OK, this turned out to be a *lot* more complicated than I thought. Here’s what I wanted to do: we have a Hue motion sensor in the bathroom which I’ve set up to do nothing during the day, and then come on at night. Nothing too controversial there. But I wanted to have a 3rd option: for a certain section of the night – say after midnight – to come on at a nightlight setting.<\/p>\n
There’s a ‘3 times a charm formula<\/a>‘ from the Hue Labs which sounded promising, but that only allows you to set the idle time after motion activation. So I started looking at the API. There were a few obvious options I tried which didn’t work [like simply setting the brightness – over-written by whatever scene you have set in the accessory setup].<\/p>\n This article<\/a> set me on the right track for what I needed to do insofar as rule settings. By toggling changes on the smartphone app and then looking at the results in the Clip API debugger I narrowed down the changes to two rules called ‘MotionSensor 5.night-on’ and ‘MotionSensor 5.night-dark-on’. [Obviously the number is dependent on the identifier the sensor is registered under.]<\/p>\n This isn’t enough on its own. I gave up on this after my first pass, waiting for a rainy day to come back to it – today.<\/p>\n I ended up using OWASP ZAP to proxy the Hue app traffic, to see what it was doing when you submit a change to the sensor configuration. That’s quite interesting actually: I was initially a bit puzzled at what looked like a mountain of traffic on first pass, but what in part turns out to be a very zealous keep-alive – roughly twice a second.<\/p>\n Long and short of it is that resetting the scene config using the app overwrites a ‘resourcelink’ with new scene specific values, as well as updating the rules.<\/p>\n I’ve roughed this out with my own iOS app just to check that it works in a way that I can transplant to another setup [a cron job on a Raspberry Pi would be a reasonable candidate]. To toggle on the ‘dim at night after midnight’ setting I make 3 API calls. You’ll need to fiddle around with the clip tool to get the equivalents for your hub – specifically, your sensor number will be different. For me, these are:<\/p>\n For the rules, I Post the same ‘actions’ payload to both of the corresponding endpoints. It looks like:<\/p>\n Then for the resourcelink, I post:<\/p>\n The sensor and rule set you’re linking to will be specific to your own setup.<\/p>\n I’ve no idea what that ‘recover scene’ is. I’m guessing it’s something that’s created when you configure a sensor in the first instance, and is some sort of default state.<\/p>\n There’s a corresponding 3 API calls which I need to make to toggle back to the scene for ‘bright pre-midnight’, replacing the scene ID accordingly.<\/p>\n At the point I gave up – where I was just making the rule changes – I could tell that it wasn’t right by loading up the config in the app. The partial configuration – without the resourcelink change – manifest itself simply as ‘do nothing’ for the nighttime slot. Resetting this restored the full config. I guess there’s always the danger that if you run wild and free with setting values incorrectly, you might invalidate the ruleset to the point where unpicking it could be a problem. All I can say is that the above approach works for me, but test carefully!<\/p>\n","protected":false},"excerpt":{"rendered":" OK, this turned out to be a *lot* more complicated than I thought. Here’s what I wanted to do: we have a Hue motion sensor in the bathroom which I’ve set up to do nothing during the day, and then … Continue reading \n
{\"actions\": [\r\n {\r\n \"address\": \"\/groups\/YourActionNumber\/action\",\r\n \"method\": \"PUT\",\r\n \"body\": {\r\n \"scene\": \"YourDimSceneIDHere\"\r\n }\r\n },\r\n {\r\n \"address\": \"\/sensors\/YourStateNumber\/state\",\r\n \"method\": \"PUT\",\r\n \"body\": {\r\n \"status\": 1\r\n }\r\n }\r\n ]\r\n}\r\n<\/pre>\n{\r\n \"name\": \"MotionSensor 5\",\r\n \"description\": \"MotionSensor 5 behavior\",\r\n \"type\": \"Link\",\r\n \"classid\": 10020,\r\n \"owner\": \"OwnerIDHere\",\r\n \"recycle\": false,\r\n \"links\": [\r\n \"\/sensors\/5\",\r\n \"\/sensors\/6\",\r\n \"\/sensors\/19\",\r\n \"\/groups\/5\",\r\n \"\/rules\/4\",\r\n \"\/rules\/5\",\r\n \"\/rules\/6\",\r\n [etc.....]\r\n \"\/scenes\/YourDimSceneIDHere\",\r\n \"\/scenes\/RecoverRoomSceneIDHere\"\r\n ]\r\n}\r\n<\/pre>\n