Add __str__ member

cpdctrl/led_control_device/base.py

@@ -43,3 +43,7 @@ class LedControlDevice(ABC):
         None.
         """
         pass
+
+    @abstractmethod
+    def __str__(self):
+        pass

cpdctrl/led_control_device/impl/test.py

@@ -12,3 +12,6 @@ class TestLedControlDevice(LedControlDevice):
 
     def set_level(self, level: int):
         pass
+
+    def __str__(self):
+        return "Dummy Led Controller"

cpdctrl/led_control_device/impl/thorlabs_dc2200.py

@@ -45,3 +45,6 @@ class DC2200(LedControlDevice):
         rm = pyvisa.ResourceManager()
         instr = rm.open_resource(name)
         return DC2200(instr)
+
+    def __str__(self):
+        return "Thorlabs DC2200"

cpdctrl/led_control_device/impl/thorlabs_ledd1b.py

@@ -45,6 +45,9 @@ class LEDD1B(LedControlDevice):
         else:
             raise ValueError(f"LEDD1B Led controller can only set 0% or 100%")
 
+    def __str__(self):
+        return "Thorlabs LEDD1B"
+
    
 if __name__ == '__main__':
     led = LEDD1B()

cpdctrl/voltage_measurement_device/base.py

@@ -51,3 +51,6 @@ class VoltageMeasurementDevice(ABC):
 
         """
         pass
+    @abstractmethod
+    def __str__(self):
+        pass

cpdctrl/voltage_measurement_device/impl/keithley2700.py

@@ -256,3 +256,5 @@ class Keithley2700(VoltageMeasurementDevice):
         instr = rm.open_resource(name)
         return Keithley2700(instr)
 
+    def __str__(self):
+        return "Keithley 2700"

cpdctrl/voltage_measurement_device/impl/test.py

@@ -52,3 +52,6 @@ class TestVoltageMeasurementDevice(VoltageMeasurementDevice):
 
         """
         pass
+
+    def __str__(self):
+        return "Simulated Voltage Measurement Device"