Quite useful right? Of course you could create automation to manually click an entity on Home Assistant using app or web browser, but I think a NFC sticker<\/a> works here quite well.<\/p>\n\n\n\n NFC tags can be programmed just by using Home Assistant Companion App (iOS<\/a> or Android<\/a>) and a programmable NFC sticker<\/a>. To write your tag using the companion app can be done by navigating the app to Settings -> Tags -> + Add New -> Fill in the info -> Create and Write<\/em>.<\/p>\n\n\n\n After writing you should get a TAG ID<\/strong> that can then be used in an automation. So store the ID in a text file for a while and then paste it to the automation later. <\/p>\n\n\n\n Now just stick the NFC sticker on the side of selected device.<\/p>\n\n\n\n For this automation we need three items: input_datetime<\/strong> to keep the date of our ‘last cleaned’ status, template sensor<\/strong> to convert this date time to ‘last cleaned<\/em>‘ days and finally an automation<\/strong> to set the last cleaned date into the input_datetime defined previously. <\/p>\n\n\n\n Here’s my package:<\/strong><\/p>\n\n\n\n The configurable variable here is the cycle_clean_days<\/em> that contains the clean cycle in days and tag_id<\/em> that is responsible of resetting the cycle when scanned.<\/p>\n\n\n\n This automation does not contain the reminder itself, but is trivial to implement when needed. I’m using this only to show the due time on my maintenance dashboard rather than getting even more push notifications on my phone.<\/p>\n<\/div>\n\n\n\n There are places where NFC tags can be very useful and one of those is possibly a cleanup reminder! I have Mitsubishi Heat pump which…<\/p>\n","protected":false},"author":1,"featured_media":2599,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[100],"tags":[105,341,340,7,342,344,111,343],"class_list":["post-2576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-assistant","tag-automation","tag-filter","tag-heat-pump","tag-home-assistant","tag-maintenance","tag-maintenance-reminder","tag-nfc","tag-reminder","has-post-thumbnail-archive"],"acf":[],"featured_image_src":"https:\/\/www.creatingsmarthome.com\/wp-content\/uploads\/2023\/12\/heatpump_maintenance.png","author_info":{"display_name":"Toni","author_link":"https:\/\/www.creatingsmarthome.com\/index.php\/author\/topsy\/"},"_links":{"self":[{"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/posts\/2576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/comments?post=2576"}],"version-history":[{"count":20,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/posts\/2576\/revisions"}],"predecessor-version":[{"id":2887,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/posts\/2576\/revisions\/2887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/media\/2599"}],"wp:attachment":[{"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/media?parent=2576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/categories?post=2576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.creatingsmarthome.com\/index.php\/wp-json\/wp\/v2\/tags?post=2576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Creating NFC tag<\/h2>\n\n\n\n
![\"\"](\"https:\/\/www.creatingsmarthome.com\/wp-content\/uploads\/2023\/12\/Screenshot_20231228_115830_Home-Assistant.jpg\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/www.creatingsmarthome.com\/wp-content\/uploads\/2023\/12\/Screenshot_20231228_122142_Home-Assistant.jpg\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/www.creatingsmarthome.com\/wp-content\/uploads\/2023\/12\/Screenshot_20231228_122103_Home-Assistant.jpg\")
<\/figure>\n<\/figure>\n\n\n\nAutomation<\/h2>\n\n\n\n
input_datetime:\n heat_pump_filter_last_cleaned:\n name: Heat Pump filter last cleaned\n has_time: false\n has_date: true\n\ntemplate:\n - sensor:\n - name: \"Heat Pump filter cleanup in days\"\n unique_id: heat_pump_filter_clean\n icon: \"mdi:wrench-clock\"\n state: >\n {%- set cycle = (this.attributes.get('clean_cycle_days', 30) | int) -%}\n {%- set due = strptime(states('input_datetime.heat_pump_filter_last_cleaned'), '%Y-%m-%d' ) + timedelta(days = cycle) -%}\n {{ ((as_timestamp(due) - as_timestamp(now())) | int \/60\/1440) | round(0) }}\n attributes:\n clean_cycle_days: 30 # Cycle amount in days\n\nautomation:\n - id: 'maintenance_set_heatpump_filter_last_cleaned'\n description: \"Maintenance: Reset heat pump filter last cleaned\"\n trigger:\n - platform: tag\n tag_id: f1892138-fe90-442e-8d0b-d1cc356e5d13 # Tag id\n condition: []\n action:\n - service: input_datetime.set_datetime\n data:\n datetime: '{{ now() }}'\n target:\n entity_id: input_datetime.heat_pump_filter_last_cleaned\n mode: single<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/www.creatingsmarthome.com\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-29-at-7.32.05.png\")
<\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"