Overview

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 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

Adafruit Feather nRF52840 Express

PRODUCT ID: 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...
OUT OF STOCK

Adafruit Mini Skinny NeoPixel Digital RGB LED Strip - 60 LED/m

PRODUCT ID: 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...
$99.80
IN STOCK

Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

PRODUCT ID: 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...
$6.95
IN STOCK

Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long

PRODUCT ID: 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...
$1.95
IN STOCK

USB cable - USB A to Micro-B

PRODUCT ID: 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...
$2.95
IN STOCK

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.

This guide was first published on Jul 31, 2019. It was last updated on Jul 31, 2019. This page (Overview) was last updated on Oct 19, 2019.