Node Red Porch Light on Reset Timer if Door Opened Again

Smart light bulbs are probably the outset thing everyone getting into abode automation buys. It is easy to encounter the applications for them – take the lights come up on at night, turn off when you're home, etc. Information technology'southward very satisfying to take the lights react to the 24-hour interval and your activities, and my goal with automating lighting has e'er been to not have to think about information technology, for it to work in the background.

In my initial mail service almost Domicile Assistant and Node-Red, I explained the initial hoops you take to jump through to get both pieces of software upward and running and talking to each other. At present we volition start using them together in some very elementary flows to command lighting, to get a better understanding of how Node-Crimson works, and to start to delve into this powerful tool.

Carve up PERSONALITY

The way I approach making automations is to think of Dwelling house Assistant as a state machine. Information technology's task is to rails all the states of the devices, and to call services to change those states. All the hardware interfacing – the advice between the hub and the device and interpreting that information – is all Home Banana. Home Banana is a giant catalog of data (states) and deportment (services) that Node-Scarlet tin can depict from.

Node-Ruby-red, on the other hand, is our brain. Node-Blood-red performs the logic. Node-Red doesn't accept to keep track of states or know how to talk to a Philips Hue bulb and a Wemo smart switch, Node-Ruby just asks Home Assistant when information technology needs to know the state of something. When Node-Cherry makes a decision, it sends the command (service) back to Habitation Assistant to handle. Node-Red is all about the big moving-picture show.

This simple separation of duties in our automations will make integrating much easier.

LIGHTING Ane: Simple BINARY

I have a light bulb in an awkward clamber infinite that is really hard to reach. Every once in a while I need to attain a breaker in there and tin never find the switch. So I replaced the bulb with a cheap smart bulb and added a door sensor. When the door opens, the low-cal comes on, when information technology'due south closed, the light is off.

[{"id":"70a001ee.bfd2e","blazon":"server-state-changed","z":"18835ede.3f82d1","proper name":"Crawl Space Door","server":"8ac3cd7f.58d3e","entityidfilter":"binary_sensor.crawl_space_door","haltifstate":"","x":131.4206886291504,"y":544.5259022712708,"wires":[["d0ccbd28.cb728"]]},{"id":"d0ccbd28.cb728","type":"switch","z":"18835ede.3f82d1","name":"","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"on","vt":"str"},{"t":"eq","five":"off","vt":"str"}],"checkall":"true","outputs":2,"x":299.98705673217773,"y":544.2827610969543,"wires":[["5e9a8806.36d148"],["6123b169.361c9"]]},{"id":"5e9a8806.36d148","type":"api-call-service","z":"18835ede.3f82d1","proper name":"ON","server":"8ac3cd7f.58d3e","service_domain":"light","service":"turn_on","data":"{\"entity_id\":\"lite.crawl_space\"}","x":444.8025550842285,"y":516.2688345909119,"wires":[]},{"id":"6123b169.361c9","type":"api-phone call-service","z":"18835ede.3f82d1","name":"OFF","server":"8ac3cd7f.58d3e","service_domain":"homeassistant","service":"turn_off","data":"{\"entity_id\":\"lite.crawl_space\"}","x":445.87427139282227,"y":567.6973919868469,"wires":[]},{"id":"8ac3cd7f.58d3e","type":"server","z":"","name":"Dwelling Assistant","url":"http://localhost:8123","pass":"XXXXX"}]

Our input is a Home Assistant state node that monitors the door sensor. When a country modify is detected, it's sent as a message to the side by side node, a switch.

If the message (msg.payloadin Node-Scarlet terms) is on, route to output 1, if information technology's off, road to output 2. These outputs end in Home Assistant service calls that turn the light on or off.

You must striking the "DEPLOY" to save and activate your flow.

Congrats, this is the unabridged procedure of creating an automation with Node-Blood-red.

