Wrap reading in try/except

src/pi/temp_sensor/temp_sensor/temp_sensor.py

@@ -17,13 +17,16 @@ def __init__(self) -> None:
         self.timer = self.create_timer(timer_period, self.timer_callback)
 
     def timer_callback(self) -> None:
-        self.sensor.read()
-        temp_reading = self.sensor.temperature()
-
-        # If any of the sensors detect water, send true to /tether/flooding
-        msg = Temperature()
-        msg.reading = temp_reading
-        self.publisher.publish(msg)
+        try:
+            self.sensor.read()
+            temp_reading = self.sensor.temperature()
+
+            # If any of the sensors detect water, send true to /tether/flooding
+            msg = Temperature()
+            msg.reading = temp_reading
+            self.publisher.publish(msg)
+        except OSError:
+            print('Failed to read temperature, skipping this read')
 
 
 def main(args: None = None) -> None:

src/pi/temp_sensor/temp_sensor/temp_sensor_dry_run.py

@@ -9,12 +9,16 @@ def debug_log() -> None:
     sensor.init()
 
     while True:
-        sensor.read()
-        print(
-            sensor.temperature(),  # Get temperature in default units (Centigrade)
-            '\t',
-            sensor.temperature(tsys01.UNITS_Farenheit)
-        )
+        try:
+            sensor.read()  # Sometimes throws OSError: [Errno 121] Remote I/O error
+            print(
+                sensor.temperature(),  # Get temperature in default units (Centigrade)
+                '\t',
+                sensor.temperature(tsys01.UNITS_Farenheit)
+            )
+        except OSError:
+            print('Failed to read temperature, trying again')
+
         sleep(1)