[{"data":1,"prerenderedAt":704},["ShallowReactive",2],{"project-41930628":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":20,"keywords":22,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":34,"aspects":35,"strip":47,"post_text":49,"what":50,"said":76,"maker_in_thread":191,"shape":203,"grid":208,"attempts":665,"same_week":666,"maker_shows":45,"maker_hidden":696,"reader_version":697,"card":698},"41930628","RF Hunter","Find hidden cameras and other devices","title","Show HN: RF Hunter – Find hidden cameras and other devices","https:\u002F\u002Fgithub.com\u002FRamboRogers\u002Frfhunter","github.com","RamboRogers",1729729296,2024,594,175,42,3515,2,"legend","hardware","rf signal detector",[23,24,25,26],"rf detector","hidden camera finder","esp32","rf signal scanner","curious",-0.108,{"positive":30,"neutral":31,"mixed":32,"critical":33},13,45,0,18,76,{"idea":36,"performance":38,"pricing":40,"design":42,"privacy":43,"execution":44,"docs":46},{"positive":37,"critical":37},5,{"positive":18,"critical":39},9,{"positive":41,"critical":32},3,{"positive":32,"critical":32},{"positive":32,"critical":18},{"positive":45,"critical":45},1,{"positive":45,"critical":45},[41,45,18,41,37,18,41,37,41,32,41,32,32,32,32,45,37,32,41,32,32,18,45,45,45,41,18,48,41,37,37,32,32,41,41,48,41,45,45,37],4,"This project is an RF Signal Scanner built using an ESP32, AD8317 RF detector, and various other components. It's designed to detect and measure RF signals in the environment and display the signal strength on an OLED display. It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices.",{"problem":51,"audience":57,"pricing":58,"motivation":57,"time_to_build":57,"stack":64,"openness":73,"stage":74,"team_size":75},{"value":52,"source":53,"evidence":54},"Finding hidden cameras and wiretapping devices that transmit RF signals","maker",[55],{"id":56},"post",null,{"value":59,"source":53,"evidence":60},"Parts cost about $30 (maker's estimate); no sale price stated",[61],{"id":62,"by":11,"text":63},"41931737","Thanks, it costs about 30$ in parts. Not sure what a fair price would be.",[65,69],{"value":66,"source":53,"evidence":67},"ESP32",[68],{"id":56},{"value":70,"source":53,"evidence":71},"AD8317 RF detector",[72],{"id":56},"open_source","launched","unknown",{"praise":77,"objections":94,"requests":124,"questions":147,"alternatives":169},[78],{"value":79,"source":80,"evidence":81},"Useful, cool project with a practical use","commenter",[82,86,90],{"id":83,"by":84,"text":85},"41931666","ffujdefvjg","Cool project! I'd buy one of these if they were pre-assembled.",{"id":87,"by":88,"text":89},"41936712","sriram_malhar","Thanks for this useful project. Can I trouble you to add a circuit diagram of the latest rev? So much easier than reading text.",{"id":91,"by":92,"text":93},"41935942","bloopernova","This is really cool! Have you considered using a Software Defined Radio or would that not improve capabilities enough to be worth the hassle?",[95,110,117],{"value":96,"source":80,"evidence":97},"Cannot detect non-transmitting or burst-mode recording devices",[98,102,106],{"id":99,"by":100,"text":101},"41932310","coin","Title is misleading. It only detects RF. A hidden camera could record to storage for later upload in which case wouldn’t be transmitting continuously.",{"id":103,"by":104,"text":105},"41935130","sandworm101",">> It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices. Nope. It