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Alert Welcome Sensor System – 3D printable model from Thingiverse Thingiverse
Engineering

Alert Welcome Sensor System

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This is a sensor system that could be used to detect whether a person is approaching.
This is a demo video that shows the feature of this.
https://drive.google.com/file/d/18dXX_CxkkV_r9b6Lb3qpZcPS9rGw1GqA/view?usp=sharing
There are 4 main function:
1: The buzzer remain silent when no one is coming, and the light shows green
2: when someone is close enough; in other word, is approaching, the light will turn red
3: when someone is approaching, the light will blink in blue, the the buzzer would sing twinkle twinkle little star
4: when the switch is press, the song would switch between song of joy and little star

There are some scenerio I think this product could be applied to
1: the restaurant would be iused this to detect whether customer are coming
2: people with impaired vision could use this to know whether people is approaching
3: people with hearing disability could also use the light to know whether people is approaching

The circuit design for this is quite simp
Category
Engineering
Source
Thingiverse
Published
What you need to print this: Beginner Low confidence
Single piece
Supports 1/3
Assembly 0/3
Settings 1/3
Bed size 0/3
Post-process 0/3
Printer
FDM / FFF
File format
STL
Material
Software
Cura, PrusaSlicer, or similar
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