shelly: 2 channel shelly (#3021)

* shelly: 2 channel shelly

* fix

* fix alphabetical index

Author: LKuemmel

packages/modules/devices/shelly/shelly/bat.py

@@ -66,6 +66,8 @@ def update(self) -> None:
             elif "em:0" in status:
                 meters = status['em:0']
                 for i in range(0, 3):
+                    if meters.get(f'{alphabetical_index[i]}_current') is None:
+                        continue
                     currents[(i+self.phase-1) % 3] = (float(meters[f'{alphabetical_index[i]}_current']) * self.factor
                                                       if meters.get(f'{alphabetical_index[i]}_current') else 0)
                 power = float(meters['total_act_power']) * self.factor

packages/modules/devices/shelly/shelly/counter.py

@@ -82,6 +82,8 @@ def update(self) -> None:
                 power_factors = [0.0, 0.0, 0.0]
                 meters = status['em:0']
                 for i in range(0, 3):
+                    if meters.get(f'{alphabetical_index[i]}_act_power') is None:
+                        continue
                     powers[(i+self.phase-1) % 3] = (float(meters[f'{alphabetical_index[i]}_act_power']) * self.factor
                                                     if meters.get(f'{alphabetical_index[i]}_act_power') else 0)
                     voltages[(i+self.phase-1) % 3] = (float(meters[f'{alphabetical_index[i]}_voltage'])

packages/modules/devices/shelly/shelly/inverter.py

@@ -56,15 +56,15 @@ def update(self) -> None:
             elif "emeters" in status:
                 meters = status['emeters']  # shellyEM & shelly3EM
                 # shellyEM has one meter, shelly3EM has three meters
-                for i in range(0, 3):
+                for i in range(len(meters)):
                     currents[(i+self.phase-1) % 3] = (float(meters[i]['current']) * self.factor
                                                       if meters[i].get('current') else 0)
                     power = power + (float(meters[i]['power'] * self.factor))
             # GEN 2+
             # shelly Pro3EM
             elif "em:0" in status:
                 meters = status['em:0']
-                for i in range(0, 3):
+                for i in range(len(meters)):
                     currents[(i+self.phase-1) % 3] = (float(meters[f'{alphabetical_index[i]}_current']) * self.factor
                                                       if meters.get(f'{alphabetical_index[i]}_current') else 0)
                 power = float(meters['total_act_power']) * self.factor