fix warning

1 files changed, 1 insertions, 1 deletions

diff --git a/mush.ino b/mush.ino
index 6c2688f..e90847e 100644
--- a/mush.ino
+++ b/mush.ino
@@ -98,7 +98,7 @@ SensorState *sensors[] = { &temperatureSensor, &humiditySensor, &photoSensor, &c
 
 void sensor_loop()
 {
-  for (int i=0; i<sizeof(sensors)/sizeof(sensors[0]); ++i)
+  for (size_t i=0; i<sizeof(sensors)/sizeof(sensors[0]); ++i)
   {
     sensors[i]->sense();
   }