Bell Gril

19880Published On May 14,2016 18:18 PMshare0
Those follow scenes often happen in our company."Hello,your takeout have gone,please open the door."Five minutes later..."Hello,your takeout have gone for a long time,please open the door..."But you have opened the door five minute ago,just the courier don't know. There's no voice chat on the door.How to let the courier know the door's open?When doorbell ringing, how can everybody open the door?In my opinion,we need a bell girl help us.When you open the door,she'll tell the man outdoor it has opened.He can come in himself.Today,we make a"Bell Girl",and we believe this Instructable is the most comprehensive step-by-step guide to make yourself"Bell Girl".

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Grove - Recorder
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WS2812B Digital RGB LED Flexi-Strip 144 LED - 1 Meter
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Grove - Relay
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Grove - Magnetic Switch
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