LIGHTING Ii: MOTION TIMER

Allow's do something more interesting. For this example we will need an extra node called stoptimer, which can be installed through "Manage palette" in the Node-Scarlet menu. When stoptimer receives a message, the timer starts. If it receives another message the timer is reset. If it gets a message that says "STOP" then it cancels the timer. Pretty useful.

I have a motion sensor under my function desk-bound, when I sit down the lights come on. If I walk away I want the lights to plough off – say after 20 minutes of no activity.

[{"id":"6b710453.81dbac","blazon":"server-state-changed","z":"4056fc4f.0baa64","name":"Office Motion","server":"8ac3cd7f.58d3e","entityidfilter":"binary_sensor.office_motion","haltifstate":"","x":190,"y":380,"wires":[["994dd149.e4555"]]},{"id":"19caec7f.e0b4d4","type":"stoptimer","z":"4056fc4f.0baa64","duration":"20","units":"Infinitesimal","payloadtype":"num","payloadval":"0","proper name":"20min","x":550,"y":420,"wires":[["a9408fec.408e1"],[]]},{"id":"a9408fec.408e1","type":"api-call-service","z":"4056fc4f.0baa64","name":"OFF","server":"8ac3cd7f.58d3e","service_domain":"homeassistant","service":"turn_off","information":"{\"entity_id\":\"grouping.Office\"}","x":1010,"y":414,"wires":[]},{"id":"fa446f4f.1df58","blazon":"api-call-service","z":"4056fc4f.0baa64","name":"ON","server":"8ac3cd7f.58d3e","service_domain":"homeassistant","service":"turn_on","information":"{\"entity_id\":\"group.Role\"}","ten":1010.1666526794434,"y":373.95236015319824,"wires":[]},{"id":"994dd149.e4555","type":"switch","z":"4056fc4f.0baa64","name":"","property":"payload","propertyType":"msg","rules":[{"t":"eq","five":"on","vt":"str"},{"t":"eq","5":"off","vt":"str"}],"checkall":"true","outputs":2,"x":350,"y":380,"wires":[["19caec7f.e0b4d4","da14546c.577218"],["19caec7f.e0b4d4"]]},{"id":"da14546c.577218","type":"api-current-state","z":"4056fc4f.0baa64","proper noun":"Already On?","server":"8ac3cd7f.58d3e","halt_if":"on","entity_id":"switch.office","x":748,"y":373,"wires":[["fa446f4f.1df58"]]},{"id":"8ac3cd7f.58d3e","type":"server","z":"","name":"Abode Banana","url":"http://localhost:8123","pass":"XXXXX"}]

We've added a few nodes to our first example, let'south follow the flow.

If Office Movement ison, the switch sends information technology down two paths simultaneously:

• A state node that looks upward the state ofgroup.office. If it's alreadyon, the period halts, otherwise the lights are turned on
• Starts or resets the twenty infinitesimal stoptimer if it'south already running. If no other state changes come from the Office Motion sensor, themsg.payload terminates in an off service control.

If Office Motility isoff, information technology starts or resets the timer.

This keeps the lights on as long every bit something is happening with the motility sensor. When in that location's been no activity for 20 minutes, the timer reaches it's conclusion and themsg.payload is sent to the output to turn the light off.

Annotation in the "Already On?" node we tin can halt the menstruation according to the state it returns:

The alternative would exist to utilise a switch node, just this saves us the problem. In Home Assistant terminology, this is equivalent to a condition.

LIGHTING THREE: MOTION, TIME RANGE, & OCCUPANCY

Now that'south we've done two simple examples, let's starting time to show off the real power of Node-Carmine. For this ane nosotros're going to demand another boosted node, the fourth dimension range switch. I'g as well using a meta-motion sensor that shows where Abode Assistant last saw motion.