is used to find RF-emitting devices, the sort of low-sophistication stuff you…",{"id":107,"by":108,"text":109},"41933700","goodpoint","This is ineffective against most recording devices.",{"value":111,"source":80,"evidence":112},"Sweep and sensitivity design questioned; not a real spectrum analyzer",[113],{"id":114,"by":115,"text":116},"41938284","omagramma","This doesn't do anything useful. To detect RF transmissions you need to sweep a range of frequencies stopping at each frequency for a period of time for the Rx amp to sample. The…",{"value":118,"source":80,"evidence":119},"Build quality looks poor in the Amazon photos",[120],{"id":121,"by":122,"text":123},"41941748","ajsnigrutin","Following the amazon links in the cpp brought me to this: https:\u002F\u002Fwww.amazon.com\u002Fgp\u002Fproduct\u002FB07FHZXTCZ Holy fsck, the build quality must be shitty if even the amazon photo looks…",[125,129,136],{"value":126,"source":80,"evidence":127},"Circuit diagram of the latest revision",[128],{"id":87,"by":88,"text":89},{"value":130,"source":80,"evidence":131},"Video showing detection of different sources",[132],{"id":133,"by":134,"text":135},"41951902","rightbyte","Really interesting. Could you please make a video showing well it works for different sources?",{"value":137,"source":80,"evidence":138},"Phone app version or Flipper Zero version",[139,143],{"id":140,"by":141,"text":142},"41931605","o1o1o1","Interesting, thank you for sharing! Maybe somebody knows: Is there something similar for the Flipper Zero?",{"id":144,"by":145,"text":146},"41938897","jdthedisciple","looks good, now I just need a version of the same software that runs on my phone so I don't need to buy all these materials and slap them together",[148,155,162],{"value":149,"source":80,"evidence":150},"Detection range and sensitivity",[151],{"id":152,"by":153,"text":154},"41931540","kubectl_h","What is the sensitivity\u002Frange? I've always wanted something like this to carry in the woods to detect game\u002Ftrail cameras. Not for any nefarious purpose, but to get an idea of how…",{"value":156,"source":80,"evidence":157},"Whether it detects short bursts",[158],{"id":159,"by":160,"text":161},"41932541","slow_typist","OP, cool project. I have questions though: How does the device detect very short bursts? After looking up the data sheet of the RF detector I believe you would need additional…",{"value":163,"source":80,"evidence":164},"Whether it is confused by nearby WiFi",[165],{"id":166,"by":167,"text":168},"41933851","amelius","Does it get confused by nearby WiFi transmitters?",[170,177,184],{"value":171,"source":80,"evidence":172},"Thermal cameras and TinySA spectrum analyzer",[173],{"id":174,"by":175,"text":176},"41932478","yftsui","The most effective way would be use a Thermal Camera, because a normal \"hidden camera\" you get from eBay will consume around 5 Watts - a significant heat dissipation. For others,…",{"value":178,"source":80,"evidence":179},"Non-linear junction detectors",[180],{"id":181,"by":182,"text":183},"41933979","danbruc","Fun fact, you can actually detect semiconductor devices even if they are powered off and hence emit no radiation unless the design took specific precautions. This works by…",{"value":185,"source":80,"evidence":186},"Phone IR camera check with lights off",[187],{"id":188,"by":189,"text":190},"41931750","declan_roberts","A