Adafruit QT Py RP2040

Rating:
93% of 100
SKU: ADA4900 Brand: Adafruit
What a cutie pie! Or is it... a QT Py? This diminutive dev board comes with one of our new favorite chip, the RP2040. It's been made famous in the new Raspberry Pi Pico and our Feather RP2040 and ItsyBitsy RP2040, but what if we wanted something really smol?
$20.35 AUD, inc GST
$18.50 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 16th of Apr

Quantity Discounts:

  • 10-25 $17.76 (exc GST)
  • 25+ $17.21 (exc GST)
- +

4 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

What a cutie pie! Or is it... a QT Py? This diminutive dev board comes with one of Adafruit's new favorite chip, the RP2040. It's been made famous in the new Raspberry Pi Pico and Adafruit's Feather RP2040 and ItsyBitsy RP2040, but what if Adafruit wanted something really smol?

A new chip means a new QT Py, and the Raspberry Pi RP2040 is no exception. When Adafruit saw this chip Adafruit thought "this chip is going to be awesome when Adafruit give it the cuuutie QT Py Treatment", and so they did! This QT Py features the RP2040, and all niceties you know and love about the original QT Py

Plug-and-play STEMMA QT

The star of the QT Py is Adafruit's favorite connector - the STEMMA QT, a chainable I2C port that can be used with any of Adafruit's STEMMA QT sensors and accessories. Having this connector means you don't need to do any soldering to get started.

What can you pop into the QT port? How about OLEDsInertial Measurment UnitsSensors a-plenty. All plug-and-play thanks to the innovative chainable design: SparkFun Qwiic-compatible STEMMA QT connectors for the I2C bus so you don't even need to solder. Just plug in a compatible cable and attach it to your MCU of choice, and you’re ready to load up some software and measure some light.

Use any SparkFun Qwiic boards! Seeed Grove I2C boards will also work with this adapter cable.

Software Support

At the time of launch, there is no Arduino core support for the chip on this board. There is great C/C support, an official MicroPython port, and a CircuitPython port! We of course recommend CircuitPython because we think it's the easiest way to get started and it has support with most of Adafruit's drivers, displays, sensors, and more, supported out of the box so you can follow along with Adafruit's CircuitPython projects and tutorials.

QT Py RP2040 Specifications

Pinout and shape is Seeed Xiao compatible, with castellated pads so you can solder it to a PCB with a cut out to allow the bottom components some breathing room. In addition to the QT connector, They also added an RGB NeoPixel (with a controllable power pin to allow for ultra-low-power usage), and both boot-mode and reset buttons (great for restarting your program or entering the bootloader). This QT Py comes with loose 0.1" headers you can solder in for breadboard use

While the RP2040 has lots of onboard RAM (264KB), it does not have built-in FLASH memory. Instead, that is provided by the external QSPI flash chip. On this board there is 8MB, which is shared between the program it's running and any file storage used by MicroPython or CircuitPython. When using C/C you get the whole flash memory, if using Python you will have about 3 MB remaining for code, files, images, fonts, etc.

  • Same size, form-factor, and pin-out as Adafruit's SAMD-based QT Py
  • USB Type C connector If you have only Micro B cables, this adapter will come in handy!
  • RP2040 32-bit Cortex M0 dual-core running at ~125 MHz @ 3.3V logic and power
  • 264 KB RAM
  • 8 MB SPI FLASH chip for storing files and CircuitPython/MicroPython code storage. No EEPROM
  • Native USB supported by every OS - can be used in Arduino or CircuitPython as USB serial console, MIDI, Keyboard/Mouse HID, even a little disk drive for storing Python scripts.
  • Can be used with Arduino IDE or CircuitPython
  • Built-in RGB NeoPixel LED
  • 13 GPIO pins (11 breakout pads and two QT pads):
    • Four 12 bit ADCs (one more than Pico)
    • Two I2C ports (one on the QT connector, one on the breakout pads)
    • SPI and UART peripherals, in standard QT Py locations,
    • PWM outputs on every IO pin - for servos, LEDs, etc
    • There are 6 GPIO in consecutive order for PIO compatibility
  • 3.3V regulator with 600mA peak output
  • Both Reset button and Bootloader select buttons for quick restarts (no unplugging-replugging to relaunch code)
  • Really really small

About the RP2040

Inside the RP2040 is a 'permanent ROM' USB UF2 bootloader. What that means is when you want to program new firmware, you can hold down the BOOT button while plugging it into USB (or pulling down the RUN/Reset pin to ground) and it will appear as a USB disk drive you can drag the firmware onto. Folks who have been using Adafruit products will find this very familiar - Adafruit use the technique on all Adafruit's native-USB boards. Just note you don't double-click reset, instead hold down BOOTSEL during boot to enter the bootloader!

