mod: improve ArduinoAlvik Error handling

mod: removed sys module dependency
fix: lab for micropython crashes after sys.exit(-2) on Win & MP1.24

Author: eigen-value

arduino_alvik/arduino_alvik.py

@@ -1,4 +1,3 @@
-import sys
 import struct
 from machine import I2C
 import _thread
@@ -231,12 +230,15 @@ def _idle(self, delay_=1, check_on_thread=False, blocking=False) -> None:
             self.i2c.set_single_thread(False)
             if self.is_on():
                 print("\n********** Alvik is on **********")
-        except KeyboardInterrupt:
+        except KeyboardInterrupt as e:
             self.stop()
-            sys.exit()
-        except Exception as e:
-            pass
+            raise e
+        except OSError as e:
             print(f'\nUnable to read SOC: {e}')
+            raise e
+        except Exception as e:
+            print(f'\nUnhandled exception: {e} {type(e)}')
+            raise e
         finally:
             LEDR.value(1)
             LEDG.value(1)
@@ -285,8 +287,8 @@ def begin(self) -> int:
         self._snake_robot(1000)
         self._wait_for_ack()
         if not self._wait_for_fw_check():
-            print('\n********** PLEASE UPDATE ALVIK FIRMWARE (required: '+'.'.join(map(str,self._required_fw_version))+')! Check documentation **********\n')
-            sys.exit(-2)
+            self.stop()
+            raise Exception('\n********** PLEASE UPDATE ALVIK FIRMWARE (required: '+'.'.join(map(str,self._required_fw_version))+')! Check documentation **********\n')
         self._snake_robot(2000)
         self.set_illuminator(True)
         self.set_behaviour(1)

examples/communication/modulino.py

@@ -14,8 +14,7 @@
 pixels = ModulinoPixels(alvik.i2c)
 
 if not pixels.connected:
-    print("🤷 No pixel modulino found")
-    sys.exit(-2)
+    raise Exception("🤷 No pixel modulino found")
 
 while True:
     try: