{"product_id":"adafruit-metro-m0-express-designed-for-circuitpython-atsamd21g18","title":"Adafruit METRO M0 Express - designed for CircuitPython - ATSAMD21G18","description":"\u003cmeta content=\"text\/html; charset=utf-8\" http-equiv=\"content-type\"\u003e\n\u003cp style=\"display: inline !important;\"\u003e\u003cstrong\u003eMetro is Adafruit's series of microcontroller boards for use with the Arduino IDE. This new Metro M0 Expressboard looks a whole lot like the original Metro 328, but with a huge upgrade. Instead of the ATmega328, this Metro features a ATSAMD21G18 chip, an ARM Cortex M0+. It's our first Metro that is designed for use with CircuitPython!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"display: inline !important;\"\u003e \u003c\/p\u003e\n\u003cp style=\"display: inline !important;\"\u003e \u003c\/p\u003e\n\u003cp style=\"display: inline !important;\"\u003eCircuitPython is Adafruit's beginner-oriented flavor of MicroPython - and as the name hints at, its a small but full-featured version of the popular Python programming language specifically for use with circuitry and electronics.\u003c\/p\u003e\n\u003cp\u003eNot only can you use CircuitPython, but the Metro M0 is also usable in the Arduino IDE.\u003c\/p\u003e\n\u003cp\u003eAt the Metro M0's heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new Arduino Zero. This chip has a whopping 256K of FLASH (8x more than the Atmega328) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program \u0026amp; debug capability built in with no need for an FTDI-like chip.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower the METRO\u003c\/strong\u003e with 7-9V polarity protected DC or the micro USB connector to any 5V USB source. The 2.1mm DC jack has an on\/off switch next to it so you can turn off your setup easily. The METRO will automagically switch between USB and DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMETRO has 25 GPIO pins\u003c\/strong\u003e, 12 of which are analog in, and one of which is a true analog out. There's a hardware SPI port, hardware I2C port and hardware UART. Logic level is 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative USB\u003c\/strong\u003e, there's no need for a hardware USB to Serial converter as the Metro M0 has built in USB support. When used to act like a serial device, the USB interface can be used by any computer to listen\/send data to the METRO, and can also be used to launch and update code via the bootloader. It can also act like a keyboard, mouse or MIDI device as well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour indicator LEDs and one NeoPixel\u003c\/strong\u003e, on the front edge of the PCB, for easy debugging. One green power LED, two RX\/TX LEDs for data being sent over USB, and a red LED connected. Next to the reset button there is an RGB NeoPixel that can be used for any purpose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 MB SPI Flash \u003c\/strong\u003estorage chip is included on board. You can use the SPI Flash storage like a very tiny hard drive. When used in Circuit Python, the 2 MB flash acts as storage for all your scripts, libraries and files. When used in Arduino, you can read\/write files to it, like a little datalogger or SD card, and then with our helper program, access the files over USB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy reprogramming\u003c\/strong\u003e, comes pre-loaded with the \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-metro-m0-express-designed-for-circuitpython\/uf2-bootloader\"\u003eUF2 bootloader\u003c\/a\u003e, which looks like a USB storage key. Simply drag firmware on to program, no special tools or drivers needed! It can be used to load up CircuitPython, PXT\/MakeCode or Arduino IDE (it is bossa-compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes fully assembled with headers, tested, and with the UF2 bootloader loaded on. We also include 4 rubber bumpers to keep it from slipping off your desk. No soldering required to use, plug and play!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note\u003c\/strong\u003e,\u003cwbr\u003e\u003c\/wbr\u003e CircuitPython does not come preloaded. See the full guide linked below for instructions on installing it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-metro-m0-express-designed-for-circuitpython\"\u003eCheck out our full guide for pinouts, schematics, drivers, instructions, Fritzing object, and more!\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"fluid-width-video-wrapper\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/6a_d6TrGMlU?start=487\" allowfullscreen=\"\" frameborder=\"0\" id=\"fitvid605599\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ca data-toggle=\"collapse\" href=\"https:\/\/www.adafruit.com\/#technical-details\" class=\"toggle-link\"\u003e\n\u003ch2 id=\"tab_technical-details\" class=\"visible-sm visible-xs\" style=\"display: inline !important;\"\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003c\/a\u003e\n\u003cdiv id=\"technical-details\" class=\"panel-collapse in-md in-lg collapse in\"\u003e\n\u003ca id=\"technical-details-anchor\" class=\"invizzy-anchor\" name=\"technical-details\"\u003e\u003c\/a\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\u003eDetailed specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eATSAMD21G18 @ 48MHz with 3.3V logic\/power\u003c\/li\u003e\n\u003cli\u003e256KB of FLASH + 32KB of RAM\u003c\/li\u003e\n\u003cli\u003e2 MB SPI Flash chip\u003c\/li\u003e\n\u003cli\u003eNo EEPROM\u003c\/li\u003e\n\u003cli\u003e32.768 KHz crystal for clock generation \u0026amp; RTC\u003c\/li\u003e\n\u003cli\u003e3.3V regulator with 500mA peak current output\u003c\/li\u003e\n\u003cli\u003eUSB native support, comes with USB bootloader and serial port debugging\u003c\/li\u003e\n\u003cli\u003eYou also get tons of pins - 25 GPIO pins, 5 more than the Metro 328\u003c\/li\u003e\n\u003cli\u003eHardware Serial, hardware I2C, hardware SPI support\u003c\/li\u003e\n\u003cli\u003ePWM outputs on almost all pins\u003c\/li\u003e\n\u003cli\u003e6 x 12-bit analog inputs\u003c\/li\u003e\n\u003cli\u003e1 x 10-bit analog output (DAC)\u003c\/li\u003e\n\u003cli\u003eBuilt in NeoPixel on pin #40\u003c\/li\u003e\n\u003cli\u003ePin #13 red LED for general purpose blinking\u003c\/li\u003e\n\u003cli\u003ePower on\/off switch\u003c\/li\u003e\n\u003cli\u003e4 mounting holes\u003c\/li\u003e\n\u003cli\u003eWe also include 4 rubber bumpers to keep it from slipping off your desk\u003c\/li\u003e\n\u003cli\u003eReset button\u003c\/li\u003e\n\u003cli\u003eAdafruit Black PCB with gold plate on pads\u003c\/li\u003e\n\u003cli\u003eDimensions: 71mm x 53mm \/ 2.8\" x 2.1\"\u003c\/li\u003e\n\u003cli\u003eHeight (w\/ barrel jack): 13mm \/ 0.5\"\u003c\/li\u003e\n\u003cli\u003eWeight: 20g\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":32901964660868,"sku":"ADA-3505","price":43.25,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0368\/0337\/9332\/products\/3505-00.jpg?v=1584963347","url":"https:\/\/roboticles.myshopify.com\/products\/adafruit-metro-m0-express-designed-for-circuitpython-atsamd21g18","provider":"roboticles","version":"1.0","type":"link"}