I have been testing my latest node for a couple weeks. It's a node with a double relay, a DHT22, one reed switch and one motion sensor (HC-SR501), with repeater function. It is intended for maneuvering my garage door. And should be situated in my garage (of course) and the reason for repeater function is that I also have a temp node at my fridge in the garage that some times is not reaching my gateway. This new node is placed halfway between the gateway and fridge node.
It has been standing in the garage at the same distance as final mounting place and I have been logging the function. And all have been working perfectly.
But yesterday I mounted it and connected the garage door to the relay and extended the reed wires (4 meters), and now the motion sensor (not changed at all) is reporting motion every 20 minutes.
So last night I found this thread:
New nodes, new problems Motion sensor [Solved]
wich reports the exact same behavior.
But @xydix solved the problem with replacing the PIR from another model to the one I am using. Others suggest it is a power problem.
So I thought it was due to the reed switch. That was not tested at "closed" for a longer period under testing. Drawing current when the switch was closed.
But I disconnected it again, and no change. Still reporting motion every 20 minutes.
Any one having any ideas what I should do next?
The only remaining differences from testing period is location. I was standing on a shelf before, and now it is placed in the sealing, with the same distance to the gateway (about 7 meters)
And if it is power issue due to radio radio transmissions (as suggested in the earlier mentioned thread) why is it only on discover request broadcast, and not when the node is sending data from DHT22 or reed, or when I send data to the node for maneuvering the relays?