Two black wires are required for an HS200

@C2Q2 the HS210 is for a 3 way switch (two switches controlling 1 light) and you should have another wire called the traveler wire. Its usually red. Do you have it? You should have black, white,...

Anyone know if the Smartthings button will work with the smart home router in the M9? Ryan

@Harald_B the 30% idea got me thinking about doing something similar. I assume you have a dimmable light fixture that you are trying to control like this right? With a HS220? I'm wondering if you can...

@geibn1 have you run another test on a set time? Like set up a test to turn on at 1pm and off at 1:02pm then watch it to see if the off works. 3ways are tricky one time I had mine wired up wrong and...

@Harald_B I bought a Samsung Smartthings motion sensor to do what you are describing. However you have to have the TP-Link SR20 smart home router or a Deco M9 with a smart router built in. It been a...