[{"data":1,"prerenderedAt":874},["ShallowReactive",2],{"project-41980681":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":33,"aspects":34,"strip":48,"post_text":51,"what":52,"said":76,"maker_in_thread":220,"shape":233,"grid":237,"attempts":836,"same_week":837,"maker_shows":46,"maker_hidden":867,"reader_version":868,"card":869},"41980681","Ding Dong Doorbell","An app to use a QR code as my doorbell","title","Show HN: I built an app to use a QR code as my doorbell","https:\u002F\u002Fdingdongdoorbell.com","dingdongdoorbell.com","dirkc",1730189035,2024,140,231,610,3515,18,"notable","consumer_social","doorbell app","mobile_app",[24,21,25,26],"qr code doorbell","visitor notification","qr code","roasted",-0.39,{"positive":18,"neutral":30,"mixed":31,"critical":32},34,5,66,123,{"design":35,"privacy":38,"idea":40,"execution":42,"pricing":44,"performance":45,"docs":47},{"positive":36,"critical":37},0,10,{"positive":36,"critical":39},11,{"positive":18,"critical":41},36,{"positive":36,"critical":43},4,{"positive":36,"critical":43},{"positive":36,"critical":46},1,{"positive":36,"critical":36},[46,46,46,46,43,46,49,46,46,46,36,36,46,49,46,49,49,43,46,50,43,49,49,46,31,46,49,46,50,46,36,50,36,50,46,46,36,36,46,50],2,3,"I didn’t have a doorbell before (multiple reasons) and my house feels unwelcoming without one. So I built a doorbell app that uses a QR code - visitors scan the QR code to ring the doorbell and I get notified on my phone.\n\nHere is an example of the QR code I have on my door. You can scan it and say hello: https:\u002F\u002Fwww.thebacklog.net\u002Fimg\u002F2024\u002F10\u002Fshow-hn.png\n\nThis was also a great excuse to build my first app for Android and iPhone.\n\nI’d love to get some feedback before I spend more time polishing the app. Please try it out and feel free to ask me any questions! No logins or accounts needed.",{"problem":53,"audience":59,"pricing":67,"motivation":68,"time_to_build":67,"stack":72,"openness":73,"stage":74,"team_size":75},{"value":54,"source":55,"evidence":56},"Homes without a doorbell feel unwelcoming and visitors have no way to announce themselves.","maker",[57],{"id":58},"post",{"value":60,"source":61,"evidence":62},"Homeowners without a doorbell and their visitors.","inferred",[63,64],{"id":58},{"id":65,"by":11,"text":66},"41984024","Good point, I'm hoping that this increases access rather than decrease it. In my neighborhood there are plenty of homes without doorbells.",null,{"value":69,"source":55,"evidence":70},"Maker had no doorbell and felt their house unwelcoming without one.",[71],{"id":58},[],"unknown","prototype","solo",{"praise":77,"objections":101,"requests":147,"questions":174,"alternatives":192},[78,90],{"value":79,"source":80,"evidence":81},"Useful for hearing-impaired households and as a low-tech alternative.","commenter",[82,86],{"id":83,"by":84,"text":85},"41983881","voytec","I can see some potential for people with hearing loss. I've seen apartments and houses of such folks, with some small dedicated bulbs or even normal ceiling lights flashing…",{"id":87,"by":88,"text":89},"41983041","jillesvangurp","I recently visited a friend in Finland. In Finland it's common for apartments to not have doorbells downstairs. Instead the door has a pincode that people use to get in which are…",{"value":91,"source":80,"evidence":92},"Creative hack and fun concept.",[93,97],{"id":94,"by":95,"text":96},"41982019","danhau","I