use proper time sleep function in serial _uart_read function

brainelectronics · brainelectronics · commit b43e5dba0c86 · 2022-12-28T23:12:43.000+01:00
diff --git a/umodbus/serial.py b/umodbus/serial.py
@@ -175,7 +175,7 @@ def _uart_read(self) -> bytearray:
                     break
 
             # wait for the maximum time between two frames
-            time.sleep(self._t35chars)
+            time.sleep_us(self._t35chars)
 
         return response
 