[{"id":"4876c05d.90497","type":"server-state-changed","z":"4056fc4f.0baa64","proper noun":"Bathroom Motion","server":"8ac3cd7f.58d3e","entityidfilter":"binary_sensor.bathroom_motion","haltifstate":"off","x":220,"y":420,"wires":[["e25bff84.3451d"]]},{"id":"e25bff84.3451d","type":"time-range-switch","z":"4056fc4f.0baa64","name":"After 6AM","lat":"","lon":"","startTime":"06:00","endTime":"23:59","x":403.333309173584,"y":419.9999780654907,"wires":[["e6559f89.5c606","ec4009c3.5b4c48"],[]]},{"id":"e6559f89.5c606","type":"api-current-state","z":"4056fc4f.0baa64","name":"Low-cal Off?","server":"8ac3cd7f.58d3e","halt_if":"on","entity_id":"switch.bathroom_light","x":573.3334007263184,"y":381.33339405059814,"wires":[["13aee75f.de9699"]]},{"id":"13aee75f.de9699","type":"api-call-service","z":"4056fc4f.0baa64","proper noun":"ON","server":"8ac3cd7f.58d3e","service_domain":"switch","service":"turn_on","data":"{\"entity_id\":\"switch.bathroom_light\"}","x":1034.9999504089355,"y":382.99997901916504,"wires":[]},{"id":"1c5dbbe7.4de5e4","blazon":"api-render-template","z":"4056fc4f.0baa64","proper name":"Nevertheless in Bath?","server":"8ac3cd7f.58d3e","template":"{{ states.variable.last_motion.land != 'Bath Motion' }}","x":743.3333396911621,"y":440.0000238418579,"wires":[["67242a38.922154"]]},{"id":"ec4009c3.5b4c48","blazon":"stoptimer","z":"4056fc4f.0baa64","duration":"12","units":"Minute","payloadtype":"num","payloadval":"0","name":"12min","x":560.0000190734863,"y":446.6667079925537,"wires":[["1c5dbbe7.4de5e4"],[]]},{"id":"67242a38.922154","blazon":"switch","z":"4056fc4f.0baa64","name":"","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"Truthful","vt":"str"}],"checkall":"true","outputs":1,"x":908.3333015441895,"y":440.00000286102295,"wires":[["e1e6dad7.9a0dc8"]]},{"id":"e1e6dad7.9a0dc8","type":"api-call-service","z":"4056fc4f.0baa64","proper noun":"OFF","server":"8ac3cd7f.58d3e","service_domain":"homeassistant","service":"turn_off","data":"{\"entity_id\":\"grouping.bathroom\"}","x":1037.5001754760742,"y":440.00003147125244,"wires":[]},{"id":"ed231cde.fc99","type":"server-state-changed","z":"4056fc4f.0baa64","proper noun":"Bathroom Switch Flipped On","server":"8ac3cd7f.58d3e","entityidfilter":"switch.bathroom_light","haltifstate":"off","ten":353.33336639404297,"y":495.0001130104065,"wires":[["ec4009c3.5b4c48"]]},{"id":"8ac3cd7f.58d3e","type":"server","z":"","name":"Habitation Banana","url":"http://localhost:8123","pass":"XXXXX"}]

In my bathroom I've got a move sensor and a Z-Wave wall switch that controls the low-cal. I want the low-cal to turn off afterward 12 minutes of no move, only non if I'm still… taking intendance of business concern. The switch should trigger the aforementioned timer if someone uses it. And also – I don't want to get blinded if I get up in the heart of the dark.

Following the menstruum, the land of the Bath Movement sensor is sent to the fourth dimension-range switch, which will only continue if information technology'southward after 6AM. After that nosotros substantially practise the aforementioned matter every bit the last example, checking to see if the low-cal is already on before calling the light.turn_on service. The stop timer accepts another input from the wall switch if guests use it.

Later the timer concludes, it gets the state of the meta-motion sensor and the switch evaluates if I'chiliad still in the Bathroom before turning the light off.

