Wireless / Bluetooth®

Top view of an Adafruit Feather nRF52840 Sense board

Our Adafruit Bluefruit LE (Bluetooth® Smart, Bluetooth® Low Energy, Bluetooth 4.0) allows you to establish an easy-to-use wireless link between your Arduino and any compatible iOS or Android (4.3+) device. Create your own wireless Bluetooth keyboard controller in an hour with the Bluefruit EZ-Key: it's the fastest, easiest and bestest Bluetooth® controller. Bluefruit EZ-Link: the best Bluetooth® Serial Link device ever made.

shot of a Black woman's neon-green manicured hand holding up a Circuit Playground Bluefruit glowing rainbow LEDs.

Circuit Playground Bluefruit - Bluetooth® Low Energy

Product ID: 4333

Circuit Playground Bluefruit is our third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. We've taken the popular Circuit Playground Express and made it even better! Now the main chip is an nRF52840 microcontroller, which is not only more powerful, but also comes with Bluetooth® Low Energy...

$24.95

In stock

Angled shot of a Bluetooth 4.0 USB Module.

Bluetooth® 4.0 USB Module (v2.1 Back-Compatible)

Product ID: 1327

Add Bluetooth® capability to your computer super fast with a USB BT 4.0 adapter. This adapter is backwards compatible with v2.1 and earlier, but also supports the latest v4.0/ Bluetooth® Low Energy. Inside lies a CSR8510 Bluetooth® USB host. We've used this with great success on a Windows 7 computer, installing as a 'generic' Bluetooth® device, but we...

$11.95

53 in stock

Angled shot of a Adafruit Bluefruit LE UART Friend.

Adafruit Bluefruit LE UART Friend - Bluetooth® Low Energy (BLE)

Product ID: 2479

Would you like to add powerful and easy-to-use Bluetooth® Low Energy to your robot, art or other electronics 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 Bluefruit LE UART Friend! The Bluefruit LE UART Friend makes it easy to add Bluetooth® Low...

$17.50

In stock

Bluefruit LE Friend - Bluetooth® Low Energy (BLE 4.0) - nRF5182 - v3.0

Product ID: 2267

The Bluefruit LE Friend is your new BLE BFF! This USB-to-BLE board makes it easy to get your computer talking to your BLE-enabled phone or tablet using a standard serial/UART connection. In its simplest form, it works on the same principle as a common USB/Serial adapter (the FTDI Friend, for example!). Any data that you enter via your favorite terminal emulator on...

$19.95

In stock

Adafruit Bluefruit LE SPI Friend - Bluetooth® Low Energy (BLE)

Product ID: 2633

Would you like to add powerful and easy-to-use Bluetooth® Low Energy to your robot, art or other electronics 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 Bluefruit LE SPI Friend! The Bluefruit LE SPI Friend makes it easy to add Bluetooth® Low...

$17.50

68 in stock

Overhead shot of blue, rectangular Bluetooth PCB shield.

Adafruit Bluefruit LE Shield - Bluetooth® LE for Arduino

Product ID: 2746

Would you like to add powerful and easy-to-use Bluetooth® Low Energy to your robot, art or other electronics 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 Bluefruit LE Shield for Arduino! The Bluefruit LE Shield makes it easy to add Bluetooth® Low...

$19.95

60 in stock

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 our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built-in USB plus battery charging. With native USB it's even ready to join the CircuitPython party. We have other boards in the...

$24.95

In stock

Espruino Puck.js v2

Product ID: 3372

The Espruino Puck.js v2 is a low-energy Bluetooth® smart button that can be programmed and debugged wirelessly with JavaScript. It is both multi-functional and easy to use, with a custom circuit board, the latest Nordic chip, Bluetooth LE, NFC, magnetometer, temperature sensor, RGB LEDs, infrared, and much more, all enclosed in a tiny silicone case. You get all...

$39.95

25 in stock

Angled shot of a nRF51822 Bluetooth Low Energy Module.

nRF51822 Bluetooth® Low Energy Module - MDBT40-256RV3

Product ID: 4076

If you have a custom PCB design and you'd like to add a little Bluetooth® Low Energy, this module is ultra-compact and easy to use. It contains a Nordic nRF51822 Cortex M0 chip with an integrated BLE radio, along with most of the supporting circuitry and even a chip antenna. The whole thing is in a tin and comes with FCC, CE, and TELEC certifications. Please...

