add timeout while waiting for i2c calls

2021-11-12 15:12:51 +03:00 · 2021-11-12 15:12:51 +03:00 · 93986d9767
commit 93986d9767
parent 585a130ecd
1 changed files with 6 additions and 2 deletions
--- a/8
+++ b/8
@ -38,8 +38,12 @@ async def handle_client(reader, writer):
            break

        if request == 'read':
-            rh, temp = await si7021_read()
-            data = dict(humidity=rh, temp=temp)
+            try:
+                rh, temp = await asyncio.wait_for(si7021_read(), timeout=3)
+                data = dict(humidity=rh, temp=temp)
+            except asyncio.TimeoutError as e:
+                logger.exception(e)
+                data = dict(error='i2c call timed out')
        else:
            data = dict(error='invalid request')