The RP2040 is a powerful chip, which has the clock speed of Adafruit's M4 (SAMD51), and two cores that are equivalent to Adafruit's M0 (SAMD1). Since it is an M0 chip, it does not have a floating point unit or DSP hardware support - so if you're doing something with heavy floating point math, it will be done in software and thus not as fast as an M4. For many other computational tasks, you'll get close-to-M4 speeds!

For peripherals, there are two I2C controllers, two SPI controllers, and two UARTs that are multiplexed across the GPIO - check the pinout for what pins can be set to which. There are 16 PWM channels, each pin has a channel it can be set to (ditto on the pinout).

You'll note there's no I2S peripheral, or SDIO, or camera, what's up with that? Well, instead of having specific hardware support for serial-data-like peripherals like these, the RP2040 comes with the PIO state machine system which is a unique and powerful way to create custom hardware logic and data processing blocks that run on their own without taking up a CPU. For example, NeoPixels - often Adafruit bitbang the timing-specific protocol for these LEDs. For the RP2040, Adafruit instead use PIO object that reads in the data buffer and clocks out the right bitstream with perfect accuracy. Same with I2S audio in or out, LED matrix displays, 8-bit or SPI based TFTs, even VGA! In MicroPython and CircuitPython you can create PIO control commands to script the peripheral and load it in at runtime. There are 2 PIO peripherals with 4 state machines each.

    This product is listed in:

    Raspberry Pi>Pico>RP2040 Boards

    Product Comments

    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!

    Write Your Own Review

    Videos

    View All

    Guides

    Raspberry Pi 5 Vs Raspberry Pi 4 Model B | Comparison & Benchmarking

    The Raspberry Pi 5 is here and one of the biggest questions is, how does it stack up against the pr...
    The Raspberry Pi 5 is here and one of the biggest questions is, how does it stack up against the pr...

    Raspberry Pi 5 | Review, Performance & Benchmarks

    The Raspberry Pi 5 is here! Our favourite credit card-sized computer has just gotten an update and ...
    The Raspberry Pi 5 is here! Our favourite credit card-sized computer has just gotten an update and ...

    3D Printed Case For Raspberry Pi Pico and PiicoDev Boards

    Let me introduce a new 3D printable case for the Raspberry Pi Pico and the PiicoDev ecosystem. There...
    Let me introduce a new 3D printable case for the Raspberry Pi Pico and the PiicoDev ecosystem. There...

    Upgrade your Project for the Raspberry Pi 4

    The New Version of the Raspberry Pi 4 has started going out to makers everywhere. If you are wanting...
    The New Version of the Raspberry Pi 4 has started going out to makers everywhere. If you are wanting...

    Projects

    safePower

    I like working with the Pi Zero W and Pi 4 as they are very compact, very powerful and very cheap fo...
    I like working with the Pi Zero W and Pi 4 as they are very compact, very powerful and very cheap fo...

    ESP32 IR-Triggered Camera with Home Assistant Integration

    I love the ESP line-up. I started by messing around with the ESP8266 and I completely fell in love w...
    I love the ESP line-up. I started by messing around with the ESP8266 and I completely fell in love w...

    LuMa 1 - The Neo Disco Ball

    It is real and here it is! Including everything you need to make one a Luma 1 for yourself! S...
    It is real and here it is! Including everything you need to make one a Luma 1 for yourself! S...

    Educational Workshops

    Raspberry Pi Workshop for Beginners

    Welcome to the Raspberry Pi Workshop for Beginners! Here you'll be able to follow along with our s...
    Welcome to the Raspberry Pi Workshop for Beginners! Here you'll be able to follow along with our s...
    Feedback

    Please continue if you would like to leave feedback for any of these topics:

    • Website features/issues
    • Content errors/improvements
    • Missing products/categories
    • Product assignments to categories
    • Search results relevance

    For all other inquiries (orders status, stock levels, etc), please contact our support team for quick assistance.

    Note: click continue and a draft email will be opened to edit. If you don't have an email client on your device, then send a message via the chat icon on the bottom left of our website.

    Makers love reviews as much as you do, please follow this link to review the products you have purchased.