LIGHTING FOUR: SOLAR Consequence TRIGGER

What about having the lights turn on at dusk? There's more than than 1 node for that. Hither I am using bigtimer because it allows offsetting solar events. You lot can read the documentation for bigtimer, it'south kind of more than complicated than it needs to exist IMO, only it'south useful here for turning my aquarium on at sunset and off at 10pm.

[{"id":"c49b6101.4865","type":"bigtimer","z":"59230ccd.4625e4","outtopic":"","outpayload1":"","outpayload2":"","name":"Sunset","lat":"37.799564008","lon":"-122.268797","starttime":"5004","endtime":"5003","startoff":"-60","endoff":"240","offs":0,"outtext1":"on","outtext2":"off","timeout":1440,"lord's day":truthful,"mon":true,"tue":true,"wed":true,"thu":truthful,"fri":true,"sat":true,"jan":true,"february":truthful,"mar":true,"april":truthful,"may":truthful,"jun":truthful,"jul":true,"aug":true,"sep":true,"oct":true,"nov":true,"december":true,"day1":0,"month1":0,"day2":0,"month2":0,"day3":0,"month3":0,"day4":0,"month4":0,"day5":0,"month5":0,"d1":0,"w1":0,"d2":0,"w2":0,"d3":0,"w3":0,"d4":0,"w4":0,"d5":0,"w5":0,"suspend":false,"random":fake,"repeat":true,"atstart":true,"odd":false,"fifty-fifty":faux,"x":353.75000381469727,"y":428.7500057220459,"wires":[[],[],["c6e50538.2732a8"]]},{"id":"c6e50538.2732a8","blazon":"switch","z":"59230ccd.4625e4","name":"","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"on","vt":"str"},{"t":"eq","v":"off","vt":"str"}],"checkall":"true","outputs":two,"x":593.1337394714355,"y":406.8185729980469,"wires":[["4c8b4d1b.32ece4"],["db50b01e.eea8e"]]},{"id":"893ff0c6.accba","blazon":"api-call-service","z":"59230ccd.4625e4","proper noun":"Turn off Aquarium","server":"8ac3cd7f.58d3e","service_domain":"switch","service":"turn_off","information":"{\"entity_id\":\"switch.aquarium\"}","ten":990.0001640319824,"y":446.24994373321533,"wires":[]},{"id":"4c8b4d1b.32ece4","type":"api-call-service","z":"59230ccd.4625e4","name":"Turn on Aquarium","server":"8ac3cd7f.58d3e","service_domain":"switch","service":"turn_on","data":"{\"entity_id\":\"switch.aquarium\"}","x":989.3838424682617,"y":382.6952495574951,"wires":[]},{"id":"bc733e16.0eb51","blazon":"inject","z":"59230ccd.4625e4","proper name":"10pm","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"00 22 * * *","once":false,"ten":600.6250152587891,"y":444.9523983001709,"wires":[["893ff0c6.accba"]]},{"id":"db50b01e.eea8e","type":"api-current-state","z":"59230ccd.4625e4","name":"Off Already?","server":"8ac3cd7f.58d3e","halt_if":"off","entity_id":"switch.aquarium","x":762.4783706665039,"y":422.348180770874,"wires":[["893ff0c6.accba"]]},{"id":"8ac3cd7f.58d3e","type":"server","z":"","name":"Home Banana","url":"http://localhost:8123","laissez passer":"XXXXXX"}]

MORE LINKS

Hopefully at present you've got a better idea of some of the things that are possible using but a handful of nodes with Abode Assistant. I've got a big list of nodes I've used in dwelling house automation linked below if you lot desire to explore some more.

One of the great things most Node-Red is how easy it is to share flows. Copy from the pastebin link below to go all the flows here and start automating your lights immediately!

• PasteBin of All Flows in this Post
• My Large List of Useful Home Automation Nodes
• Node-Red Flow Search

mitchellnammagay.blogspot.com

Source: https://diyfuturism.com/index.php/2017/12/14/basic-node-red-flows-for-automating-lighting-with-home-assistant/

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