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Adafruit Feather nRF52840 Express

The Adafruit Feather nRF52840 Express is the new Feather family member with Bluetooth Low Energy and native USB support featuring the nRF52840! Adafruit’s take on an ‘all-in-one’ Arduino-compatible + Bluetooth Low Energy with built-in USB plus battery charging.

$76.95

Availability: 9 in stock

Buy now, pay later available.

SKU PHI1003195 Category Tags ,
PHI1003195

Description:

The Adafruit Feather nRF52840 Express is the new Feather family member with Bluetooth Low Energy and native USB support featuring the nRF52840! Adafruit’s 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.
This chip has twice the flash, and four times the SRAM of its earlier sibling, the nRF52832 – 1 MB of FLASH and 256KB of SRAM. Compared to the nRF51, this board has 4-8 times more of everything.

With added Arduino IDE support – you can program the nRF52840 chip directly to take full advantage of the Cortex-M4 processor and then call into the Nordic SoftDevice radio stack when you need to communicate over BLE. Since the underlying API and peripherals are the same for the ‘832 and ‘840, you can supercharge your older nRF52832 projects with the same code with a single recompile!

First BLE-friendly CircuitPython board! CircuitPython works best with disk drive access, and this is the only BLE-plus-USB-native chip that has the memory to handle running a little Python interpreter. The massive RAM and speedy Cortex M4F chip make this a good match.

It’s got tons of excellent peripherals: plenty of GPIO, analog inputs, PWM, timers, etc. Best of all, it’s got that native USB!, no need for a separate USB serial chip like CP2104 or FT232. Serial is handled as a USB CDC descriptor, and the chip can act like a keyboard, mouse, MIDI device, or even disk drive. This chip has TinyUSB support – that means you can use it with Arduino as a native USB device and act as UART (CDC), HID, Mass Storage, MIDI, and more!

Some other upgrades tossed in are an extra ‘USER’ switch that could be used to trigger OTA updates (or whatever you choose), a NeoPixel LED for status updates, 2 MB of QSPI Flash for storing CircuitPython files, and an SWD connector.

Pre-programmed with Adafruit’s UF2 bootloader, which can use either command line UART programming with nrfutil (we use this for Arduino) or drag-n-drop mass storage for CircuitPython installation and also because mass-storage-drive bootloaders make updating firmware so easy. Ability to use Adafruit’s command-line tools with your favourite editor and toolchain. If you’re going to use an SWD programmer/debugger (for even more advanced usage), we have a standard 2×5 0.05″ connector.

Bluetooth Low Energy is the hottest new low-power, 2.4GHz spectrum wireless protocol. In particular, it’s the only wireless protocol that you can use with iOS without needing special certification and is supported by all modern smartphones. This makes it excellent for use in portable projects that will make use of an iOS or Android phone or tablet. Also is supported in Mac OS X and Windows 8 and up.

To make it easy to use for portable projects, Adafruit added a connector for a 3.7V Lithium polymer battery and built-in battery charging. Of course, you don’t need a battery because it will run fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when it’s available. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.

 

Specifications:

    • ARM Cortex M4F (with HW floating point acceleration) running at 64MHz
    • 1MB flash and 256KB SRAM
    • Native Open Source USB stack – pre-programmed with UF2 bootloader
    • Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
    • FCC / IC / TELEC certified module
    • Up to +8dBm output power
    • 1.7v to 3.3v operation with internal linear and DC/DC voltage regulators
    • 21 GPIO, 6 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with four outputs each)
    • Hardware SPI, UART, I2C and I2S on any pins
    • Pin #3 red LED for general purpose blinking, NeoPixel for colourful feedback
    • Power/enable pin
    • 4 x mounting holes
    • Reset button
    • SWD connector for debugging
    • Works out of the box with all of our Adafruit FeatherWings!
    • Weight: 6g
    • Dimensions: 51mm x 23mm x 7.2mm (without header pins)

 

Contents:

      • 1 x Adafruit Feather nRF52840 Express
Weight 0.01 kg
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Australian Orders

We ship Australia-wide to all addresses, including PO Box, Parcel Locker, etc. The following shipping options available are listed below: 

  • Standard Shipping – Free (low cost / small products orders under $35 AUD) – Sent via standard Australia Post stamped mail, this shipping option has no tracking and support other than messages from Phipps Electronics to confirm the package has been dispatched to Australia Post.
  • Parcel Shipping (higher cost / larger products orders over $35 AUD or Postage paid at checkout) – Sent via Australia Post Parcel Service or Courier Service, this shipping option has full tracking.
  • Express Post – Sent via Australia Post Express Service, this shipping option has full tracking.

View the table below for shipping time estimates for Australian orders. These estimates are based on Australia Post's recent delivery performance and do not take into account any current disruptions which may affect delivery time.

StateStamped PostageParcel PostExpress Post
NSWUp to 4 business days2 - 4 business days1 - 2 business days
VIC3 - 6 business days3 - 5 business days2 - 3 business days
QLD3 - 6 business days3 - 5 business days2 - 3 business days
SA4 - 7 business days 4 - 6 business days2 - 3 business days
WA6 - 12 business days6 - 8 business days2 - 3 business days
TAS5 - 7 business days5 - 6 business days2 - 3 business days
ACT3 - 6 business days2 - 4 business days1 - 2 business days
NT7 - 12 business days7 - 10 business days3 - 4 business days

 

New Zealand Orders

We ship to New Zealand, to all addresses, including PO Boxes. Packages shipped to New Zealand are sent through Australia Post with 2 shipping options available.

  • Standard Parcel
  • Express Parcel

View the table below for shipping time estimates for orders to New Zealand. These estimates are based on Australia Post's recent delivery performance and do not take into account any current disruptions which may affect delivery time.

CountryStandard ParcelExpress Parcel
New Zealand7 - 12 business days5 - 8 business days

 

International Orders

We ship to most countries worldwide, there may be limitations on the addresses they can be delivered based on each individual country. Orders are shipped by Australia Post, in the rare circumstance that Australia Post can't deliver to the selected country we will attempt to ship with another shipping service.

View the link below for shipping time estimates. These estimates are based on Australis Post's recent delivery performance and do not take into account any current disruptions which may affect delivery time.

CLICK HERE For Australia Post International Transit Times.


If you have any questions, please have a look at the customer service portal where you will find answers to many common questions, or you can reach out to us through the contact us page.

Adafruit Feather nRF52840 Express 2Adafruit Feather nRF52840 Express
$76.95

Availability: 9 in stock

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