Add multiple read to ir sensor

compLib/IRSensor.py

@@ -36,6 +36,29 @@ class IRSensor(object):
         MetricsLogging.put("Infrared", result, sensor)
         return result
 
+    @staticmethod
+    def read_all():
+        """Read all IR sensors at once.
+        This is faster than read as it only uses one SPI call for all sensors!
+
+        :return: Tuple of all current ir sensors
+        """
+
+        sensors = Spi.read_array(Register.IR_1_H, 5 * 2)
+
+        sensor_1 = int.from_bytes(
+            sensors[0:2], byteorder='big', signed=False)
+        sensor_2 = int.from_bytes(
+            sensors[2:4], byteorder='big', signed=False)
+        sensor_3 = int.from_bytes(
+            sensors[4:6], byteorder='big', signed=False)
+        sensor_4 = int.from_bytes(
+            sensors[6:8], byteorder='big', signed=False)
+        sensor_5 = int.from_bytes(
+            sensors[8:10], byteorder='big', signed=False)
+
+        return (sensor_1, sensor_2, sensor_3, sensor_4, sensor_5)
+
     @staticmethod
     def set(sensor: int, on: bool):
         """Turn on / off a IR emitter