You are reading a single comment by @user98241 and its replies.
Click here to read the full conversation.
-
Wed 2019.07.31
'doing analogRead() on any pin (even empty ones)'
Doesn't hurt to verify what mode the pins being checked actually are:
In addition to the comments in #7 concerning powering, how is the DHT11 grounded to the Pixl? A floating ground might be an issue with the randomness that is observed.
Robin
@user98241
Hi all,
Thanks for all your help! Will definitely look through those links, and I've gotten a much better understanding of how everything works.
Double checked, and I was using the correct DHT11 module after all, but even so, shouldn't it still be returning some kind of raw value? When doing analogRead(D3), a value is returned, although not sure if it's correct because doing analogRead() on any pin (even empty ones) seem to return a value around 0.9.
This is the arduino shield and temperature + humidity sensor being used:
http://wiki.seeedstudio.com/Grove_Smart_Plant_Care_Kit/