{"id":212,"date":"2019-01-09T12:37:55","date_gmt":"2019-01-09T10:37:55","guid":{"rendered":"https:\/\/lisas.de\/~hauser\/wp\/?p=212"},"modified":"2019-01-08T13:02:24","modified_gmt":"2019-01-08T11:02:24","slug":"cancombase","status":"publish","type":"post","link":"https:\/\/lisas.de\/~hauser\/wp\/?p=212","title":{"rendered":"cancombase"},"content":{"rendered":"\n

With the help of Jonas<\/a> as reviewer I’m one step closer to the solution that was missing in Switch selection<\/a>. The first version of cancombase<\/a> is finsihed. <\/p>\n\n\n\n

The 5×10 cm pcb fits behind the switches in a double plug socket. The 4 pairs in the CAT cable will be used in the following way:<\/p>\n\n\n\n

  1. Connect switch 1 to the miniserver and the backuo system (a post will follow)<\/li>
  2. Power supply 24V (the selected switches need the 24V and I have decided – since I don’t know better – that a buck is easier than a boost)<\/li>
  3. + 4. CAN (Since CAN bus does not allow a star topology it’ll be a long bus with a baud rate of around 100kBaud. Of course this has to be checked after installation. Wikipedia<\/a> indicates that 125 kbit\/s allow up to 500 meters of cable. A rough calculation )<\/li><\/ol>\n\n\n\n

    A description of the PCB is available here<\/a>. It’s based on the arduino pro mini<\/a>. Or an available clone of it. <\/p>\n\n\n\n

    The gap between the now introduced CAN and the loxone miniserver will be filled (most probably) with a rasperry pi<\/a> that converts the CAN messages to UDP messages the miniserver is able to read<\/a>.<\/p>\n\n\n\n

    Apart from reading switch states (maybe with double-click detection) and writing to feedback LEDs the next version of cancombase will also contain a temperature sensor.<\/p>\n","protected":false},"excerpt":{"rendered":"

    With the help of Jonas as reviewer I’m one step closer to the solution that was missing in Switch selection. The first version of cancombase is finsihed. The 5×10 cm pcb fits behind the switches in a double plug socket. The 4 pairs in the CAT cable will be used in the following way: Connect … Continue reading cancombase<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,43,1],"tags":[44,39],"class_list":["post-212","post","type-post","status-publish","format-standard","hentry","category-hardware","category-home-automation","category-uncategorized","tag-cable","tag-loxone"],"_links":{"self":[{"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/posts\/212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=212"}],"version-history":[{"count":6,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/posts\/212\/revisions"}],"predecessor-version":[{"id":218,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=\/wp\/v2\/posts\/212\/revisions\/218"}],"wp:attachment":[{"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lisas.de\/~hauser\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}