way easier solution to this is to turn off all of the lights and look around with your phone camera. The phone camera will pick up the bright IR lights that hidden cameras use…",{"comments":192,"answered":30,"key":193},28,[194,197,200],{"id":195,"text":196},"41935371","TinySA looks cool! I want one. I made a thermal camera https:\u002F\u002Fgithub.com\u002FRamboRogers\u002FM5StickCPlus2-AMG8833-Thermal-Camera",{"id":198,"text":199},"41931728","yeah, it's just soldered up to the pins. More details here: https:\u002F\u002Fblog.matthewrogers.org\u002Fb\u002F8BCF175A-6CC6-4E61-8310-A91034389015\u002FFind-Hidden-Devices---RFHunter---Det",{"id":201,"text":202},"41931912","Well, maybe - it would need to have ir enabled. This also detects listening devices etc.",{"commenters":204,"max_depth":205,"maker_replies":192,"first_comment_mins":206,"lifespan_hours":207},97,11,65,129,[209,211,214,217,221,224,227,229,233,236,239,243,246,249,252,256,259,261,264,267,270,273,277,280,283,285,286,288,291,294,297,301,302,306,310,312,315,318,320,323,326,328,331,334,337,339,341,344,347,350,353,355,357,360,363,365,368,371,374,376,379,381,383,386,388,391,393,396,399,402,404,407,411,413,415,418,421,423,426,428,430,433,435,437,440,443,446,448,451,454,457,459,461,463,465,468,470,472,474,475,477,480,484,488,491,493,495,498,500,502,505,506,508,511,513,515,517,519,522,525,527,529,532,535,537,540,542,545,546,549,552,555,557,559,562,565,568,570,572,574,576,578,580,582,584,587,591,594,596,598,600,604,606,608,611,615,619,621,623,627,629,632,634,636,638,640,642,644,646,651,653,655,659,661,663],[181,32,41,210,182,32],"project\u002Fneutral\u002Fidea",[212,32,32,213,167,32],"41934036","other\u002Fneutral\u002Fnone",[215,32,32,213,216,32],"41934268","mxuribe",[218,32,32,219,220,32],"41935390","commenter\u002Fneutral\u002Fnone","daveguy",[222,32,32,219,223,32],"41936465","krisoft",[225,32,32,219,226,32],"41940973","emmelaich",[228,32,32,219,223,32],"41943574",[230,32,45,231,232,32],"41934762","project\u002Fcritical\u002Fidea","hoistbypetard",[234,32,32,219,235,32],"41935095","diggan",[237,32,45,238,232,32],"41941788","project\u002Fcritical\u002Fperformance",[240,32,41,241,242,32],"41944847","project\u002Fneutral\u002Fperformance","mannykannot",[244,32,41,241,245,32],"41935133","gorjusborg",[247,32,32,213,248,32],"41940735","Teever",[250,32,45,238,251,32],"41961450","nullc",[253,32,37,254,255,32],"41937075","project\u002Fpositive\u002Fidea","alwa",[257,32,32,213,258,32],"41943040","inglor_cz",[260,32,32,213,182,32],"41935038",[262,32,32,213,263,32],"41939767","stavros",[265,32,41,210,266,32],"41935658","AlanYx",[268,45,32,213,269,32],"41932767","transpute",[271,18,37,272,269,32],"41931092","maker\u002Fpositive\u002Fnone",[274,18,41,275,276,32],"41933219","project\u002Fneutral\u002Fpricing","pragmatick",[278,18,41,241,279,32],"41937078","bobmcnamara",[281,18,41,210,282,32],"41942130","amatecha",[284,18,45,238,279,32],"41958308",[174,41,45,231,175,32],[287,41,41,241,269,32],"41932684",[289,41,41,210,290,32],"41934140","garblegarble",[292,41,41,275,293,32],"41935672","Cthulhu_",[295,41,41,241,296,32],"41944196","rapjr9",[298,41,32,299,300,32],"41945752","other\u002Fneutral\u002Fprivacy","mschuster91",[195,41,32,213,11,45],[303,41,37,304,305,32],"41944861","project\u002Fpositive\u002Fperformance","blincoln",[307,48,41,308,309,32],"41931652","project\u002