# NeoPixel Badge Lanyard with Bluetooth LE
## Overview
https://youtu.be/Rm5B6ggfAko
Get noticed and stand out at the convention with this DIY light-up badge lanyard. Control the color and brightness with your phone over Bluetooth (BLE) with the Adafruit BlueFruit app. This is a great conversation starter on its own. Pair it with a [PyBadge](https://www.adafruit.com/product/4200) for extra geek points, or make a lanyard for everyone on your team and control ALL the colors. Make it red when you're running late, green when you're ready to network, and indigo when it's time to relax with a cold drink.
This is an easy-to-assemble project that requires a little light soldering and some drag-and-drop code. Most of the work is already done for you!
This is the easiest time I've ever had setting up a Bluetooth-to-microcontroller connection. Get the software installed and .. it just works. Hooray!
## Parts
Featured
### 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...
In Stock
[Buy Now](https://www.adafruit.com/product/4062)
[Related Guides to the Product](https://learn.adafruit.com/products/4062/guides)
Featured
### Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m
[Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m](https://www.adafruit.com/product/2959)
So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips!
These NeoPixel strips have 60 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide, 5 mm if you remove the strip from the...
Out of Stock
[Buy Now](https://www.adafruit.com/product/2959)
[Related Guides to the Product](https://learn.adafruit.com/products/2959/guides)
Featured
### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh
[Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898)
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 **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)...
In Stock
[Buy Now](https://www.adafruit.com/product/3898)
[Related Guides to the Product](https://learn.adafruit.com/products/3898/guides)
Featured
### Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long](https://www.adafruit.com/product/3892)
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/3892)
[Related Guides to the Product](https://learn.adafruit.com/products/3892/guides)
Featured
### USB cable - USB A to Micro-B
[USB cable - USB A to Micro-B](https://www.adafruit.com/product/592)
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller
Approximately 3 feet / 1 meter long
In Stock
[Buy Now](https://www.adafruit.com/product/592)
[Related Guides to the Product](https://learn.adafruit.com/products/592/guides)
### Additional Materials Needed
- 1" tubular webbing -- about a meter long in your preferred color
- Swivel hook for holding the badge
- Hot glue gun
- Soldering iron & accessories
- Needle & thread
You'll also need a smart phone that's capable of running the free Adafruit BlueFruit app.
- [Next Page](https://learn.adafruit.com/bluetooth-neopixel-badge-lanyard/wiring-diagram.md)
## Guide Products
### 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...
In Stock
[Buy Now](https://www.adafruit.com/product/4062)
[Related Guides to the Product](https://learn.adafruit.com/products/4062/guides)
### Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m
[Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m](https://www.adafruit.com/product/2959)
So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips!
These NeoPixel strips have 60 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide, 5 mm if you remove the strip from the...
Out of Stock
[Buy Now](https://www.adafruit.com/product/2959)
[Related Guides to the Product](https://learn.adafruit.com/products/2959/guides)
### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh
[Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898)
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 **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)...
In Stock
[Buy Now](https://www.adafruit.com/product/3898)
[Related Guides to the Product](https://learn.adafruit.com/products/3898/guides)
### Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long](https://www.adafruit.com/product/3892)
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/3892)
[Related Guides to the Product](https://learn.adafruit.com/products/3892/guides)
### USB cable - USB A to Micro-B
[USB cable - USB A to Micro-B](https://www.adafruit.com/product/592)
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller
Approximately 3 feet / 1 meter long
In Stock
[Buy Now](https://www.adafruit.com/product/592)
[Related Guides to the Product](https://learn.adafruit.com/products/592/guides)
## Related Guides
- [Introducing the Adafruit nRF52840 Feather](https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather.md)
- [Circuit Playground-O-Phonor](https://learn.adafruit.com/circuit-playground-o-phonor.md)
- [UART Communication Between Two CircuitPython Boards](https://learn.adafruit.com/uart-communication-between-two-circuitpython-boards.md)
- [PyPortal Event Count-Up Clock](https://learn.adafruit.com/pyportal-event-count-up-clock.md)
- [A Z80 CP/M emulator for the SAMD51](https://learn.adafruit.com/z80-cpm-emulator-for-the-samd51-grand-central.md)
- [PyLeap App](https://learn.adafruit.com/pyleap-app.md)
- [Wearable Continuous Temperature Monitor with Adafruit IO](https://learn.adafruit.com/wearable-temperature-monitor.md)
- [PyPortal MQTT Sensor Node/Control Pad for Home Assistant](https://learn.adafruit.com/pyportal-mqtt-sensor-node-control-pad-home-assistant.md)
- [Mini Golf Course with Circuit Playground and Crickit](https://learn.adafruit.com/mini-golf-course-with-makecode-circuit-playground-crickit.md)
- [Pinball Controller for iPad](https://learn.adafruit.com/pinball-controll-ipad.md)
- [PyLeap BLE Controlled NeoPixels with CLUE](https://learn.adafruit.com/pyleap-ble-controlled-neopixels-with-clue.md)
- [CPX Mystery Dreidel](https://learn.adafruit.com/cpx-mystery-dreidel.md)
- [Flashing LED Strand with MakeCode](https://learn.adafruit.com/flashing-led-strand-with-makecode.md)
- [ePaper Calendar Featuring Metro M4 Express Airlift and Tri-Color ePaper Shield](https://learn.adafruit.com/epaper-calendar-featuring-metro-m4-express-airlift-and-epaper-shield.md)
- [Mouse and Keyboard Control Using TinyUSB and BLE](https://learn.adafruit.com/mouse-and-keyboard-control-using-tinyusb-and-ble.md)
- [Paper Craft Zoetrope with Crickit](https://learn.adafruit.com/paper-craft-zoetrope-with-circuit-python.md)