love this sort of thing, very cool idea. I think it makes for a great weekend project to implement something similar yourself.",{"id":98,"by":99,"text":100},"41988176","flkiwi","As a hack, this is great. As a thing I would actually use? Very, very unlikely. - I would never use a random QR code in public and I wouldn’t ask anyone else to. - Pranking seems…",[102,117,129,140],{"value":103,"source":80,"evidence":104},"Pranking and abuse by anyone who copies the QR code.",[105,109,113],{"id":106,"by":107,"text":108},"41982035","dghf","This does seem like it might be prone to pranksters copying a particular doorbell code and putting it outside someone else's house (or several houses), distributing fake flyers…",{"id":110,"by":111,"text":112},"41982412","NKosmatos","Good for you that you build your first mobile app(s) and for having an inventive mind, but please be aware that there are many many \"bad\" people out there that will…",{"id":114,"by":115,"text":116},"41983930","ale42","Now someone might want to check for neighbors having such QR codes on their doors and replace them with QR serving ads (and accessorily ring the \"bell\" application), or just with…",{"value":118,"source":80,"evidence":119},"Visitors are unlikely to scan random QR codes; a cheap wireless doorbell is simpler.",[120,124,128],{"id":121,"by":122,"text":123},"41984619","tln","Interesting idea... Cheap wireless doorbell is $5 delivered from Amazon. That's your biggest competition for the straightforward case. And that's easier to install, and easier to…",{"id":125,"by":126,"text":127},"41982677","severak_cz","Feedback: Bad UX. After scanning your example code I got page which asked me to take photo and I get really confused because I thought you want me to scan QR code again but there…",{"id":98,"by":99,"text":100},{"value":130,"source":80,"evidence":131},"Security concerns about scanning QR codes from strangers.",[132,136],{"id":133,"by":134,"text":135},"41982066","GJim","\"R2-D2 you know better than to trust a strange QR code\". Scanning QR codes outside a trusted environment (e.g. a workplace stock keeping system) is asking for trouble. Security…",{"id":137,"by":138,"text":139},"41989139","coretx","It has been a while since a _useful_ new app came along! Thank you, i appreciate it to the point I'd be willing to pay for it. Feedback: Teach people to never ever scan a QR code…",{"value":141,"source":80,"evidence":142},"Accessibility problems for people without smartphones, children and the elderly.",[143],{"id":144,"by":145,"text":146},"41983920","Weetile","Not to mention a QR code excludes many people such as children and the elderly who might not have phones",[148,163,170],{"value":149,"source":80,"evidence":150},"Use NFC or RFID tags instead of QR codes.",[151,155,159],{"id":152,"by":153,"text":154},"41985926","G_o_D","Rather use NFC TAG,",{"id":156,"by":157,"text":158},"41982209","pratibha_simone","I would want a NFC one tbh.",{"id":160,"by":161,"text":162},"41982691","langsoul-com","Nfc touch doorbell would also be cool. Though, I do feel it's too technically advanced for most people to use.",{"value":164,"source":80,"evidence":165},"Add WebRTC audio or video and a ding sound in the browser.",[166],{"id":167,"by":168,"text":169},"41982382","edent","This is a brilliant idea! Love the \"take a photo\" at the start. I assume (if you answer) it will go through