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I am a developer and loves to develop all kind of things for me to simplify my life.
Now I'm looking for the possibility to wear a tiny device that receives signals from an app of mine to vibrate when some notifications come up. The transmission would be Bluetooth.

Is there such a device in form of a e.g. bracelet? When there isn't, what parts do I need to build one?

Thanks!

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closed as off-topic by PeterJ, Daniel Grillo, Peter Smith, PlasmaHH, uint128_t Apr 11 '16 at 16:01

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  • 2
    \$\begingroup\$ Yes, it's called a "smart watch". \$\endgroup\$ – Dave Tweed Apr 10 '16 at 17:12
  • \$\begingroup\$ @dave-tweed +1 You made my day :D \$\endgroup\$ – user59864 Apr 10 '16 at 17:53
  • \$\begingroup\$ @DaveTweed Some exercise bands can fit the bill: FitBit (some of them have Bluetooth LE), Microsoft Band, and others. \$\endgroup\$ – Nick Alexeev Apr 10 '16 at 18:31
  • \$\begingroup\$ +1 to the smartwatch. A pebble time costs about 120 USD (the first model is even cheaper), and there is an SDK that lets you develop your own apps for it if simple notifications are not enough. \$\endgroup\$ – 0x6d64 Apr 10 '16 at 19:48
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You need a Vibration Motor. They can look like this:

Vib Motor

Besides this you will need some bluetooth chip to interface the motor and enable it to receive notifications from your mobile phone. Getting everything (motor + BT module + Battery + charging circuit) in a wearable form factor would be slightly difficult depending upon your expertise level.

Alternatively you can use commonly available smart watches which already have everything ready for you. you just need to program them accordingly.

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    \$\begingroup\$ lol 'slightly' +1 \$\endgroup\$ – Vladimir Cravero Apr 10 '16 at 17:44

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