I have bayesian sensors that detect when each of us are in bed, and also use history stat sensors to tell how long we’ve been in bed each day 
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Hey there, I have one to turn on the lights to feed the dogs and that’s it, I even have a nfc tag reader with a nodemcu working but bo ideas so far
An NFC tag is stuck to the back of the TV remote control. It switches on two sockets and thus the TV, the receiver and the floor lamp if it is dark outside.
In the cars, there are also some stuck to the sun visors to open the garage doors.
I can think of a lot more but my wife will soon go crazy :-))
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I’m new to home assistant and the NFC tags arrive in 2 days… but I plan to:
- have 3 tags on the washing machine for the 3 timeframes I typically use to (somehow) start an automation that broadcasts to the Sonos that the washing machine is done
- have tags that when scanned add items to my shopping list
- sends a message to the sonos to say dinner is ready through the house.
Basically try automate routines that are not already connected to HA
I have one inside my car. Scanning it toggles my garage door open or closed. By far the most useful NFC tag automation I’ve setup.
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I made an automatic reminder for my allergic wife. She needs to take 1 pill every 24 hours so I made an automation that sends an unremovable notification to her phone that tells her to take the pill and it can be removed only by scanning an nfc tag on the pill box.
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thats not bad idea since its easier to do that then take out the remote lol
I’ve setup a few so far which I’m fond of:
Washing Machine:
2 tags for each of the commonly used programmes, plus one to tell HA I’ve emptied the machine.
These tell HA to start a timer for the length of the programme and notifies me when a load is done, and can remind me if I haven’t emptied it, on my dash I have:
I also have ones for the oven, so I have a selection of NFC tags for different timers, which set the oven timer running, and toggle ‘oven is on’ - this then tells me when I need to check the oven and when done scan a tag to end timers and set oven off.
And as mentioned before, also great for medication reminders - I get nagged repeatedly until I scan the NFC on my meds to clear it. 
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Do you feel like sharing the laundry automations you have made? I’m working on creating the same myself right now.
@ChaoticUnreal I haven’t got round to working out how to make it into a proper blueprint, but hopefully these screenshots will give some hints on how I do it.
Automation for when I scan NFC for a particular programme:
alias: "[Kitchen] Washing Machine Mixed Started"
description: ""
trigger:
- platform: tag
tag_id: xxxxxx
condition: []
action:
- service: timer.start
data:
duration: "2:05:0"
target:
entity_id: timer.laundry_time_remaining
- service: input_boolean.turn_off
data: {}
target:
entity_id: input_boolean.washing_machine_is_empty
- service: counter.decrement
data: {}
target:
entity_id: counter.remaining_laundry_pods
- if:
- condition: numeric_state
entity_id: counter.remaining_laundry_pods
below: 12
then:
- service: notify.alexa_media_kitchen
data:
message: Running low on laundry pods - order more now!
mode: single
Automation for when I scan the tag to say I’ve emptied the machine:
alias: "[Kitchen] Washing Machine Emptied"
description: ""
trigger:
- platform: tag
tag_id: xyyyyyyy
condition: []
action:
- service: input_boolean.turn_on
data: {}
target:
entity_id: input_boolean.washing_machine_is_empty
- service: timer.finish
data: {}
target:
entity_id: timer.laundry_time_remaining
- service: notify.alexa_media_kitchen
data:
message: Another load bites the dust
mode: single
Automation to tell me when the timer runs out and it should be finished:
alias: "[Kitchen/Reminder] Empty Washing Machine When Done"
description: ""
trigger:
- platform: state
entity_id:
- timer.laundry_time_remaining
attribute: duration
to: "0"
condition: []
action:
- service: notify.alexa_media_office_dot
data:
message: The washing machine has finished
mode: single
(Note, I know many use things like vibration sensors, or power-monitoring plugs [likely not a good idea for high-watt devices like a washing machine imo] to detect when it’s done instead of using a timer, but I don’t see a need to be that precise with this)
Automation for tapping to start tumbledryer:
alias: "[Kitchen] Tumble Dryer Start"
description: ""
trigger:
- platform: tag
tag_id: xzzzzz
condition: []
action:
- if:
- condition: numeric_state
entity_id: counter.cycles_since_tank_last_emptied
above: 2
then:
- service: notify.alexa_media_kitchen
data:
message: >-
Empty the water tank first! I'll wait a minute before starting the
timer!
- delay:
hours: 0
minutes: 1
seconds: 0
milliseconds: 0
- service: timer.start
data:
duration: "1:42:00"
target:
entity_id: timer.tumble_dryer_time_remaining
- service: input_boolean.turn_off
data: {}
target:
entity_id: input_boolean.tumble_dryer_is_empty
- service: counter.increment
data: {}
target:
entity_id: counter.cycles_since_tank_last_emptied
mode: single
Hope that helps - If you manage to refine it, I’d love to see what you come up with too!
Thanks should be perfect for what I need.
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Just starting with tags in HA. Question what happens if someone else e.g. the neighbor scans the tag?
It would just not do anything cause the tag basically sends a request to home assistant via tha app to trigger the automation. If they are not logged in the app to your home assistant assistant, it will just be ignored
Is there anything that would prevent someone from copying someone’s tag?
I guess it’s not really worse than giving people unique codes that could be shared (on purpose or accidentally).
Additionally you can specify in automation from which device_id it can be triggered, limiting it also for allowed users.
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Interesting, how will you do?
Here is sample automation limiting trigger to just one phone:
- alias: 'Toggle lights on NFC'
initial_state: true
trigger:
platform: event
event_type: tag_scanned
event_data:
tag_id: 93182830-f2c9-4557-9ffa-94ebce875b19
device_id: E6AB6277-7D64-41FC-8A75-73B5F88240D2
action:
service: light.toggle
entity_id: light.mirek_office
Key is device_id of device used for scanning the tag. You can get it from Developer Tools by listening to tag_scanned service and checking output while scanning tag with designated phone.
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