WebRTC? Might be nice to play a \"ding dong\" sound in the browser?",{"value":171,"source":80,"evidence":172},"Better UX and instructions when scanning.",[173],{"id":125,"by":126,"text":127},[175,182],{"value":176,"source":80,"evidence":177},"What is the advantage over a traditional doorbell plus phone?",[178],{"id":179,"by":180,"text":181},"41982237","sam29681749","What's the advantage of this over a traditional doorbell + a phone (which everyone already has)? If I'm home, I can hear them. If I'm not, they can just message\u002Fcall me.",{"value":183,"source":80,"evidence":184},"How would the app prevent abuse or pranks?",[185,189],{"id":186,"by":187,"text":188},"41981969","fph","Is there a captcha, or can people ding-dong-ditch you from a continent apart?",{"id":190,"by":11,"text":191},"41982912","Right now you can ding dong ditch if you have the code. As others mentioned using location could help. Or maybe a one-time-pin?",[193,201,212],{"value":194,"source":80,"evidence":195},"Cheap wireless doorbells.",[196,200],{"id":197,"by":198,"text":199},"41983976","aaronax","You can get a wireless doorbell for $25 which will require no permission from any reasonable property owner.",{"id":121,"by":122,"text":123},{"value":202,"source":80,"evidence":203},"Ring \u002F smart doorbells.",[204,208],{"id":205,"by":206,"text":207},"41990165","anon115","if you improve the UX on this thing I think im not a businessmen but i think you would be competing against 'Ring'",{"id":209,"by":210,"text":211},"41981955","iamjfu","Nice work! I wonder if instead of complexity you should call this a cheaper alternative to a smart doorbell? I don't think many of us think of smart doorbells as particularly…",{"value":213,"source":80,"evidence":214},"SMS or tel: links on a printed QR code.",[215,219],{"id":216,"by":217,"text":218},"41988116","turtlebits","Why does this need an app? Why not just send me a text, or better, yet just an SMSTO link? (ie SMSTO:+1123456:Open the door!)",{"id":87,"by":88,"text":89},{"comments":221,"answered":222,"key":223},24,9,[224,227,230],{"id":225,"text":226},"41988075","In the right circumstances that sounds like fun - a mini escape room before you can visit your friend :)",{"id":228,"text":229},"41983739","It will use a LLM to interview you and decide if you are allowed to ring the doorbell",{"id":231,"text":232},"41987899","Pranking is a legitimate concern. What do you reckon the worst case scenario to be and what do you reckon are reasonable pranks?",{"commenters":234,"max_depth":37,"maker_replies":221,"first_comment_mins":235,"lifespan_hours":236},120,122,147,[238,242,246,248,251,253,257,261,264,267,271,272,275,277,280,283,286,290,292,295,297,299,302,305,308,311,313,315,319,322,325,329,332,334,336,339,342,343,345,347,349,350,352,356,358,361,363,366,368,371,373,375,378,381,383,385,387,389,391,393,396,398,400,403,405,408,410,413,416,418,421,424,427,430,433,436,438,441,444,446,448,451,453,455,458,459,461,463,465,467,469,473,476,479,481,484,487,489,490,493,496,498,500,503,505,507,510,512,515,517,519,522,525,527,529,531,533,535,537,539,543,545,548,550,554,557,561,563,565,567,569,572,574,577,580,582,585,587,589,591,594,596,599,601,603,605,609,614,617,620,622,625,627,631,635,640,643,647,649,651,652,655,659,661,663,666,668,672,676,678,680,683,687,690,693,695,697,699,701,703,706,710,713,715,718,720,722,724,727,730,732,734,736,738,741,743,745,749,751,755,759,763