[{"data":1,"prerenderedAt":140},["ShallowReactive",2],{"project-17489077":3},{"id":4,"name":5,"line":5,"line_source":6,"title":7,"url":8,"domain":9,"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":19,"keywords":21,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":31,"aspects":32,"strip":34,"post_text":28,"what":36,"said":58,"maker_in_thread":83,"shape":88,"grid":91,"attempts":100,"same_week":101,"maker_shows":132,"maker_hidden":133,"reader_version":134,"card":135},"17489077","Create an IoT Environmental Sensor with NodeMCU and Lua","title","Show HN: Create an IoT Environmental Sensor with NodeMCU and Lua","https:\u002F\u002Fblog.alexellis.io\u002Fiot-nodemcu-sensor-bme280\u002F","blog.alexellis.io","alexellisuk",1531129806,2018,16,4,1326,2155,62,"shown","hardware","iot sensor",[22,23,24,25,26],"nodemcu","lua","environmental sensor","bme280","iot","quiet",null,{"positive":30,"neutral":31,"mixed":30,"critical":30},0,1,{"performance":33},{"positive":30,"critical":30},[30,30,35,30],3,{"problem":28,"audience":28,"pricing":28,"motivation":28,"time_to_build":28,"stack":37,"openness":57,"stage":57,"team_size":57},[38,44,48],{"value":39,"source":40,"evidence":41},"NodeMCU","maker",[42],{"id":43},"post",{"value":45,"source":40,"evidence":46},"Lua",[47],{"id":43},{"value":49,"source":40,"evidence":50},"InfluxDB",[51,54],{"id":52,"by":10,"text":53},"17507100","That looks awesome too. I used InfluxDB with my Raspberry Pi variant and plotted the data in graphs - https:\u002F\u002Fblog.alexellis.io\u002Fenvironmental-monitoring-dashboard\u002F This can be…",{"id":55,"by":10,"text":56},"17507089","I'm running 4 of these sensors right now and I am just using the small free-gift type of USB power packs. They are lasting several days without using deep sleep optimizations. In…","unknown",{"praise":59,"objections":68,"requests":69,"questions":70,"alternatives":75},[60],{"value":61,"source":62,"evidence":63},"Useful project for battery-powered data logging","commenter",[64],{"id":65,"by":66,"text":67},"17492791","joshu","Super useful. Have you worked out how to run for a long time from a smallish battery?",[],[],[71],{"value":72,"source":62,"evidence":73},"How to run for a long time from a small battery",[74],{"id":65,"by":66,"text":67},[76],{"value":77,"source":62,"evidence":78},"Raspberry Pi with MQTT broker and node server",[79],{"id":80,"by":81,"text":82},"17491592","mart187","Did a similar thing. MQTT broker and small node server to include current values. It's not generalized and tuned, but could be a nice starting point.…",{"comments":84,"answered":31,"key":85},2,[86,87],{"id":52,"text":53},{"id":55,"text":56},{"commenters":35,"max_depth":84,"maker_replies":84,"first_comment_mins":89,"lifespan_hours":90},422,52,[92,94,96,98],[80,30,30,93,81,30],"commenter\u002Fneutral\u002Fidea",[52,30,30,95,10,31],"project\u002Fpositive\u002Fidea",[65,31,35,97,66,30],"project\u002Fneutral\u002Fperformance",[55,31,30,99,10,31],"project\u002Fpositive\u002Fperformance",[],[102,107,112,117,122,127],{"id":103,"name":104,"points":105,"category":106},"17487552","Browsh",967,"dev_tools",{"id":108,"name":109,"points":110,"category":111},"17470037","Hacker News job trends",371,"data",{"id":113,"name":114,"points":115,"category":116},"17509601","Solving Rush Hour",223,"games",{"id":118,"name":119,"points":120,"category":121},"17506753","Markdown New Tab",218,"productivity",{"id":123,"name":124,"points":125,"category":126},"17505559","Oathkeeper",174,"infrastructure",{"id":128,"name":129,"points":130,"category":131},"17508151","Online challenge",143,"learning_science",42,false,"v2",{"id":136,"name":5,"line":5,"ai":133,"cat":19,"year":12,"points":13,"comments":14,"rec":27,"s":28,"top":17,"kw":137,"maker":10,"domain":9,"tier":18,"attempts":30,"strip":138,"url":8,"mix":139,"praise":61,"objection":-1,"sub":20},17489077,[22,23,24,25,26],"0030",[30,31,30,30],1794036567618]