Has anyone used a micro haptic vibration motor? Im trying to make a silent doorbell for the wife which is like a standard doorbell but instead of a loud ding dong, i want to make it go buzz buzz, kinda like a mobile phone does. So if we leave our phone on a table we can hear the vibrations even if the phone is on silent. My issue is, if i mount the haptic module inside a box it really dampens the vibration. Any ideas on how to make it louder or resonate from the shelf at the front door?
How is the motor mounted to the box ?
I have printed a small box with very little tolerance so it fits inside very snug, but dampens the vibration. I also printed a slightly larger one and it rattled/ virbrated inside the box but if i hold the box it pretty much goes silent. Im just wondering if I should just try a different motor, but this one is simple and runs from arduino nano
Was it actually attached to the larger box or just rattling around in it ? I would have thought that it needed to be attached so that it could transfer the vibration to the box
It was rattling inside the larger box which was fine until i picked it up. But the smaller box which it was tightly fitted did the same thing when picked up. I could barely feel it vibrating. Eventually the whole thing will be mounted to a wooden shelf which is installed into the side glass of the front door, I assumed a tighter fitting box would resonate against the glass making it somewhat like a phone vibration.
No... I was just showing a drawing for a "raw" vibration motor.
This could be completely an analog project. A box of plywood would contain the motor. Adjustable openings in the box could vary the sound coming through, or the way you attach the motor to the box. Rubber or silicone spacers or washers between the motor and the plywood. Tightening the bolts would amplify the sound.
Then again, a microcontroller, an mp3 module and a tiny speaker could produce exactly the sound you want. And much more.
As I pointed out in the description, i dont want noise except the vibration and there will be a led light. The idea is my wife runs a daycare and often has babies and kids asleep, hence the silent doorbell.
Either she hears it or she doesn't. You can't expect her to sense the vibrations from the shelf at the front door. And the sound coming from the resonating shelf can be produced with a speaker as well. That was my idea.
Then again, a resonating shelf might have a soft sound, but due to the big area, the sound carries farther away. So, if a speaker should do the same, you probably need a lot of big speakers at extremely low volume. And not a tiny single one.
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