,766,768,771,774,777,779,781,783,785,787,789,791,794,796,799,801,803,805,807,811,813,816,820,822,825,827,830,832,834],[239,36,50,240,241,36],"41987859","project\u002Fneutral\u002Fdesign","saaaaaam",[243,36,46,244,245,36],"41988006","project\u002Fcritical\u002Fprivacy","isoprophlex",[225,36,36,247,11,46],"project\u002Fpositive\u002Fdesign",[249,36,36,250,241,36],"41988222","commenter\u002Fneutral\u002Fnone",[106,46,46,252,107,36],"project\u002Fcritical\u002Fidea",[254,46,50,255,256,36],"41982103","project\u002Fneutral\u002Fexecution","nkozyra",[258,46,46,259,260,36],"41982731","project\u002Fcritical\u002Fexecution","atoav",[262,46,46,259,263,36],"41982927","cinntaile",[265,46,46,266,256,36],"41983460","project\u002Fcritical\u002Fpricing",[268,46,36,269,270,36],"41983637","other\u002Fneutral\u002Fnone","kfarr",[228,46,36,269,11,46],[273,46,46,266,274,36],"41985191","ibaikov",[276,46,46,266,270,36],"41986030",[278,46,46,266,279,36],"41994097","kotaKat",[281,46,36,269,282,36],"41984001","dylan604",[284,46,46,259,285,36],"41983565","EGreg",[287,46,36,288,289,36],"41983975","commenter\u002Fneutral\u002Fprivacy","gruez",[291,46,36,288,285,36],"41985342",[293,46,36,250,294,36],"41993926","axelthegerman",[296,46,36,250,285,36],"42018511",[298,46,46,252,241,36],"41985408",[300,46,46,252,301,36],"41998242","tanseydavid",[303,46,46,252,304,36],"41988467","barryrandall",[306,46,31,307,294,36],"41993908","project\u002Fpositive\u002Fidea",[309,46,50,255,310,36],"41982232","middayc",[312,46,50,255,180,36],"41982262",[314,46,50,255,256,36],"41982424",[316,46,50,317,318,36],"41983955","project\u002Fneutral\u002Fidea","quesera",[320,46,50,317,321,36],"41984427","c22",[323,46,50,317,324,36],"41985679","maaaaattttt",[326,46,46,327,328,36],"41987209","project\u002Fcritical\u002Fdesign","NicuCalcea",[330,46,36,250,331,36],"41988897","ozim",[231,46,36,333,11,46],"maker\u002Fneutral\u002Fnone",[335,46,46,252,107,36],"41993368",[337,46,50,255,338,36],"41988596","0x457",[340,49,46,327,341,36],"41983818","nabla9",[144,49,46,252,145,36],[65,49,36,344,11,46],"maker\u002Fneutral\u002Fidea",[346,49,46,252,241,36],"41985356",[348,49,31,307,318,36],"41983935",[197,49,46,252,198,36],[351,49,50,317,318,36],"41984510",[353,49,50,354,355,36],"41986069","project\u002Fneutral\u002Fpricing","michaelt",[357,49,46,252,318,36],"41986329",[359,49,36,250,360,36],"41987719","rootusrootus",[362,49,36,250,198,36],"42025926",[364,49,36,250,365,36],"41993019","nicolaslem",[367,49,36,250,198,36],"42025922",[369,49,50,317,370,36],"41984034","beAbU",[372,49,36,250,318,36],"41984187",[374,49,46,252,321,36],"41984340",[376,49,50,317,377,36],"41984386","mikedelfino",[379,49,46,252,380,36],"41991940","akerl_",[382,49,46,252,282,36],"41983985",[384,49,36,344,11,46],"41984010",[386,49,46,252,282,36],"41984074",[388,49,36,250,318,36],"41984113",[390,49,36,250,282,36],"41984270",[392,49,36,250,318,36],"41984412",[394,49,36,250,395,36],"41995768","Tijdreiziger",[397,49,36,250,331,36],"41989006",[399,49,36,250,321,36],"41984379",[401,49,36,250,402,36],"41984517","markerz",[404,49,36,250,355,36],"41985888",[406,49,36,250,407,36],"41986549","camtarn",[409,49,36,250,402,36],"41987423",[411,49,36,250,412,36],"41986101","vikingerik",[414,49,36,250,415,36],"41987826","rendaw",[417,49,36,250,331,36],"41989081",[419,49,36,250,420,36],"41987146","graemep",[422,49,36,250,423,36],"41987734","jaymzcampbell",[425,49,46,327,426