[{"data":1,"prerenderedAt":374},["ShallowReactive",2],{"project-45984461":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":28,"sentiment":29,"stance_mix":30,"scored_comments":34,"aspects":35,"strip":44,"post_text":45,"what":46,"said":66,"maker_in_thread":197,"shape":207,"grid":211,"attempts":336,"same_week":337,"maker_shows":37,"maker_hidden":366,"reader_version":367,"card":368},"45984461","F32","An Extremely Small ESP32 Board","title","Show HN: F32 – An Extremely Small ESP32 Board","https:\u002F\u002Fgithub.com\u002FPegorK\u002Ff32","github.com","pegor",1763582970,2025,302,51,179,3837,5,"legend","hardware","microcontroller dev board",[23,24,25,26,27],"esp32","small board","wifi microcontroller","pcb","smd soldering","curious",0.133,{"positive":18,"neutral":31,"mixed":32,"critical":33},17,2,3,27,{"idea":36,"privacy":38,"performance":40,"design":41,"execution":42,"docs":43},{"positive":37,"critical":37},1,{"positive":39,"critical":37},0,{"positive":39,"critical":39},{"positive":37,"critical":39},{"positive":37,"critical":37},{"positive":37,"critical":39},[33,33,33,33,33,39,39,33,37,39,39,33,39,33,33,37,39,33,39,39,39,18,18,33,33,37,18,18,33,39,33,33,39,39,39,39,39,39,18,33],"As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi.",{"problem":47,"audience":53,"pricing":53,"motivation":54,"time_to_build":53,"stack":58,"openness":63,"stage":64,"team_size":65},{"value":48,"source":49,"evidence":50},"Shrinking an ESP32 board to the smallest footprint with working WiFi","maker",[51],{"id":52},"post",null,{"value":55,"source":49,"evidence":56},"Research and fun",[57],{"id":52},[59],{"value":60,"source":49,"evidence":61},"ESP32",[62],{"id":52},"open_source","launched","unknown",{"praise":67,"objections":92,"requests":127,"questions":149,"alternatives":168},[68],{"value":69,"source":70,"evidence":71},"Impressive small size and well-documented build","commenter",[72,76,80,84,88],{"id":73,"by":74,"text":75},"45986988","tmpfs","This is a very cool experiment, even if the board doesn't end up being that practical (the antenna hack is going to be an ongoing issue I think) your documentation looks great at…",{"id":77,"by":78,"text":79},"45990097","NuclearPM","> This can be seen in my highly necessary depiction below. I love this. Fun and insightful article. Thank you.",{"id":81,"by":82,"text":83},"45996363","ingen0s","Nice work, kudos!",{"id":85,"by":86,"text":87},"45999126","stavros","This is great, well done! I don't know where I'd use this, but I'd definitely want to use it.",{"id":89,"by":90,"text":91},"45999904","Swannie","I was thinking \"how much smaller than the cheap 30mm x 25mm boards on AliE can you go?\" ... much smaller! Very nice.",[93,101,116],{"value":94,"source":70,"evidence":95},"Antenna design is a problem",[96,97],{"id":73,"by":74,"text":75},{"id":98,"by":99,"text":100},"46002844","wkat4242","You should take the metal of the USB connector into account. This will significantly alter the emission pattern of the antenna. Try to find a radio amateur in your area, we have…",{"value":102,"source":70,"evidence":103},"Few GPIOs exposed, limiting use",[104,108,112],{"id":105,"by":106,"text":107},"45989812","anyg","If it is a little bigger to incorporate a bigger chip antenna and some GPIO pins, it is going to be very useful for a lot of IoT projects!!",{"id":109,"by":110,"text":111},"45996096","forsalebypwner","If you want an ESP32 dev board with GPIOs exposed there are dozens (or hundreds, maybe thousands) of other options out there. It makes sense not to expose them when you're going…",{"id":113,"by":114,"text":115},"46002592","imtringued","It could be even smaller without that