$7.95

32 in stock

Angled shot of rectangular microcontroller with headers.

Adafruit Feather 32u4 Bluefruit LE with Headers - Assembled

Product ID: 3379

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather 32u4 Bluefruit with Headers - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB and battery charging. Its an...

$31.95

71 in stock

Angled shot of a nRF52832 Bluetooth Low Energy Module.

nRF52832 Bluetooth® Low Energy Module - MDBT42Q-512KV2

Product ID: 4077

If you have a custom PCB design and you'd like to add a little Bluetooth® Low Energy, this module is ultra-compact and easy to use. It contains a Nordic nRF52832 chip that comes integrated with BLE radio as well as most of the supporting circuitry and even a chip antenna. The whole thing comes with FCC, CE, and TELEC certifications. Please note! The module comes...

$9.95

88 in stock

Adafruit Feather nRF52 Bluefruit LE - nRF52832

Product ID: 3406

The Adafruit Feather nRF52 Bluefruit is another easy-to-use all-in-one Bluetooth® Low Energy board, with a native-Bluetooth® chip, the nRF52832! It's our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB and battery charging. We have other boards in the Feather family, check'em out here. This chip has twice the flash,...

$24.95

In stock

Angled shot of a nRF52840 Bluetooth Low Energy Module with USB.

nRF52840 Bluetooth® Low Energy Module with USB - MDBT50Q-1MV2

Product ID: 4078

If you have a custom PCB design and you'd like to add a little Bluetooth® Low Energy, this module is ultra compact and easy to use. It contains a Nordic nRF52840 Cortex M4 chip that comes integrated with BLE radio, USB as well as most of the supporting circuitry and even a chip antenna. The whole thing is in a tin and comes with FCC, CE, and TELEC certifications....

$12.95

In stock

Angled shot of rectangular microcontroller.

Adafruit Feather 32u4 Bluefruit LE

Product ID: 2829

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather 32u4 Bluefruit - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB and battery charging. Its an Adafruit...

$29.95

In stock

Faded image of a rectangular microcontroller and text that reads "my newt".

Adafruit Feather nRF52 Pro with myNewt Bootloader - nRF52832

Product ID: 3574

The Adafruit Feather nRF52 Pro is another Bluetooth® Low Energy board for advanced projects and users who want to use a fully open-source Bluetooth® Low Energy 5.0 stack. It has a native Bluetooth chip, the nRF52832, as well as built-in USB Serial and battery charging! We have other boards in the Feather family, check'em out here. This is a special Feather -...

$27.50

In stock

Adafruit Feather M0 Bluefruit LE

Product ID: 2995

Feather is the new development board from Adafruit, and like its namesake, it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 Bluefruit LE - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built-in USB and battery charging. It's an Adafruit...

$29.95

In stock

Mini Bluetooth® Keyboard – Black

Product ID: 3601

Sure, you have a keyboard. Maybe it's wireless. Maybe it's even Bluetooth®. But do you have a mini Bluetooth® keyboard? Like Halloween candy, this keyboard is fun-size! If Shakespeare had this wee chiclet keyboard back in the day, he definitely would've remarked, "And though it be but little, it is fierce!" We got one of these with a DIY 'tele-prompter' kit...

$12.95

64 in stock

Adafruit Feather 32u4 Bluefruit LE with Stacking Headers - Assembled

Product ID: 3242

This is the Adafruit Feather 32u4 Bluefruit - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB and battery charging. It's an Adafruit Feather 32u4 with a BTLE module, ready to rock! Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new...

$32.95

92 in stock

Angled shot of rectangular Wi-Fi module with castellated pads.

ESP32-WROVER-B Module - ESP32 with PSRAM Module

Product ID: 3979

The ESP8266 started a small revolution by bringing WiFi to a small and cheap package that also had enough processing power and enough pins to get small things done. Now get ready to take your bite-sized WiFi capabilities to the next level with the ESP-WROVER-32 WiFi / Bluetooth® Classic / BLE Module! This modules is even more powerful than the WROOM-32 - it has a...

