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A comment on 3-D printed plastic objects that can communicate with WiFi devices. Parent comment

Re:3-D printed plastic objects that can communicate with WiF... by icebraining on Wednesday December 06, 2017 @11:11AM (#15862179)
It requires a custom 3D-printed "device" on the door, which would modulate the Wi-Fi waves being scattered around (by your router, laptop, etc) into a signal that would indicate "open" or "closed".
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Re:3-D printed plastic objects that can communicate with WiF... by helb on Wednesday December 06, 2017 @12:48PM (#15863139)
I think the point was that the large moving metal object (garage door) itself would mess with the signal enough to detect the state without any additional device…
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Re:3-D printed plastic objects that can communicate with WiF... by detaro on Wednesday December 06, 2017 @01:42PM (#15863677)
I guess a first good experimental step would be to point a directional Wifi antenna in the direction of the door and monitor what it receives at what strength.
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Re:3-D printed plastic objects that can communicate with WiF... by TeMPOraL on Wednesday December 06, 2017 @01:27PM (#15863539)
Yup. And the actual implementation difficulty is in setting up the detection/analysis stack.
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