USB C port and have more GPIO pads.",{"value":117,"source":70,"evidence":118},"Hand soldering 01005 parts is very hard",[119,123],{"id":120,"by":121,"text":122},"45999811","allenrb","Jesus. You had me at “hand-soldered 01005 components”. I’m tempted to try a few of these just to see how disastrous my build efforts are.",{"id":124,"by":125,"text":126},"45997413","puzzlingcaptcha","01005? Oh no no no. I can barely do 0402s by hand and those are _2.5x_ larger.",[128,138],{"value":129,"source":70,"evidence":130},"More GPIO pins exposed",[131,132,135],{"id":105,"by":106,"text":107},{"id":133,"by":11,"text":134},"45994743","Definitely would be more functional with more of the GPIOs exposed.",{"id":136,"by":86,"text":137},"46002216","I don't know, I see enough space for four GPIOs there. Not holes, obviously, but pads should be very workable.",{"value":139,"source":70,"evidence":140},"Bluetooth or 5 GHz WiFi variant",[141,145],{"id":142,"by":143,"text":144},"45997513","Rebelgecko","Really cool. I just ran into a situation where it would be handy to have a small Bluetooth device that plugs into USB-C. However soldering something like this seems a bit beyond…",{"id":146,"by":147,"text":148},"46008296","venusenvy47","Can anyone suggest a small module that supports 5 GHz WiFi?",[150,161],{"value":151,"source":70,"evidence":152},"How to rework the bottom side without parts falling off",[153,157],{"id":154,"by":155,"text":156},"46000490","actinium226","Neat! I just sent out an order to JLCPCB for an ESP32 based board. I don't have a rework station or any experience with SMT so I decided to go for their assembly options. It's 80…",{"id":158,"by":159,"text":160},"46001185","brokenmachine","\"Bottom side must be done using a rework hot air gun, not possible with hotplate.\" Basically you're hoping the bottom side doesn't get hot enough for everything to move or fall…",{"value":162,"source":70,"evidence":163},"Can it run a reverse proxy",[164],{"id":165,"by":166,"text":167},"46004271","GardenLetter27","Is it powerful enough to run a reverse proxy?",[169,180,187],{"value":170,"source":70,"evidence":171},"XIAO ESP32 boards",[172,176],{"id":173,"by":174,"text":175},"46001642","selcuka","FYI XIAOs are 21x18mm.",{"id":177,"by":178,"text":179},"45996205","margalabargala","The XIAO series of ESP32s is exactly that. They are 4x the size though, almost exactly double in both length and width. https:\u002F\u002Fwiki.seeedstudio.com\u002FXIAO_ESP32C3_Getting_Started\u002F",{"value":181,"source":70,"evidence":182},"LilyGo T01-C3",[183],{"id":184,"by":185,"text":186},"45995673","PunchyHamster","there is plenty of those already and not all too hard to make yourself, see LilyGo T01-C3 Its of format of original ESP8 so you get serial + 3 IO pins",{"value":188,"source":70,"evidence":189},"JLCPCB and PCBWay assembly services",[190,193],{"id":191,"by":155,"text":192},"46000504","JLCPCB also offers assembly and they're much, much cheaper, like an order of magnitude cheaper.",{"id":194,"by":195,"text":196},"45999494","dotancohen","The company that printed the PCB, PCBWay, also offers PCBAs. They're really not expensive, though you might need to order in batches of multiples of five.",{"comments":198,"answered":37,"key":199},4,[200,203,204],{"id":201,"text":202},"45987559","Thank you! I agree, antenna definitely needs some improvement.",{"id":133,"text":134},{"id":205,"text":206},"46001562","Working on the bottom side I only used the heat gun really carefully on the resistors then used a soldering iron with a fine tip for the usb-c connector since the leads