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I am looking for a low-cost smart band (should be available in India) which can be controlled from Linux machine and or Android app to generate custom vibrations.

UPDATE

I see that there are many smartbands available in tha market. Few of the provides sdk and most of them are costly as compared to those without any SDK. I have come across some bands like Xiomi Mi, Fitbit inspire which are low cost.

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    What research have you already done? – hardillb Nov 8 '19 at 7:53
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    What’s your definition of “low cost”? How many do you need? What kind of connectivity do you need? What kind of battery life? Are you talking about a single prototype for a proof of concept or looking towards an actual deployment? – jcaron Nov 8 '19 at 22:46
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    @jcaron This is for research purpose. PoC is enough. – user5507 Nov 9 '19 at 8:06
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First of all, Welcome to IoT Stack Exchange! Now answering your question...

I really think you should make your own.

All you would need is an NRF51/2, a cheap vibration motor (those are usually rated 3V/70mA), a transistor and some good ol' coding.

I researched a little bit about bracelets with vibration that can also be controlled with 3rd party apps and I got to a conclusion:

It might be way easier to develop your own.

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    If you want to build a single prototype to have fun, probably. If you need to deploy a few dozen/hundred of actually usable bands, probably not. If you are looking at developing a product with tens of thousands of bands to be made, yet another story. – jcaron Nov 8 '19 at 22:48
  • @jcaron Since he said a PoC is enough, he should go for it. IMO, your comment is very right. For a prototype and product development, I dont think theres any good in buying it. But for a few dozen, for sure buying something is the recommended. – Marco Tulio Souza Nov 11 '19 at 15:06

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