[{"data":1,"prerenderedAt":287},["ShallowReactive",2],{"project-8380817":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":5,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":21,"keywords":22,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":45,"post_text":47,"what":48,"said":66,"maker_in_thread":156,"shape":158,"grid":162,"attempts":250,"same_week":251,"maker_shows":33,"maker_hidden":279,"reader_version":280,"card":281},"8380817","newfangled.me","A Google Calendar Door Sign","title","Show HN: A Google Calendar Door Sign","http:\u002F\u002Fnewfangled.me\u002Fdoor-sign\u002F","alfo",1411936055,2014,142,33,179,2272,8,"notable","productivity","calendar display","hardware",[23,24,25,26,27],"google calendar","door sign","e-ink display","meeting room booking","spark core","mixed",-0.037,{"positive":31,"neutral":32,"mixed":33,"critical":34},5,10,1,6,22,{"idea":37,"design":39,"privacy":40,"execution":42,"pricing":43,"performance":44},{"positive":38,"critical":38},2,{"positive":38,"critical":33},{"positive":41,"critical":33},0,{"positive":33,"critical":41},{"positive":41,"critical":33},{"positive":41,"critical":33},[31,46,41,46,46,33,41,41,33,46,41,46,41,46,41,41,41,31,46,33,33,33,46,46,31,46,31,46,41,41,41,31,33],3,null,{"problem":47,"audience":47,"pricing":47,"motivation":47,"time_to_build":47,"stack":49,"openness":65,"stage":65,"team_size":65},[50,58],{"value":51,"source":52,"evidence":53},"Spark Core (ARM Cortex M3 with WiFi)","commenter",[54],{"id":55,"by":56,"text":57},"8380927","bborud","Spark core is a low power ARM Cortex M3-based board with WiFi onboard. Very neat. I can give you several good reasons why it is more useful to do this with a Spark core (or an…",{"value":59,"source":52,"evidence":60},"Linear voltage regulator on 9V battery",[61],{"id":62,"by":63,"text":64},"8383269","dlsym","To power this with a battery a better solution would be to use a switching power supply. (For example a LTC3525 step up converter with two AA 1.5 V batteries.) The linear voltage…","unknown",{"praise":67,"objections":90,"requests":109,"questions":124,"alternatives":129},[68,79],{"value":69,"source":52,"evidence":70},"Commenters liked the idea as a meeting room solution",[71,75],{"id":72,"by":73,"text":74},"8381066","lifeisstillgood","Way back before the WWW my student dorm door was plastered in misc comics and clippings - I kept cycling the clippings and being part if a high traffic corridor it got me a…",{"id":76,"by":77,"text":78},"8381304","dag11","I made something very similar using an Arduino Ethernet (using Power Over Ethernet). For the same reasons you mentioned, I totally recommend your way over mine; the Arduino was…",{"value":80,"source":52,"evidence":81},"Seen as a fun DIY experiment",[82,86],{"id":83,"by":84,"text":85},"8380991","jonalmeida","There was a team at Hack The North that accomplished this similar thing but with using Facebook's Events API and NFC. This sounds like a fun experiment to try out. Cheers!",{"id":87,"by":88,"text":89},"8381778","atmosx","I can probably do that on a bifferboard[1]. I own one that it's out of use now, but still I'd so so much more potential on a RPi. Anyway it's good to have choices! I'd probably…",[91,98],{"value":92,"source":52,"evidence":93},"People book rooms from their desks, not the door",[94],{"id":95,"by":96,"text":97},"8381112","Edd314159","I worked for a very large software corporation for a few years, and we had exactly this. Little touchscreen LCD displays to the side of the door for all the major meeting rooms,…",{"value":99,"source":52,"evidence":100},"Commercial door-panel products already exist",[101,105],{"id":102,"by":103,"text":104},"8382822","kimburgess","There is. In fact there's a whole suite of products out there serving it. At the base level you have DIY solutions (small LCD's, e-ink etc) which are loads of fun to build and…",{"id":106,"by":107,"text":108},"8380958","BHSPitMonkey","I've been in a few buildings where each door had a fat 15\" LCD screen mounted beside it, displaying current and upcoming reservations. Even at my university they were beginning…",[110,117],{"value":111,"source":52,"evidence":112},"Larger e-ink displays for hacking",[113],{"id":114,"by":115,"text":116},"8380943","joshu","I wish there were larger eink displays available for