# BLE Vibration Bracelet
## Overview
https://youtu.be/RcDXAHy06HU
## Mindfulness & BLE Notifications
Build yourself a bracelet that buzzes when you’ve received notifications from an iOS device using Adafruit Feather Sense and DRV2605L breakout. Get subtle haptic feedback and a NeoPixel LED to indicate the app. It's also great for reminding yourself to get up and walk away from your desk or as a way to have a new awareness of how the perception of passing time varies based on what you're doing.
## Wearable Case
Brands are 3D printed in NinjaFlex TPU filament making a flexible wearable device. Strap features several slots for fitting different sizes wrists. A snap fit cover lets you easy remove and get access to components and on-board sensors.
## Prerequisite Guides
The following learn guides will provide additional information and demo code.
- [DRV2605L Learn Guide](https://learn.adafruit.com/adafruit-drv2605-haptic-controller-breakout)
- [Adafruit Feather Sense Learn Guide](https://learn.adafruit.com/adafruit-feather-sense)
- [Adafruit Feather nRF52840 Express Guide](https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather)
- [Getting Started with CircuitPython and BLE](https://learn.adafruit.com/circuitpython-nrf52840)
## Parts
##
- [Adafruit Feather Sense nRF52840](https://www.adafruit.com/product/4516)
- [Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062)
- [DRV2605L Haptic Motor Controller](https://www.adafruit.com/product/2305)
- [Vibration Mini Motor Disc](https://www.adafruit.com/product/1201)
- [3.7v 420mAh Battery](https://www.adafruit.com/product/4236)
- [Slide Switch](https://www.adafruit.com/product/1578)
- [10-wire Silicone Ribbon Wire](https://www.adafruit.com/product/3890)
## Adafruit Feather nRF52840 Express
Don't have the Adafruit Feather nRF52840 Sense? No worries! You can also use the [Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062).
### Adafruit Feather nRF52840 Express
[Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062)
The **Adafruit Feather nRF52840 Express** is the new Feather family member with Bluetooth® Low Energy and _native USB support_ featuring the nRF52840! It's our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built-in USB...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4062)
[Related Guides to the Product](https://learn.adafruit.com/products/4062/guides)
### Adafruit Feather nRF52840 Sense
[Adafruit Feather nRF52840 Sense](https://www.adafruit.com/product/4516)
The **Adafruit Feather Bluefruit Sense** takes our popular [Feather nRF52840 Express](https://www.adafruit.com/product/4062) and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth® Low Energy and...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4516)
[Related Guides to the Product](https://learn.adafruit.com/products/4516/guides)
### Adafruit DRV2605L Haptic Motor Controller - STEMMA QT / Qwiic
[Adafruit DRV2605L Haptic Motor Controller - STEMMA QT / Qwiic](https://www.adafruit.com/product/2305)
The DRV2605 from TI is a fancy little motor driver. Rather than controlling a stepper motor or DC motor, its designed specifically for controlling **haptic** motors - buzzers and vibration motors. Normally one would just turn those kinds of motors on and off, but this driver has...
Out of Stock
[Buy Now](https://www.adafruit.com/product/2305)
[Related Guides to the Product](https://learn.adafruit.com/products/2305/guides)
### Vibrating Mini Motor Disc
[Vibrating Mini Motor Disc](https://www.adafruit.com/product/1201)
\*BZZZZZZZZZZ\* Feel that? That's your little buzzing motor, and for any haptic feedback project you'll want to pick up a few of them. These vibe motors are tiny discs, completely sealed up so they're easy to use and embed.
Two wires are used to control/power the vibe....
Out of Stock
[Buy Now](https://www.adafruit.com/product/1201)
[Related Guides to the Product](https://learn.adafruit.com/products/1201/guides)
### Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh
[Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh](https://www.adafruit.com/product/4236)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 420mAh for a total of about 1.55 Wh. If you need a larger (or smaller!) battery,
Out of Stock
[Buy Now](https://www.adafruit.com/product/4236)
[Related Guides to the Product](https://learn.adafruit.com/products/4236/guides)
### Breadboard-friendly SPDT Slide Switch
[Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805)
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as...
