[{"data":1,"prerenderedAt":255},["ShallowReactive",2],{"project-16962695":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":29,"sentiment":30,"stance_mix":31,"scored_comments":35,"aspects":36,"strip":39,"post_text":40,"what":41,"said":63,"maker_in_thread":108,"shape":120,"grid":125,"attempts":217,"same_week":218,"maker_shows":33,"maker_hidden":247,"reader_version":248,"card":249},"16962695","un0rick","FPGA Ultrasound Imaging on a Raspberry Pi","title","Show HN: FPGA Ultrasound Imaging on a Raspberry Pi","http:\u002F\u002Fun0rick.cc\u002FFPGA-Rpi","un0rick.cc","kelu124",1525124532,2018,199,34,181,2155,9,"notable","hardware","medical ultrasound imaging","other",[24,25,26,27,28],"ultrasound imaging","fpga","raspberry pi","open source ultrasound","piezo probe","curious",0.231,{"positive":32,"neutral":33,"mixed":34,"critical":34},2,3,0,5,{"design":37},{"positive":38,"critical":34},1,[34,34,34,34,34,34,34,34,34,33,34,34,34,34,34,34,34,34,34,34,33,33,34,34,34,34,35,34,34,35,34,34,34,34],null,{"problem":40,"audience":40,"pricing":40,"motivation":40,"time_to_build":40,"stack":42,"openness":61,"stage":62,"team_size":62},[43,51,55],{"value":44,"source":45,"evidence":46},"FPGA","commenter",[47],{"id":48,"by":49,"text":50},"16965824","rwmj","It uses Project Icestorm which is absolutely great. So much better using an open source toolchain than the proprietary horrors that FPGA vendors inflict on us. I wrote a quick…",{"value":52,"source":45,"evidence":53},"Project Icestorm open source toolchain",[54],{"id":48,"by":49,"text":50},{"value":56,"source":57,"evidence":58},"Raspberry Pi","maker",[59],{"id":60},"post","open_source","unknown",{"praise":64,"objections":69,"requests":77,"questions":85,"alternatives":94},[65],{"value":66,"source":45,"evidence":67},"Open source FPGA toolchain is valuable",[68],{"id":48,"by":49,"text":50},[70],{"value":71,"source":45,"evidence":72},"Ultrasound probes are expensive due to piezo crystal supply",[73],{"id":74,"by":75,"text":76},"16965798","projektfu","My understanding is that the probes are the expensive part. The rest is added value, for sure, but there is something of a monopoly on high quality piezo crystals used in the…",[78],{"value":79,"source":45,"evidence":80},"Explain the benefit of the FPGA approach in plain English",[81],{"id":82,"by":83,"text":84},"16963208","daxfohl","The github is a little more descriptive and answers a few more questions: https:\u002F\u002Fgithub.com\u002Fkelu124\u002Fun0rick\u002F (though don't expect all your questions to be answered here either).…",[86],{"value":87,"source":45,"evidence":88},"What does an FPGA offer over a CPU or DSP for this?",[89,90],{"id":82,"by":83,"text":84},{"id":91,"by":92,"text":93},"16963457","CamperBob2","Not OP, but FPGAs are good for realtime signal processing, including initial processing needed to filter and downconvert high frequency signals to make them accessible to…",[95,102],{"value":96,"source":45,"evidence":97},"Butterfly Network handheld ultrasound",[98],{"id":99,"by":100,"text":101},"16963974","car","An amazing portable US is soon coming from Butterfly Network. The transducer plus DSP is on a very large integrated circuit, and it can do breathtaking stuff for a device of this…",{"value":103,"source":45,"evidence":104},"VScan handheld ultrasound",[105],{"id":106,"by":75,"text":107},"16965789","I'm looking forward to the introduction of this device, but it should be noted that color Doppler is also available on the VScan handheld. I think MEMS sensors are going to…",{"comments":109,"answered":38,"key":110},4,[111,114,117],{"id":112,"text":113},"16965938","I would definitely be happy to chat with the sdr community to see how we could interface. Ping me ?",{"id":115,"text":116},"16965956","Thanks for sharing this!",{"id":118,"text":119},"16965933","OP here -- I had played with a wireless probe and developed a very basic python framework around it, see https:\u002F\u002Fgithub.com\u002Fkelu124\u002FpyUProbe1 . Same origin: Shenzen. 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