are…",{"commenters":208,"max_depth":198,"maker_replies":198,"first_comment_mins":209,"lifespan_hours":210},38,227,48,[212,216,220,222,224,225,227,228,230,231,232,234,236,240,242,244,247,248,250,252,255,257,258,259,261,264,267,269,272,273,276,279,283,286,289,292,296,299,301,305,307,310,313,316,319,321,323,326,329,333],[213,39,33,214,215,39],"45996676","project\u002Fneutral\u002Fidea","jacquesm",[217,39,33,218,219,39],"45996691","project\u002Fneutral\u002Fprivacy","atemerev",[73,37,33,221,74,39],"project\u002Fmixed\u002Fperformance",[201,37,39,223,11,37],"maker\u002Fneutral\u002Fperformance",[98,37,33,223,99,39],[105,32,33,226,106,39],"project\u002Fneutral\u002Fdesign",[133,32,39,226,11,37],[109,32,39,229,110,39],"commenter\u002Fneutral\u002Fnone",[136,32,33,226,86,39],[113,32,33,226,114,39],[184,32,37,233,185,39],"project\u002Fcritical\u002Fidea",[177,32,39,235,178,39],"other\u002Fcritical\u002Fidea",[237,32,39,238,239,39],"45999171","other\u002Fneutral\u002Fnone","sho_hn",[241,32,33,226,195,39],"45999507",[243,32,39,229,178,39],"45999556",[245,32,39,238,246,39],"46006143","lelanthran",[146,32,33,214,147,39],[154,33,33,249,155,39],"project\u002Fneutral\u002Fexecution",[158,33,37,251,159,39],"project\u002Fcritical\u002Fexecution",[253,33,33,249,254,39],"46001551","4b11b4",[205,33,39,256,11,37],"maker\u002Fneutral\u002Fexecution",[142,198,33,214,143,39],[194,198,39,229,195,39],[191,198,39,260,155,39],"commenter\u002Fneutral\u002Fpricing",[262,198,39,263,99,39],"46002855","commenter\u002Fpositive\u002Fpricing",[265,198,39,229,266,39],"46004211","myself248",[85,18,18,268,86,39],"project\u002Fpositive\u002Fidea",[89,270,18,271,90,39],6,"project\u002Fpositive\u002Fdesign",[173,270,33,226,174,39],[274,270,39,238,275,39],"46003340","k__",[165,277,33,278,166,39],7,"project\u002Fneutral\u002Fperformance",[280,281,37,282,99,39],"46002833",8,"project\u002Fcritical\u002Fprivacy",[120,284,18,285,121,39],9,"project\u002Fpositive\u002Fexecution",[77,287,18,288,78,39],10,"maker\u002Fpositive\u002Fdocs",[290,287,39,291,11,37],"45994718","maker\u002Fneutral\u002Fnone",[293,287,33,294,295,39],"46002446","project\u002Fmixed\u002Fdocs","unwind",[297,287,39,229,298,39],"46004915","nhecker",[124,300,33,249,125,39],11,[302,300,33,303,304,39],"45997578","project\u002Fneutral\u002Fdocs","VTimofeenko",[306,300,33,249,239,39],"45998143",[308,300,39,238,309,39],"45999583","joemi",[311,300,39,238,312,39],"46001241","Neywiny",[314,300,39,238,315,39],"46000216","numpad0",[317,300,39,238,318,39],"46000342","rts_cts",[320,300,39,238,86,39],"46002184",[322,300,39,238,315,39],"46003516",[324,300,39,238,325,39],"46006512","uticus",[81,327,18,328,82,39],12,"maker\u002Fpositive\u002Fnone",[330,331,33,249,332,39],"45996754",13,"Gys",[334,331,39,229,335,39],"45996870","kube-system",[],[338,343,348,353,358,362],{"id":339,"name":340,"points":341,"category":342},"45974012","downdetectorsdowndetector",591,"infrastructure",{"id":344,"name":345,"points":346,"category":347},"45931331","searchepsteinfiles.com",329,"data",{"id":349,"name":350,"points":351,"category":352},"45967079","trisolarchaos.com",249,"learning_science",{"id":354,"name":355,"points":356,"category":357},"45958988","Astral",236,"dev_tools",{"id":359,"name":360,"points":361,"category":342},"45953977","ESPectre",215,{"id":363,"name":364,"points":365,"category":357},"45938517","Continuous Claude",170,false,"v2",{"id":369,"name":5,"line":6,"ai":366,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":370,"top":18,"kw":371,"maker":11,"domain":10,"tier":19,"attempts":39,"strip":372,"url":9,"mix":373,"praise":69,"objection":94,"sub":21},45984461,0.13,[23,24,25,26,27],"3333300310030331030005533155303300000053",[18,31,32,33],1794036686039]