Adafruit microSD Card BFF Add-On for QT Py and Xiao

SKU: ADA5683 Brand: Adafruit

Coming soon! Sign up to be notified when these are in stockOur QT Py boards are a great way to make very small microcontroller projects that pack a ton of...

$5.95 AUD, inc GST

$5.41 AUD, exc GST

Available with a lead time
Expect dispatch between May 20 and May 22

Quantity Discounts:

10-25 $5.19 (exc GST)
25+ $5.03 (exc GST)

Coming soon! Sign up to be notified when these are in stock

Adafruit's QT Py boards are a great way to make very small microcontroller projects that pack a ton of power - and now Adafruit have a way for you to add a ton of storage, for reading and writing, with a micro SD card slot that can fit on the back of your miniature dev board. It uses the three SPI pins plus one chip select pin to access megs or gigs of data.

Adafruit call this the Adafruit microSD BFF - a "Best Friend Forever". When you were a kid you may have learned about the "buddy" system, well this product is kinda like that! A board that will watch your QT Py's back and give it more capabilities.

This PCB is designed to fit onto the back of any QT Py or Xiao board, it can be soldered into place or use pin and socket headers to make it removable. Onboard is a slim, high quality Molex push-pull micro SD card socket. Since the QT Py is already 3V, no level shifter or regulator is required. Adafruit are using SPI mode to interface, use the MOSI/MISO/SCK pins plus one other chip select pin. The default is TX but there are some solder jumpers you can use to select RX, A0 or A1.

Adafruit include some header that you can solder to your QT Py. You can also pick up an Itsy Bitsy short female header kit to make it removable but compact, you'll just need to trim down the headers to 7 pins long.

Comes as an assembled and tested PCB
For any QT Py or Xiao boards
Use any micro SD card that supports SPI mode with one CS pin.
Any Arduino / CircuitPython / MicroPython library can be used to talk to the card just like a normal SD card breakout!

microSD card and QT Py are not included.

This product is listed in:

Breakouts & Modules>

Product Comments

Start the conversation

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!