$9.95

In stock

Adafruit ItsyBitsy nRF52840 Express - Bluetooth® LE

Product ID: 4481

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy nRF52840 Express featuring the Nordic nRF52840 Bluetooth® LE processor! Teensy & powerful, with an fast nRF52840 Cortex M4 processor running at 64 MHz and 1 MB of FLASH - this microcontroller board is perfect when you want something very compact, with a heap-load of memory and...

$19.95

In stock

Angled shot of blue, rectangular, microcontroller.

Adafruit Feather nRF52840 Sense

Product ID: 4516

The Adafruit Feather Bluefruit Sense takes our popular Feather nRF52840 Express and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth® Low Energy and native USB support featuring the nRF52840! This Feather is an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB...

$39.50

In stock

Combination WiFi + Bluetooth® 4.0 USB Adapter

Product ID: 4827

Add both WiFi and Bluetooth® to your computer super fast with this USB Bluetooth® / WiFi Dongle! This little two-faced cutie is so versatile! Its Wi-Fi half can be used to make Internet of Things devices cable-free, or we can also take advantage of a single-board Linux computer's USB ports to add a low-cost, high-reliability wireless link. The Bluetooth®...

$14.95

In stock

Mijia Bluetooth® Temperature/Humidity Sensor with LCD Display

Product ID: 4881

Here is a jolly cute, palm-sized, Bluetooth®-enabled sensor to monitor your room's temperature and humidity. Only 43mm x 43mm, we dig its small form factor and minimal design. The shell is made of durable ABS material. Up front, you get a 1.5" (28x28mm) LCD display. These sensors are sold to work with the Mijia "Mi Home" App (iOS and Android) and are a low cost...

$9.95

In stock

Bangle.js v2 - Hackable Javascript Smart Watch

Product ID: 5427

Bangle.js 2 is an open, hackable smartwatch. With a sunlight-readable always-on screen, 4-week battery life, complete flexibility, and complete control of your data, Bangle.js 2 is a refreshing break from expensive smart watches. You can install new apps from the web or develop your own using JavaScript. All you need is a Web Browser (Chrome, Edge, or Opera) and you...

$149.95

96 in stock

Angled shot of thin, rectangular Bluetooth LED driver board.

Adafruit LED Glasses Driver - nRF52840 Sensor Board

Product ID: 5217

This board is designed to be a thin, Bluetooth®-enabled driver board for our Adafruit LED Glasses RGB LED matrix. That said, it's a perfectly good stand-alone development board for the Nordic nRF52840 chipset, with a very slim design, optional LiPo battery support, a few sensors, and a Stemma QT port for adding other devices or sensors with I2C plug-and-play. The...

$24.95

31 in stock

ESP32 Dual Antenna WiFi + Bluetooth® Module with 8MB FLASH - ESP32-WROOM-DA-N8

Product ID: 5344

ESP32-WROOM-DA (the DA is for Dual Antenna) is a powerful Wi-Fi + Bluetooth® Classic + Bluetooth® LE MCU module, with two complementary PCB antennas in different directions. Packed with 8 MB of internal QSPI Flash, it has lots of memory and great WiFi connectivity no matter where or how it is installed. ESP32-WROOM-DA is pin-to-pin compatible with...

$7.95

In stock

Angled shot of bluetooth sniffer device.

Bluefruit LE Sniffer - Bluetooth®Low Energy (BLE 4.0) - nRF5182 - Firmware Version 2

Product ID: 2269

Interested in learning how Bluetooth® Low Energy works down to the packet level? Debugging your own BLE hardware, and trying to spot where something is going wrong? Or maybe you're writing a custom application for your phone or tablet that needs to talk to existing BLE hardware, but you don't know how it works beneath the surface? We have the perfect tool for...

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$24.95

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Angled shot of rectangular microcontroller on white breadboard connected to a battery.

Adafruit Feather 32u4 Bluefruit LE - with or without headers

Product ID: 3503

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather 32u4 Bluefruit - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built in USB and battery charging. Its an Adafruit...