better error messages

flxdot · Apr 18, 2024 · f358a38 · f358a38
1 parent 662fae2
commit f358a38
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/lib/py_edge_device/carlos/edge/device/io/_dhtxx.py b/lib/py_edge_device/carlos/edge/device/io/_dhtxx.py
@@ -134,14 +134,15 @@ def read(self) -> dict[str, float]:
 
         # Reading the DHT sensor is quite unreliable, as the device is not a real-time
         # device. Thus, we just try it a couple of times and fail if it does not work.
+        last_error = None
         for i in range(16):
             try:
                 temperature, humidity = self._dht.read()
                 return {
                     "temperature": temperature,
                     "humidity": humidity,
                 }
-            except RuntimeError:
-                pass
+            except RuntimeError as ex:
+                last_error = ex
 
-        raise RuntimeError(f"Could not read {self._dht_type} sensor.")
+        raise last_error