66,7 +66,7 @@ public SensorDescriptor getDescriptor() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         values[0] = readPressure();
         values[1] = readTemperature();
     }

src/main/java/com/pi4j/drivers/sensor/environment/scd4x/Scd4xDriver.java

@@ -61,7 +61,7 @@ public void startPeriodicMeasurement() {
     }
 
 
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         Measurement measurement = readMeasurement();
         values[0] = measurement.temperature;
         values[1] = measurement.humidity;

src/main/java/com/pi4j/drivers/sensor/environment/tcs3400/Tcs3400Driver.java

@@ -74,7 +74,7 @@ public float[] readCrgb() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         while((registerAccess.readRegister(Register.STATUS) & 1) == 0) {
             try {
                 Thread.sleep(10);

src/main/java/com/pi4j/drivers/sensor/geospatial/hcsr04/Hcsr04Driver.java

@@ -90,7 +90,7 @@ public double measureDistance() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         values[0] = (float) measureDistance();
     }
 

src/main/java/com/pi4j/drivers/sensor/geospatial/lsm9ds1/Lsm9ds1Driver.java

@@ -88,7 +88,7 @@ public SensorDescriptor getDescriptor() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         registerAccess.readRegister(Register.OUT_X_L_XL,  buffer.array(), 0, 6);
 
         values[0] = buffer.getShort(0) * accelerometerRange.ms2/ Short.MAX_VALUE;

src/main/java/com/pi4j/drivers/sensor/geospatial/lsm9ds1/Lsm9ds1MagnetometerDriver.java

@@ -68,7 +68,7 @@ public SensorDescriptor getDescriptor() {
     }
 
     @Override
-    public void readMeasurement(float[] values) {
+    public void readMeasurement(double[] values) {
         // Request single measurement
         setRegisterBits(Register.CTRL_REG3_M, 1, 0, 1);