hacking.",{"value":118,"source":52,"evidence":119},"Show a full day or week schedule on e-paper",[120],{"id":121,"by":122,"text":123},"8380920","bluthru","There might be a market for an e-paper based version of this that shows an entire day or week of schedule.",[125],{"value":126,"source":52,"evidence":127},"Can a battery power supply be made more efficient",[128],{"id":62,"by":63,"text":64},[130,138,142,149],{"value":131,"source":52,"evidence":132},"AMX and Crestron room scheduling panels",[133,137],{"id":134,"by":135,"text":136},"8381069","robmiller","Or AV designers hired by the architects that specify these products for projects. Most commonly these are something like Crestron[1] or AMX[2] room scheduling panels. [1]…",{"id":102,"by":103,"text":104},{"value":139,"source":52,"evidence":140},"Eventboard and Condeco",[141],{"id":102,"by":103,"text":104},{"value":143,"source":52,"evidence":144},"BookingBubble",[145],{"id":146,"by":147,"text":148},"8403353","BogdanUK","This sounds like a very nice DIY project but if you like to check it on your phone you can try bookingbubble | meeting room booking system (http:\u002F\u002Fwww.bookingbubble.com\u002F)",{"value":150,"source":52,"evidence":151},"Electric Imp",[152],{"id":153,"by":154,"text":155},"8381094","jonemo","A similar product that has been around for a little longer is electricimp (http:\u002F\u002Fwww.electricimp.com). I've done a couple of little projects with it at home, but is has also…",{"comments":41,"answered":41,"key":157},[],{"commenters":159,"max_depth":31,"maker_replies":41,"first_comment_mins":160,"lifespan_hours":161},28,24,98,[163,165,167,170,172,175,179,183,187,190,192,195,196,197,200,202,204,206,208,212,216,218,220,224,226,228,229,230,234,237,241,244,245],[72,41,31,164,73,41],"project\u002Fpositive\u002Fidea",[95,41,46,166,96,41],"project\u002Fneutral\u002Fidea",[168,41,41,169,73,41],"8384891","commenter\u002Fneutral\u002Fnone",[121,33,46,171,122,41],"project\u002Fneutral\u002Fdesign",[173,33,46,166,174,41],"8380933","masonhensley",[176,33,33,177,178,41],"8380940","project\u002Fcritical\u002Fprivacy","100timesthis",[180,33,41,181,182,41],"8381251","other\u002Fneutral\u002Fnone","jrockway",[184,33,41,185,186,41],"8381271","commenter\u002Fneutral\u002Fprivacy","nkozyra",[188,33,33,189,178,41],"8387875","project\u002Fcritical\u002Fidea",[114,33,46,191,115,41],"project\u002Fneutral\u002Fnone",[193,33,41,181,194,41],"8381123","j_s",[106,33,46,166,107,41],[134,33,41,181,135,41],[198,33,46,191,199,41],"8381708","bduerst",[102,33,41,201,103,41],"other\u002Fneutral\u002Fidea",[203,33,41,181,73,41],"8384918",[205,33,41,181,103,41],"8385606",[76,38,31,207,77,41],"project\u002Fpositive\u002Fexecution",[209,46,46,210,211,41],"8382102","project\u002Fmixed\u002Fpricing","rcarmo",[213,46,33,214,215,41],"8383334","project\u002Fcritical\u002Fpricing","dwild",[146,217,33,189,147,41],4,[62,31,33,219,63,41],"project\u002Fcritical\u002Fperformance",[221,31,46,222,223,41],"8383486","project\u002Fneutral\u002Fperformance","sp332",[225,34,46,171,88,41],"8380871",[55,34,31,227,56,41],"project\u002Fpositive\u002Fdesign",[153,34,46,191,154,41],[87,34,31,227,88,41],[231,34,46,232,233,41],"8381344","project\u002Fneutral\u002Fexecution","zsupalla",[235,34,41,169,236,41],"8381389","Everlag",[238,239,41,181,240,41],"8381354",7,"brianbreslin",[242,239,41,169,243,41],"8382174","mctx",[83,17,31,164,84,41],[246,247,33,248,249,41],"8381764",9,"project\u002Fcritical\u002Fdesign","jammy47",[],[252,256,261,265,270,275],{"id":253,"name":254,"points":255,"category":19},"8395689","Taiga",436,{"id":257,"name":258,"points":259,"category":260},"8368199","Javelin Browser",373,"consumer_social",{"id":262,"name":263,"points":264,"category":19},"8373914","Airtable",361,{"id":266,"name":267,"points":268,"category":269},"8395556","Duckling",136,"languages",{"id":271,"name":272,"points":273,"category":274},"8388935","Realm for Android",108,"data",{"id":276,"name":277,"points":278,"category":19},"8384110","Moo.do",84,false,"v2",{"id":282,"name":5,"line":6,"ai":279,"cat":19,"year":12,"points":13,"comments":14,"rec":28,"s":283,"top":17,"kw":284,"maker":10,"domain":5,"tier":18,"attempts":41,"strip":285,"url":9,"mix":286,"praise":69,"objection":92,"sub":20},8380817,-0.04,[23,24,25,26,27],"530331001303030005311133535300051",[31,32,33,34],1793990912910]