Enhance LMSController to support LED power measurement and update example.py to reflect new properties; increment version to 1.0.3 in pyproject.toml.

example.py

@@ -32,6 +32,7 @@
 print("Version: ", c.version)
 
 print("Measured LED Current (A):", c.measured_led_current)
+print("Measured LED Power (V):", c.measured_led_power)
 print("Measured Motor 1 Position:", c.measured_motor_1_position)
 print("Measured Motor 2 Position:", c.measured_motor_2_position)
 print("Measured Motor 3 Position:", c.measured_motor_3_position)
@@ -54,10 +55,20 @@
 
 print("LED is active:", c.led_activation)
 print("Instructed LED Current (mA):", c.led_current)
+print("Measured LED Current (mA):", c.measured_led_current)
+c.apply()
+
+input("Setting LED active, power 2.5 V, press enter to continue...")
+c.led_power = 2.5
+c.apply()
+print("Instructed LED Power (V):", c.led_power)
+print("Measured LED Power (V):", c.measured_led_power)
+
 input("Extinguish light, press enter to continue...")
 c.led_activation = False
 c.apply()
 
+
 input("Restoring init values, press enter to continue...")
 c.led_control = init_led_control_mode
 c.led_activation = init_activation

pylmscontroller/pylmscontroller.py

@@ -115,7 +115,8 @@ class MotorState(Enum):
 class Measure(Enum):
     """Possible measure IDs."""
 
-    LED_CURRENT = 0  # Unit A, format F32
+    # LED_CURRENT = 0  # Unit A, format F32
+    LED_POWER = 0  # Unit V, format F32
     MOTOR_1_POSITION = 1  # Format U08
     MOTOR_2_POSITION = 2  # Format U08
     MOTOR_3_POSITION = 3  # Format U08
@@ -133,6 +134,7 @@ class LMSController:
     Class to control an ALPhANOV LMS Controller.
     """
 
+    MAX_IR_LED_POWER_V = 3.3  # V
     MAX_IR_LED_CURRENT_MA = 1000.0  # mA
 
     def __init__(self, dev: str):
@@ -305,30 +307,56 @@ def led_control(self, value: ControlMode):
         self.__write_instruction(Instruction.LED_CONTROL_MODE, val)
 
     @property
-    def led_current(self) -> float:
+    def led_power(self) -> float:
         """
-        Get the LED current in milliamperes.
+        Get the LED power in V (from 0 to 3.3 V).
         """
         val = self.__read_instruction(Instruction.LED_CURRENT, 4)
         return struct.unpack(">f", val)[0]
 
+    @led_power.setter
+    def led_power(self, value: float):
+        if value < 0 or value > self.MAX_IR_LED_POWER_V:
+            raise ValueError(
+                f"Invalid LED power value: {value}, expected between 0 and {self.MAX_IR_LED_POWER_V} V."
+            )
+        val = struct.pack(">f", value)
+        self.__write_instruction(Instruction.LED_CURRENT, val)
+
+    @property
+    def led_current(self) -> float:
+        """
+        Get the LED current in A.
+        """
+        return self.MAX_IR_LED_CURRENT_MA * (self.led_power / self.MAX_IR_LED_POWER_V)
+
     @led_current.setter
     def led_current(self, value: float):
         if value < 0 or value > self.MAX_IR_LED_CURRENT_MA:
             raise ValueError(
                 f"Invalid LED current value: {value}, expected between 0 and {self.MAX_IR_LED_CURRENT_MA} mA."
             )
-        val = struct.pack(">f", value)
-        self.__write_instruction(Instruction.LED_CURRENT, val)
+        self.led_power = value * self.MAX_IR_LED_POWER_V / self.MAX_IR_LED_CURRENT_MA
 
     @property
-    def measured_led_current(self) -> float:
+    def measured_led_power(self) -> float:
         """
-        Get the measured LED current in amperes.
+        Get the measured LED power (in V).
         """
-        val = self.read_measure(Measure.LED_CURRENT, 4)
+        val = self.read_measure(Measure.LED_POWER, 4)
         return struct.unpack(">f", val)[0]
 
+    @property
+    def measured_led_current(self) -> float:
+        """
+        Get the measured LED current.
+        """
+        return (
+            self.measured_led_power
+            * self.MAX_IR_LED_CURRENT_MA
+            / self.MAX_IR_LED_POWER_V
+        )
+
     @property
     def version(self) -> str:
         """

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "pylmscontroller"
-version = "1.0.2"
+version = "1.0.3"
 description = "Python library for Alphanov's LMS Controller"
 authors = [{ name = "mmouchous-ledger", email = "michael.mouchous@ledger.fr" }]
 license = { text = "LGPL-3.0-or-later" }