{"id":849,"date":"2022-09-16T17:26:20","date_gmt":"2022-09-16T15:26:20","guid":{"rendered":"http:\/\/cln.io\/blog\/?p=849"},"modified":"2024-01-08T11:11:08","modified_gmt":"2024-01-08T09:11:08","slug":"monitoring-rpi-cpu-temp-with-ha","status":"publish","type":"post","link":"https:\/\/cln.io\/blog\/monitoring-rpi-cpu-temp-with-ha\/","title":{"rendered":"Tracking, monitoring host RPI CPU temperature with Home Assistant"},"content":{"rendered":"\n

Most Linux systems give you the current temperature of the CPU when you read the file. \/sys\/class\/thermal\/thermal_zone0\/temp<\/code> <\/p>\n\n\n\n

You will get a single line of text with the temperature as an Integer<\/em>. So you have to divide the result by 1000<\/code> to get the temperature in \u00b0C<\/code><\/p>\n\n\n\n

Knowing this we can make a command_line sensor in HomeAssistant<\/p>\n\n\n\n

FYI: I needed this to evaluate my passive cooling PI case<\/a><\/p>\n\n\n\n

command_line:\n  - sensor:\n      name: CPU Temperature\n      command: \"cat \/sys\/class\/thermal\/thermal_zone0\/temp\"\n      # If errors occur, make sure configuration file is encoded as UTF-8\n      unit_of_measurement: \"\u00b0C\"\n      value_template: \"{{ value | multiply(0.001) | round(1) }}\"<\/pre>\n\n\n\n
Reload home assistant after the addition to the config<\/p>\n\n\n
\n
\"\"
That’s it! you can now monitor the CPU temperature.<\/figcaption><\/figure>\n<\/div>\n\n
\n
\"\"<\/figure>\n<\/div>\n\n\n
\"\"
Photo by alerkiv<\/a> on Unsplash<\/a><\/figcaption><\/figure>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Most Linux systems give you the current temperature of the CPU when you read the file. \/sys\/class\/thermal\/thermal_zone0\/temp You will get a single line of text with the temperature as an Integer. So you have to divide […]<\/p>\n","protected":false},"author":1,"featured_media":854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4,38,36],"tags":[],"class_list":["post-849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automation","category-homeassistant","category-monitoring","category-raspberry"],"_links":{"self":[{"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/posts\/849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/comments?post=849"}],"version-history":[{"count":9,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/posts\/849\/revisions"}],"predecessor-version":[{"id":1488,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/posts\/849\/revisions\/1488"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/media\/854"}],"wp:attachment":[{"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/media?parent=849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/categories?post=849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cln.io\/blog\/wp-json\/wp\/v2\/tags?post=849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}