In Stock
[Buy Now](https://www.adafruit.com/product/805)
[Related Guides to the Product](https://learn.adafruit.com/products/805/guides)
### Silicone Cover Stranded-Core Ribbon Cable - 10 Wire 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 10 Wire 1 Meter Long](https://www.adafruit.com/product/3890)
For those who are fans of our silicone-covered wires, but are always looking to _up their wiring game_. We now have **Silicone Cover Ribbon cables!** These may look _a lot_ like
In Stock
[Buy Now](https://www.adafruit.com/product/3890)
[Related Guides to the Product](https://learn.adafruit.com/products/3890/guides)
- [Next Page](https://learn.adafruit.com/ble-vibration-bracelet/circuit-diagram.md)
## Featured Products
### Adafruit Feather nRF52840 Sense
[Adafruit Feather nRF52840 Sense](https://www.adafruit.com/product/4516)
The **Adafruit Feather Bluefruit Sense** takes our popular [Feather nRF52840 Express](https://www.adafruit.com/product/4062) and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth® Low Energy and...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4516)
[Related Guides to the Product](https://learn.adafruit.com/products/4516/guides)
### Adafruit Feather nRF52840 Express
[Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062)
The **Adafruit Feather nRF52840 Express** is the new Feather family member with Bluetooth® Low Energy and _native USB support_ featuring the nRF52840! It's our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built-in USB...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4062)
[Related Guides to the Product](https://learn.adafruit.com/products/4062/guides)
### Adafruit DRV2605L Haptic Motor Controller - STEMMA QT / Qwiic
[Adafruit DRV2605L Haptic Motor Controller - STEMMA QT / Qwiic](https://www.adafruit.com/product/2305)
The DRV2605 from TI is a fancy little motor driver. Rather than controlling a stepper motor or DC motor, its designed specifically for controlling **haptic** motors - buzzers and vibration motors. Normally one would just turn those kinds of motors on and off, but this driver has...
Out of Stock
[Buy Now](https://www.adafruit.com/product/2305)
[Related Guides to the Product](https://learn.adafruit.com/products/2305/guides)
### Vibrating Mini Motor Disc
[Vibrating Mini Motor Disc](https://www.adafruit.com/product/1201)
\*BZZZZZZZZZZ\* Feel that? That's your little buzzing motor, and for any haptic feedback project you'll want to pick up a few of them. These vibe motors are tiny discs, completely sealed up so they're easy to use and embed.
Two wires are used to control/power the vibe....
Out of Stock
[Buy Now](https://www.adafruit.com/product/1201)
[Related Guides to the Product](https://learn.adafruit.com/products/1201/guides)
### Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh
[Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh](https://www.adafruit.com/product/4236)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 420mAh for a total of about 1.55 Wh. If you need a larger (or smaller!) battery,
Out of Stock
[Buy Now](https://www.adafruit.com/product/4236)
[Related Guides to the Product](https://learn.adafruit.com/products/4236/guides)
### Breadboard-friendly SPDT Slide Switch
[Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805)
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as...
In Stock
[Buy Now](https://www.adafruit.com/product/805)
[Related Guides to the Product](https://learn.adafruit.com/products/805/guides)
### Silicone Cover Stranded-Core Ribbon Cable - 10 Wire 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 10 Wire 1 Meter Long](https://www.adafruit.com/product/3890)
For those who are fans of our silicone-covered wires, but are always looking to _up their wiring game_. We now have **Silicone Cover Ribbon cables!** These may look _a lot_ like
In Stock
[Buy Now](https://www.adafruit.com/product/3890)
[Related Guides to the Product](https://learn.adafruit.com/products/3890/guides)
## Related Guides
- [Introducing the Adafruit nRF52840 Feather](https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather.md)
- [Adafruit Feather nRF52840 Sense](https://learn.adafruit.com/adafruit-feather-sense.md)
- [LED Matrix Hourglass](https://learn.adafruit.com/led-matrix-hourglass.md)
- [Mini LED Matrix Audio Visualizer](https://learn.adafruit.com/mini-led-matrix-audio-visualizer.md)
- [CircuitPython BLE Advertising Beacons](https://learn.adafruit.com/circuitpython-ble-advertising-beacons.md)
- [Programmable Wireless BLE Gesture Mouse](https://learn.adafruit.com/ble-wireless-gesture-mouse.md)
- [All the Internet of Things - Episode Three: Services](https://learn.adafruit.com/all-the-internet-of-things-episode-three-services.md)
- [Wearable Continuous Temperature Monitor with Adafruit IO](https://learn.adafruit.com/wearable-temperature-monitor.md)
- [Light-Up Reactive Ukulele](https://learn.adafruit.com/light-up-reactive-ukulele.md)
- [I2C Addresses and Troublesome Chips](https://learn.adafruit.com/i2c-addresses.md)
- [BLE Buzzy Box](https://learn.adafruit.com/ble-buzzy-box.md)
- [Introducing Adafruit Feather](https://learn.adafruit.com/adafruit-feather.md)
- [BLE Light Switch with Feather nRF52840 and Crickit](https://learn.adafruit.com/bluetooth-light-switch-with-crickit-and-nrf52840.md)
- [LED Bullwhip with Motion & Sound Reactivity](https://learn.adafruit.com/led-bullwhip.md)
- [Adafruit LSM6DS33 6-DoF IMU Breakout](https://learn.adafruit.com/lsm6ds33-6-dof-imu-accelerometer-gyro.md)
- [CircuitPython 101: State Machines, Two Ways](https://learn.adafruit.com/circuitpython-101-state-machines.md)
- [Introduction to Bluetooth Low Energy](https://learn.adafruit.com/introduction-to-bluetooth-low-energy.md)