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Vibration Sensor Switch
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Vibration Sensor Switch

by dlcross741 on Sat Jan 22, 2022 6:40 pm


I'm looking to trigger an event when someone steps on a stair tread. I looked at breakbeams, but the step is over 1m across so the range won't work for them. I'm leaning towards the Vibration Sensor Switches but wondered which of the three sensitivities would be most appropriate. Has anyone had any experience and would be able to make a suggestion?

I'm also open to other suggestions. I looked at the Force-Sensative Resistor, but that seems WAY too sensitive.


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Re: Vibration Sensor Switch

by adafruit_support_bill on Sat Jan 22, 2022 7:18 pm

The vibration sensors need substantial movement to trigger and would not work unless your stairs are pretty rickety.
An accelerometer might work. You could try one of the more sensitive (+/- 2G) types.
You could make an extended range break-beam type sensor using a laser diode module and a phototransistor:
Or an ultrasonic rangefinder like this one: https://www.adafruit.com/product/982

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Please be positive and constructive with your questions and comments.