Fneutral\u002Fdesign","ghostpepper",[198,48,32,311,11,45],"maker\u002Fneutral\u002Fdesign",[313,37,41,210,314,32],"41935925","01100011",[316,37,32,219,317,32],"41936622","anthomtb",[319,37,41,210,314,32],"41937517",[321,37,32,213,322,32],"41938022","banku_brougham",[324,37,32,213,325,32],"41947362","sardines",[327,37,32,213,145,32],"41938877",[329,37,32,213,330,32],"41940473","danparsonson",[332,37,32,213,333,32],"41946569","dekhn",[335,37,32,213,336,32],"41939850","dmicah",[188,338,41,210,189,32],6,[201,338,32,340,11,45],"maker\u002Fneutral\u002Fperformance",[342,338,41,241,343,32],"41932250","mbreese",[345,338,41,210,346,32],"41932777","ddingus",[348,338,32,213,349,32],"41932320","Ballas",[351,338,32,213,352,32],"41932445","deknos",[354,338,32,213,349,32],"41932519",[356,338,32,213,346,32],"41932734",[358,338,32,213,359,32],"41934620","botanical76",[361,338,32,213,362,32],"41933939","karlkloss",[364,338,32,213,282,32],"41942152",[366,338,32,213,367,32],"41940566","lightedman",[369,338,32,213,370,32],"41935960","runjake",[372,338,32,213,373,32],"41938101","JKCalhoun",[375,338,32,213,370,32],"41938733",[377,338,32,213,378,32],"41939530","pwg",[380,338,32,219,367,32],"41940552",[382,338,32,219,349,32],"41942731",[384,338,32,213,385,32],"41934326","alwayslikethis",[387,338,32,213,189,32],"41937215",[389,338,32,213,390,32],"41939438","kube-system",[99,392,45,231,100,32],7,[394,392,41,210,395,32],"41932336","KeplerBoy",[397,392,45,231,398,32],"41932354","satori99",[400,392,45,238,401,32],"41932397","killingtime74",[403,392,41,210,395,32],"41932698",[405,392,32,406,11,45],"41934806","project\u002Fneutral\u002Fnone",[408,409,37,254,410,32],"41932151",8,"ujikoluk",[412,409,41,210,269,32],"41932696",[414,409,37,254,410,32],"41937728",[416,39,32,213,417,32],"41934017","thih9",[419,39,32,213,420,32],"41934207","lynx23",[422,39,32,213,11,45],"41935391",[424,39,32,213,425,32],"41935528","binarymax",[427,39,32,213,373,32],"41938115",[152,429,41,241,153,32],10,[431,429,41,210,432,32],"41931604","etrautmann",[434,429,41,406,153,32],"41931679",[436,429,32,213,84,32],"41931754",[438,429,32,213,439,32],"41932295","A4ET8a8uTh0",[441,429,32,213,442,32],"41932416","jamil7",[444,429,32,213,445,32],"41932444","defrost",[447,429,32,213,84,32],"41932687",[449,429,32,213,450,32],"41934265","potato3732842",[452,429,32,213,453,32],"41935846","toss1",[455,429,32,213,456,32],"41937505","themaninthedark",[458,429,32,213,153,32],"41940417",[460,429,32,213,453,32],"41940869",[462,429,32,213,453,32],"41946468",[464,429,41,241,450,32],"41934193",[466,429,45,238,467,32],"41943582","05",[469,429,41,241,450,32],"41944603",[471,429,45,238,467,32],"41946093",[473,429,32,241,11,45],"41931934",[114,205,45,238,115,32],[476,205,32,219,11,45],"41938353",[478,205,32,219,479,32],"41963764","CamperBob2",[481,482,32,299,483,32],"41931838",12,"jmward01",[485,482,45,486,487,32],"41931916","project\u002Fcritical\u002Fprivacy","rahimnathwani",[489,482,41,490,88,32],"41932616","project\u002Fneutral\u002Fprivacy",[492,482,32,213,293,32],"41935701",[494,482,32,213,390,32],"41939559",[496,482,32,213,497,32],"41947943","ted_dunning",[499,482,32,304,11,45],"41931924",[501,482,45,486,346,32],"41932789",[503,482,32,213,504,32],"41934438","b112",[159,30,41,241,160,32],[507,30,32,241,11,45],"41938394",[509,30,41,210,510,32],"41940281","9dev",[512,30,32,210,11,45],"41957661",[514,30,37,304