{"product_id":"adafruit-qt-py-rp2040","title":"Adafruit QT Py RP2040","description":"\u003cp\u003eWhat a cutie pie! Or is it... a QT Py? This diminutive dev board comes with one of our new favourite chips, the RP2040. It's been made famous in the new Raspberry Pi Pico \u003cem\u003eand\u003c\/em\u003e our Feather RP2040 and ItsyBitsy RP2040, but what if we wanted something really \u003cem\u003esmol?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eA new chip means a new QT Py, and the Raspberry Pi RP2040 is no exception. When we saw this chip we thought \"This chip is going to be awesome when we give it the cuuutie QT Py Treatment\", and so we did! This QT Py features the RP2040, and all the niceties you know and love about the original QT Py\u003c\/p\u003e\n\u003cp\u003eLooking for a case to keep your Qt Py safe? Click here to find it in our shop\u003c\/p\u003e\n\u003ch2\u003ePlug-and-play STEMMA QT\u003c\/h2\u003e\n\u003cp\u003eThe star of the QT Py is our favorite connector - the STEMMA QT, a chainable I2C port that can be used with any of our STEMMA QT sensors and accessories. Having this connector means you don't need to do any soldering to get started.\u003c\/p\u003e\n\u003cp\u003eWhat can you pop into the QT port? How about OLEDs! Inertial Measurment Units! Sensors 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.\u003c\/p\u003e\n\u003cp\u003eUse any SparkFun Qwiic boards! Seeed Grove I2C boards will also work with this adapter cable.\u003c\/p\u003e\n\u003ch2\u003eSoftware Support\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAt 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!\u003c\/strong\u003e We of course recommend CircuitPython because we think it's the easiest way to get started and it has support with most of our drivers, displays, sensors, and more, supported out of the box so you can follow along with our CircuitPython projects and tutorials.\u003c\/p\u003e\n\u003ch2\u003eQT Py RP2040 Specifications\u003c\/h2\u003e\n\u003cp\u003ePinout 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, we also added an \u003cstrong\u003eRGB NeoPixel\u003c\/strong\u003e (with a controllable power pin to allow for ultra-low-power usage), \u003cstrong\u003eand both boot-mode and reset buttons\u003c\/strong\u003e (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\u003c\/p\u003e\n\u003cp\u003eWhile 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.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSame size, form factor, and pin-out as our SAMD-based QT Py\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Type C connector \u003c\/strong\u003e- If you have only Micro B cables, this adapter will come in handy!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRP2040 32-bit Cortex M0+\u003c\/strong\u003e dual-core running at ~125 MHz @ 3.3V logic and power\u003c\/li\u003e\n\u003cli\u003e264 KB RAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 MB SPI FLASH\u003c\/strong\u003e chip for storing files and CircuitPython\/MicroPython code storage. No EEPROM\u003c\/li\u003e\n\u003cli\u003eNative 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.\u003c\/li\u003e\n\u003cli\u003eCan be used with \u003cstrong\u003eArduino IDE\u003c\/strong\u003e or \u003cstrong\u003eCircuitPython\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBuilt-in RGB NeoPixel LED\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13 GPIO pins (11 breakout pads and two QT pads):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour \u003c\/strong\u003e12 bit ADCs (one more than Pico)\u003c\/li\u003e\n\u003cli\u003eTwo I2C ports (one on the QT connector, one on the breakout pads)\u003c\/li\u003e\n\u003cli\u003eSPI and UART peripherals, in standard QT Py locations,\u003c\/li\u003e\n\u003cli\u003ePWM outputs on every IO pin - for servos, LEDs, etc\u003c\/li\u003e\n\u003cli\u003eThere are 6 GPIO in consecutive order for PIO compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.3V regulator with \u003cstrong\u003e600mA peak output\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth Reset button and Bootloader select buttons\u003c\/strong\u003e for quick restarts (no unplugging-replugging to relaunch code)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReally really small\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout the RP2040\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eInside the RP2040 is a 'permanent ROM' USB UF2 bootloader\u003c\/strong\u003e. 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 - we use the technique on all our native USB boards. Just note you don't double-click reset, instead hold down BOOTSEL during boot to enter the bootloader!\u003c\/p\u003e\n\u003cp\u003eThe RP2040 is a powerful chip, which has the clock speed of our M4 (SAMD51), and two cores that are equivalent to our M0 (SAMD21). 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!\u003c\/p\u003e\n\u003cp\u003eFor 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).\u003c\/p\u003e\n\u003cp\u003eYou'll note there's no I2S peripheral, 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 \u003cem\u003ecustom hardware logic and data processing blocks\u003c\/em\u003e that run on their own without taking up a CPU. For example, NeoPixels - often we bitbang the timing-specific protocol for these LEDs. For the RP2040, we instead use a 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.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"panel-collapse collapse in\" id=\"tab-technical-details-content\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cp\u003e\u003cstrong\u003eRP2040 Chip features \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual ARM Cortex-M0+ @ 133MHz\u003c\/li\u003e\n\u003cli\u003e264kB on-chip SRAM in six independent banks\u003c\/li\u003e\n\u003cli\u003eSupport for up to 16MB of off-chip Flash memory via a dedicated QSPI bus\u003c\/li\u003e\n\u003cli\u003eDMA controller\u003c\/li\u003e\n\u003cli\u003eFully-connected AHB crossbar\u003c\/li\u003e\n\u003cli\u003eInterpolator and integer divider peripherals\u003c\/li\u003e\n\u003cli\u003eOn-chip programmable LDO to generate core voltage\u003c\/li\u003e\n\u003cli\u003e2 on-chip PLLs to generate USB and core clocks\u003c\/li\u003e\n\u003cli\u003e30 GPIO pins, 4 of which can be used as analogue inputs \u003cstrong\u003e(not all GPIO are brought out on this board)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePeripherals\n\u003cul\u003e\n\u003cli\u003e2 UARTs\u003c\/li\u003e\n\u003cli\u003e2 SPI controllers\u003c\/li\u003e\n\u003cli\u003e2 I2C controllers\u003c\/li\u003e\n\u003cli\u003e16 PWM channels\u003c\/li\u003e\n\u003cli\u003eUSB 1.1 controller and PHY, with host and device support\u003c\/li\u003e\n\u003cli\u003e8 PIO state machines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eProduct Dimensions: 21.8mm x 17.8mm x 5.8mm\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eProduct Weight: 2.2g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":46375205830713,"sku":"xnl1787258168353","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/9176\/8121\/files\/adafruit-qt-py-rp2040_1.jpg?v=1787258178","url":"https:\/\/myoutfitstore.shop\/products\/adafruit-qt-py-rp2040","provider":"My Store","version":"1.0","type":"link"}