Adafruit Learning System

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INTERNET OF THINGS - IOT

BLUEFRUIT / BLE

18 GUIDES | 147 PAGES | 0 FEATURED | 8 POPULAR

AtariFruit 2600 Joystick

Turn a classic Atari joystick into a wireless controller with the Feather nRF52 Bluetooth!

You can cut the cord on the CX-40 joystick and enjoy wireless gaming with this classic controller! Using an nRF52 Feather as a BLE input device, you can play games on any iOS device that uses the iCade standard. Or, code it to work with many other systems!

Create a Bluetooth LE App for iOS

Learn how to make a Bluetooth Low Energy App for iOS using Swift.

by Trevor Beaton

Follow along with our example code to learn how to develop Bluetooth LE apps for iOS! We'll show you how connections are made, data is transmitted and more behind the scenes using the Swift programming language.

Adafruit HUZZAH32 - ESP32 Feather

WiFi, Bluetooth, peripherals galore!

Aww yeah, it's the Feather you have been waiting for! The HUZZAH32 is our ESP32-based Feather, made with the official WROOM32 module. We packed everything you love about Feathers: built in USB-to-Serial converter, automatic bootloader reset, Lithium Ion/Polymer charger, and all the GPIO brought out so you can use it with any of our Feather Wings.

Bluefruit nRF52 Feather Learning Guide

Get started now with our most powerful Bluefruit board yet!

by Kevin Townsend

This learning guide will help you get setup and started with the ARM Cortex M4F based nRF52 Bluetooth Low Energy system on chip. You can run your Arduino code directly on the nRF52, and take advantage of the SoC's high performance, without sacrificing ease of use.

Using Bluefruit BLE to Give Disabled Users Switch Control Access to IOS Devices

Build an inexpensive Bluetooth device to give a disable user access to their iPad or iPhone

A physical disability can make it impossible to operate a touchscreen device such as an iPhone or iPad. Commercially available switch control devices can cost several hundred dollars but with the power of Adafruit Bluefruit BLE devices you can build an interface for a fraction of that cost. We show you how in this tutorial.

Wireless UNTZtrument Using BLE MIDI

Use a Feather Bluefruit LE to make a Wireless UNTZ!

In this guide, we will replace the Arduino Leonardo used in the standard UNTZtrument with either the Feather M0 Bluefruit LE, or the Feather 32u4 Bluefruit LE. This small hardware change will allow us send MIDI data wirelessly to computers and mobile devices using Bluetooth LE MIDI.

Circuit Playground & Bluetooth Low Energy

Interact with Circuit Playground from your phone or tablet without wires!

Learn how to connect a Bluefruit LE module to Circuit Playground and interact with the device using Adafruit's Bluefruit iOS and Android applications.

Install bluez on the Raspberry Pi

How to compile and install bluez, the Linux Bluetooth classic & low energy system, on the Raspberry Pi.

Learn how to download and install the latest version of the bluez Bluetooth library on the Raspberry Pi. Start using your Pi with Bluetooth classic & low energy in no time!

Datalogging Hat with FLORA BLE

Log Light Levels to Adafruit IO

Using the Bluefruit LE Connect app's MQTT support, you can push sensor values from your FLORA Bluetooth circuit to Adafruit IO for graphing and more.

Bluefruit LE Python Library

Talk to a Bluefruit LE from a Raspberry Pi, Linux, or Mac OSX machine.

Learn how to install and use a Python library that can communicate with a Bluefruit LE UART. The library works with a Raspberry Pi, Linux, or Mac OSX machine with a Bluetooth low energy adapter.

Adafruit Flora Bluefruit LE

A sewable BLE add-on for your Flora!

Would you like to add powerful and easy-to-use Bluetooth Low Energy to your wearable FLORA project? Heck yeah! With BLE now included in modern smart phones and tablets, its fun to add wireless connectivity. So what you really need is the new Adafruit Flora Bluefruit LE! The Flora Bluefruit LE makes it easy to add Bluetooth Low Energy connectivity to your Flora. Sew 4 traces (or solder 4 wires) and BooM! Bluetooth Low Energy!

Reverse Engineering a Bluetooth Low Energy Light Bulb

Control a Bluetooth Low Energy device with your own code!

Learn how to sniff Bluetooth low energy traffic using the Bluefruit LE sniffer and reverse engineer a simple Bluetooth low energy device like a light bulb. Then control the device yourself using a Raspberry Pi and Bluetooth low energy USB adapter!

Introducing the Adafruit Bluefruit LE Sniffer

Have a peak under the hood of BLE, sniffing and visualising traffic down to the packet level

by Kevin Townsend

The Bluefruit LE Sniffer allows you to sniff traffic between two Bluetooth Low Energy devices in a passive manner (meaning it isn't involved directly in the connection itself). This mini guide will show you how!

Convert your Model M Keyboard to Bluetooth with Bluefruit EZ-Key HID

Because nothing screams "portable" like a 6 lb keyboard.

by Benjamin Gould

Adafruit's Bluefruit HID controller is the easiest way to instantly add an HID keyboard or mouse interface to your project, even without a microcontroller. Did you know that you can also use it to convert a normal wired keyboard to supporting Bluetooth? In this project you'll learn exactly how to do it.. and in the process, you'll bring an iconic piece of computing hardware into the modern age. Time to start digging around in your closet for that old IBM PC you haven't seen for a few years, because with Bluefruit and the Model M, "it just clicks".

Bluetooth Temperature & Humidity Sensor

Build a wireless temperature & humidity sensor using the BlueFruit module!

In this project, you will learn how to connect a Bluetooth module to Arduino, transmit measurements from a temperature & humidity sensor to your computer, and display the data in a nice Python interface.

piBeacon - DIY Beacon with a Raspberry Pi

Turn your Rasperry Pi into a Bluetooth LE Beacon Device

by Kevin Townsend

This learning guide will show you everything you need to know to turn your Raspberry Pi into a "Bluetooth LE (BLE) Beacon" device using our Bluetooth 4.0 Adapter and the open source Bluez stack.

SNES EZ Key Bluefruit Game Pad

Cut the cord and build your own wireless bluetooth game pad!

by Ruiz Brothers

Replay those old school retro videos games and cut the cord to build your own wireless SNES controller powered the EZ-Key Bluefruit. Our SNES controller has 12 buttons, which is perfect for the EZ-Key. A slide switch at the bottom easily let's you power it on. The top includes a USB charger so you can recharge the lithium battery.

Bluetooth Arcade Stick

Cordless classic fun!

Here's a fun Saturday afternoon project to build a bluetooth arcade controller. It's perfect for playing those classic games on your desktop computer, laptop, or tablet.