,160,32],"41942604",[103,516,45,231,104,32],14,[518,516,32,304,11,45],"41938417",[121,520,45,521,122,32],15,"project\u002Fcritical\u002Fexecution",[87,523,41,524,88,32],16,"project\u002Fneutral\u002Fdocs",[140,526,41,406,141,32],17,[528,526,32,210,11,45],"41931733",[530,526,37,254,531,32],"41938078","x______________",[533,526,32,534,11,45],"41938519","project\u002Fneutral\u002Fexecution",[536,526,41,311,141,32],"41941990",[538,33,41,308,539,32],"41931015","Terr_",[541,33,32,534,11,45],"41931731",[83,543,37,544,84,32],19,"project\u002Fpositive\u002Fexecution",[62,543,32,275,11,45],[547,543,37,548,84,32],"41931778","project\u002Fpositive\u002Fpricing",[550,543,37,548,551,32],"41932026","_dark_matter_",[553,543,32,213,554,32],"41932174","woleium",[556,543,32,219,11,45],"41935161",[558,543,32,213,504,32],"41934475",[560,543,37,548,561,32],"41932297","tomcam",[563,543,32,564,84,32],"41932324","commenter\u002Fneutral\u002Fpricing",[566,543,32,564,567,32],"41934774","Eisenstein",[569,543,32,564,561,32],"41942710",[571,543,32,219,497,32],"41948120",[573,543,32,219,561,32],"41952330",[575,543,32,219,567,32],"41970027",[577,543,32,219,561,32],"41980490",[579,543,32,219,567,32],"41980804",[581,543,32,219,561,32],"41981358",[583,543,32,564,11,45],"41938584",[585,586,41,210,167,32],"41933854",20,[588,589,41,534,590,32],"41933927",21,"beardyw",[592,589,32,219,593,32],"41934299","severino",[595,589,32,219,590,32],"41935240",[91,597,41,210,92,32],22,[599,597,32,210,11,45],"41957665",[601,602,41,210,603,32],"41939979",23,"swayvil",[133,605,41,524,134,32],24,[607,605,32,241,11,45],"41952727",[609,605,37,610,134,32],"41955684","project\u002Fpositive\u002Fdocs",[612,613,41,210,614,32],"41946910",25,"kshahkshah",[616,617,41,210,618,32],"41943126",26,"roydivision",[620,617,41,210,296,32],"41944260",[622,617,41,210,618,32],"41968660",[624,625,41,241,626,32],"41944798",27,"taeefnajib",[628,625,32,241,11,45],"41952734",[630,192,41,210,631,32],"41934748","marsh_mellow",[633,192,32,304,11,45],"41935452",[107,635,45,238,108,32],29,[637,635,32,241,11,45],"41934811",[639,635,45,238,108,32],"41936659",[641,635,32,241,11,45],"41938479",[166,643,41,241,167,32],30,[645,643,32,241,11,45],"41935402",[647,648,45,649,650,32],"41931844",31,"project\u002Fcritical\u002Fdocs","rkagerer",[652,648,32,524,11,45],"41931915",[654,648,32,524,11,45],"41935497",[656,657,41,308,658,32],"41932345",32,"consumerx",[660,657,32,308,11,45],"41935418",[144,662,37,254,145,32],33,[664,662,32,254,11,45],"41944733",[],[667,672,677,682,687,691],{"id":668,"name":669,"points":670,"category":671},"41934746","2048",669,"games",{"id":673,"name":674,"points":675,"category":676},"41997648","AI OmniGen",169,"ai",{"id":678,"name":679,"points":680,"category":681},"41945458","Trench",155,"data",{"id":683,"name":684,"points":685,"category":686},"41935166","Animal Body Fat Match",142,"consumer_social",{"id":688,"name":689,"points":690,"category":686},"41980681","Ding Dong Doorbell",140,{"id":692,"name":693,"points":694,"category":695},"41952779","Mdx",127,"dev_tools",false,"v2",{"id":699,"name":5,"line":6,"ai":696,"cat":20,"year":13,"points":14,"comments":15,"rec":27,"s":700,"top":18,"kw":701,"maker":11,"domain":10,"tier":19,"attempts":32,"strip":702,"url":9,"mix":703,"praise":79,"objection":96,"sub":21},41930628,-0.11,[23,24,25,26],"3123523530300001503002111324355003343115",[30,31,32,33],1794036663386]