,36],"41984143","rimunroe",[428,49,50,317,429,36],"41984277","eddieroger",[431,49,46,432,241,36],"41985322","project\u002Fcritical\u002Fperformance",[434,49,46,252,435,36],"41985658","netsharc",[437,49,36,250,241,36],"41987983",[439,49,46,244,440,36],"41984475","toss1",[442,49,36,443,294,36],"41993979","commenter\u002Fneutral\u002Fidea",[445,49,46,244,440,36],"41995382",[447,49,31,307,294,36],"41995930",[449,49,50,240,450,36],"41985424","itake",[452,49,36,317,11,46],"41986152",[454,49,46,244,450,36],"41988043",[456,49,46,252,457,36],"41985712","sangupta",[125,50,46,327,126,36],[460,50,36,240,11,46],"41983322",[462,50,50,240,289,36],"41983810",[464,50,50,255,282,36],"41984037",[466,50,36,240,11,46],"41984201",[468,50,46,252,282,36],"41984023",[470,50,50,471,472,36],"41984473","project\u002Fmixed\u002Fidea","biercarsten",[474,43,46,327,475,36],"41984115","JohnFen",[477,43,46,244,478,36],"41984543","account42",[480,43,31,307,475,36],"41984764",[482,43,36,250,483,36],"41993334","grvdrm",[485,43,36,486,475,36],"41997685","other\u002Fneutral\u002Fprivacy",[488,43,36,269,483,36],"42027847",[121,31,46,252,122,36],[491,31,36,492,11,46],"41984678","maker\u002Fpositive\u002Fnone",[494,31,31,307,495,36],"41986394","ramses0",[497,31,50,317,360,36],"41987670",[499,31,50,317,495,36],"41997890",[501,31,50,240,502,36],"41988578","dmonitor",[504,31,31,307,495,36],"41998029",[179,506,46,252,180,36],6,[508,506,50,317,509,36],"41982386","master-lincoln",[511,506,46,252,180,36],"41982818",[513,506,46,252,514,36],"41982958","eesmith",[516,506,46,259,115,36],"41983908",[518,506,46,252,180,36],"41984006",[520,506,31,307,521,36],"41983354","wink",[523,506,46,252,524,36],"41983642","hoherd",[526,506,50,317,521,36],"41984119",[528,506,50,317,180,36],"41984218",[530,506,31,307,318,36],"41984372",[532,506,50,317,180,36],"41983734",[534,506,31,307,521,36],"41984110",[536,506,50,471,180,36],"41984243",[538,506,36,240,11,46],"41983359",[540,541,46,252,542,36],"41985854",7,"sureIy",[83,544,31,307,84,36],8,[546,544,36,547,11,46],"41983946","maker\u002Fpositive\u002Fidea",[549,544,50,471,478,36],"41984523",[551,222,50,552,553,36],"41982643","project\u002Fneutral\u002Fnone","riiii",[555,37,36,556,11,46],"41984525","maker\u002Fneutral\u002Fdocs",[558,37,50,559,560,36],"41984605","project\u002Fneutral\u002Fdocs","HPsquared",[562,37,46,252,217,36],"41988164",[564,39,46,252,84,36],"41986296",[87,566,31,307,88,36],12,[186,568,46,244,187,36],13,[570,568,50,317,571,36],"41982086","mingusrude",[573,568,46,244,256,36],"41982123",[575,568,46,252,576,36],"41982163","swah",[578,568,36,269,579,36],"41982255","Towaway69",[581,568,36,269,256,36],"41982438",[583,568,36,269,584,36],"41982807","Dilettante_",[586,568,36,333,11,46],"41983345",[588,568,36,269,256,36],"41983453",[190,568,36,590,11,46],"project\u002Fneutral\u002Fprivacy",[592,568,31,307,593,36],"41983926","filcuk",[595,568,36,269,370,36],"41984094",[597,568,36,269,598,36],"41987023","ultrafez",[209,600,50,354,210,36],14,[602,600,36,344,11,46],"41982982",[98,604,46,252,99,36],15,[606,607,36,250,608,36],"41989025",16,"andrewstuart",[610,611,36,612,613,36],"41985982",17,"other\u002Fneutral\u002Fidea","ovi256",[615,18,36,269,616,36],"41984442","rahimnathwani",[618,18,36,269,619,36],"41986121","tofof",[621,18,36,250,616,36],"41986938",[623,18,36,269,624,36],"41986976","tzs",[137,626,31,307,138,36],19,[628,629,46,252,630,36],"41991331",20,"dankwizard",[632,633,46,244,634,36],"41984802",21,"oefrha",[636,637,50,638,639,36],"41992297",22,"project\u002Fmixed\u002Fdocs","pepa65",[641,637,50,317,642,36],"41992408","dddw",[644,645,50,552,646,36],"41982776",23,"AndrewOMartin",[648,645,36,333,11,46],"41982899",[650,645,46,252,646,36],"42040352",[110,221,46,244,111,36],[653,221,36,654,11,46],"41982939","maker\u002Fneutral\u002Fprivacy",[656,657,46,252,658,36],"41992201",25,"solarized",[205,660,50,255,206,36],26,[94,662,31,307,95,36],27,[664,662,36,665,11,46],"41983397","maker\u002Fneutral\u002Fexecution",[114,667,46,244,115,36],28,[669,670,31,307,671,36],"41990170",29,"weiwio",[673,674,50,317,675,36],"41983977",30,"xyst",[677,674,36,547,11,46],"41984089",[160,679,46,327,161,36],31,[681,679,36,682,11,46],"41984263","maker\u002Fneutral\u002Fdesign",[684,685,36,269,686,36],"41990188",32,"qkhhly",[688,685,36,269,689,36],"41990263","otterley",[691,685,36,269,692,36],"41990327","xnyan",[694,685,36,269,689,36],"41990576",[696,685,36,269,686,36],"41990579",[698,685,36,269,689,36],"41990620",[700,685,36,269,686,36],"41997357",[702,685,36,269,689,36],"41999140",[704,685,36,269,705,36],"41991033","ramon156",[707,708,31,307,709,36],"42023505",33,"mazahermuraj",[711,30,46,252,712,36],"41982185","Waterluvian",[714,30,36,250,180,36],"41982292",[716,30,36,250,717,36],"41982816","ndsipa_pomu",[719,30,36,250,712,36],"41982919",[721,30,36,250,717,36],"41983117",[723,30,36,250,712,36],"41983504",[725,30,36,250,726,36],"41983688","ChoGGi",[728,30,36,250,729,36],"41992364","brnt",[731,30,36,250,584,36],"41982830",[156,733,50,240,157,36],35,[735,733,36,250,639,36],"41992229",[737,41,46,327,153,36],"41985900",[739,41,36,250,740,36],"41985945","rvnx",[167,742,31,307,168,36],37,[744,742,36,255,11,46],"41982955",[746,747,36,269,748,36],"41983988",38,"zaxomi",[216,750,46,252,217,36],39,[752,753,46,252,754,36],"41984908",40,"stainablesteel",[756,757,46,252,758,36],"42003658",41,"uean",[760,761,46,252,762,36],"41992874",42,"roydivision",[764,765,46,327,153,36],"41985984",43,[133,767,46,244,134,36],44,[769,767,36,250,770,36],"41982243","echoangle",[772,767,36,250,773,36],"41982823","TrianguloY",[775,767,36,250,776,36],"41983731","pacifika",[778,767,36,250,289,36],"41983829",[780,767,36,250,776,36],"41984071",[782,767,36,250,770,36],"41984488",[784,767,36,250,776,36],"41984887",[786,767,36,250,770,36],"41985052",[788,767,36,250,509,36],"41982324",[790,767,36,250,168,36],"41982356",[792,767,36,250,793,36],"41982809","jy14898",[795,767,36,250,88,36],"41982961",[797,767,36,288,798,36],"41983835","gregmac",[800,767,36,250,168,36],"41984050",[802,767,36,250,88,36],"41982924",[804,767,36,333,11,46],"41983424",[152,806,50,240,153,36],45,[808,809,46,327,810,36],"41981877",46,"123pie123",[812,809,36,333,11,46],"41981957",[814,809,46,252,815,36],"41982264","block_dagger",[817,809,50,818,819,36],"41982290","project\u002Fmixed\u002Fdesign","themoonisachees",[821,809,36,682,11,46],"41983498",[823,809,36,250,824,36],"41982374","sebtron",[826,809,36,250,256,36],"41982453",[828,809,36,250,829,36],"41982746","thomascountz",[831,809,46,327,260,36],"41982791",[833,809,36,250,798,36],"41983899",[835,809,31,307,639,36],"41992259",[],[838,843,848,853,858,862],{"id":839,"name":840,"points":841,"category":842},"41934746","2048",669,"games",{"id":844,"name":845,"points":846,"category":847},"41930628","RF 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