{"action":"closed","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2639","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2639/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2639/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/2639/events","html_url":"https://github.com/MarlinFirmware/Marlin/issues/2639","id":107848035,"number":2639,"title":"Serial controlled hot end and temp sensor?","user":{"login":"delphikwok","id":11090728,"avatar_url":"https://avatars.githubusercontent.com/u/11090728?v=3","gravatar_id":"","url":"https://api.github.com/users/delphikwok","html_url":"https://github.com/delphikwok","followers_url":"https://api.github.com/users/delphikwok/followers","following_url":"https://api.github.com/users/delphikwok/following{/other_user}","gists_url":"https://api.github.com/users/delphikwok/gists{/gist_id}","starred_url":"https://api.github.com/users/delphikwok/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/delphikwok/subscriptions","organizations_url":"https://api.github.com/users/delphikwok/orgs","repos_url":"https://api.github.com/users/delphikwok/repos","events_url":"https://api.github.com/users/delphikwok/events{/privacy}","received_events_url":"https://api.github.com/users/delphikwok/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-09-23T04:37:34Z","updated_at":"2015-09-25T10:57:00Z","closed_at":"2015-09-25T10:57:00Z","body":"Hi,\r\nI noticed that the 1.1RC can support up to 4 extruder. Means it needs 4 pairs of high current wire for the hot ends and 4 pairs low current wire for temp sensors plus fans. And don't forgot hoses for the far end extruder. The increase of wire and hose may increase weight of the moving part. Is it possible to control the hot end and temp sensor and fans by rs232 or UART. Then we just need a pair of power and a pair of TX,RX. 4 wires can control numbers of hotend and temp sersor. Any idea?\r\n\r\nDelphi"}}