{"action":"created","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5482","repository_url":"https://api.github.com/repos/MarlinFirmware/Marlin","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5482/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5482/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5482/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5482","id":195080548,"number":5482,"title":"MINTEMP limitation prevents operation at 0 or sub 0 temperatures. ","user":{"login":"AndKe","id":1468842,"avatar_url":"https://avatars.githubusercontent.com/u/1468842?v=3","gravatar_id":"","url":"https://api.github.com/users/AndKe","html_url":"https://github.com/AndKe","followers_url":"https://api.github.com/users/AndKe/followers","following_url":"https://api.github.com/users/AndKe/following{/other_user}","gists_url":"https://api.github.com/users/AndKe/gists{/gist_id}","starred_url":"https://api.github.com/users/AndKe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AndKe/subscriptions","organizations_url":"https://api.github.com/users/AndKe/orgs","repos_url":"https://api.github.com/users/AndKe/repos","events_url":"https://api.github.com/users/AndKe/events{/privacy}","received_events_url":"https://api.github.com/users/AndKe/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-12-12T20:44:04Z","updated_at":"2016-12-12T21:14:53Z","closed_at":null,"body":"I am using #define HEATER_0_MINTEMP 1\r\nwith temp sensor #define TEMP_SENSOR_0 1 (100k)\r\n\r\nThe printer is in unheated storage (pretty automated)  so the room temperature during winter is often 0 or maybe less degree.\r\n- so it goes into mintemp error. (and OctoPi has trouble communication with it)\r\n\r\nProblem is:\r\nIf I configure \"*_MINTEMP -10\" - which would solve the problem , then MINTEMP is never triggered.  It simply does not handle negative temperatures.\r\n\r\n-of course, I will not disable this great safety feature.\r\n-the best solution would be to handle negative \"mintemp\"\r\n-also: when mintemp message is displayed/sent , it should contain one important thing; the actual temperature that triggered the safety logic.  \r\nDisplaying this information would also allow the mintemp to be properly configured, by allowing user to disconnect sensor to check what the reading is with sensor disconnected.\r\n"},"comment":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/comments/266554738","html_url":"https://github.com/MarlinFirmware/Marlin/issues/5482#issuecomment-266554738","issue_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/5482","id":266554738,"user":{"login":"AndKe","id":1468842,"avatar_url":"https://avatars.githubusercontent.com/u/1468842?v=3","gravatar_id":"","url":"https://api.github.com/users/AndKe","html_url":"https://github.com/AndKe","followers_url":"https://api.github.com/users/AndKe/followers","following_url":"https://api.github.com/users/AndKe/following{/other_user}","gists_url":"https://api.github.com/users/AndKe/gists{/gist_id}","starred_url":"https://api.github.com/users/AndKe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AndKe/subscriptions","organizations_url":"https://api.github.com/users/AndKe/orgs","repos_url":"https://api.github.com/users/AndKe/repos","events_url":"https://api.github.com/users/AndKe/events{/privacy}","received_events_url":"https://api.github.com/users/AndKe/received_events","type":"User","site_admin":false},"created_at":"2016-12-12T21:14:53Z","updated_at":"2016-12-12T21:14:53Z","body":"Thank you - that's interesting, I do not need any accuracy at the lower end of scale , just a difference between -10 degrees  and \"sensor disconnected\"\r\n- will test."}}
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