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Robust switch
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gaminn:
Hi,
I'm looking for a small switch low profile (5 mm height max) that is robust - it should withstand a child's (30 kg) step.

I used some noname tactile switch like this https://solarbotics.com/product/17390/ but it stopped working after several steps.

I also thought about designing switch using some conductive rubber glued on a surface and gold plated pads on PCB - the conductive rubber will touch PCB when someone steps on the surface.

Are there other options?

Thanks
Gyro:
If it deliberate step operation, then you can get proper foot switches, designed for musical instrument pedals etc.

Another idea is mechanical paddles with fixed mechanical end stops and attach microswitches.
gaminn:

--- Quote from: Gyro on August 09, 2019, 07:30:39 pm ---If it deliberate step operation, then you can get proper foot switches, designed for musical instrument pedals etc.

--- End quote ---

I really have 5 mm space between stationary surface and the surface where someone steps on.


--- Quote from: Gyro on August 09, 2019, 07:30:39 pm ---Another idea is mechanical paddles with fixed mechanical end stops and attach microswitches.

--- End quote ---

Good idea, thanks, will think about it.
m98:
A plate with an embedded magnet, some kind of flat spring or stiff foam and a hall sensor with adjustable trigger value on a pcb underneath.
FenTiger:
There are special switch mats that detect someone stepping on them, intended for security systems. They're thin enough to hide under a carpet: https://www.ebay.co.uk/itm/Large-Floor-Pressure-Alarm-Switch-Pad-Mat-PM156/253756658234
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