Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz - STEMMA QT / Qwiic

AdafruitSKU: EXP-R15-787

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Sonderpreis9,74 € Normalpreis14,85 €

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Hersteller-Artikelnummer: 2590
Zolltarifnummer: 85423990
Herkunftsland: US

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Beschreibung

The V2 is a significant redesign, enough, so we consider it a completely new product. It still features the ATmega328 chip and is drop-in compatible with the original METRO Mini, but has many upgrades and improvements:

  • Same ATmega328 chip, running at 16 MHz, which makes it compatible with all Arduino UNO based libraries, codes and examples
  • Same pinout and size, same mounting hole locations - drop-in compatible!
  • Additional STEMMA QT port for plug and play I2C connections
  • USB Type C port instead of Micro B
  • Upgraded USB to serial converter from CP2104 to CP2102 - same great reliable drivers!
  • Can still be set to use 3.3V power and logic by soldering a jumper on the bottom.


METRO Mini V2 is the culmination of years of playing with AVRs: we wanted to make a tiny, breadboard-friendly development board that is easy to use and has a STEMMA QT port for plug and play support with hundreds of devices. Metro Mini can be programmed with the Arduino IDE (select 'UNO' in the boards dropdown)

  • ATmega328 brains - This popular chip has 32KB of flash (1/2 K is reserved for the bootloader), 2KB of RAM, clocked at 16MHz
  • Power the METRO Mini with 6-16V polarity protected on the Vin pin, or plug the micro USB connector to any 5V USB source.
  • METRO has 20 GPIO pins, 6 of which are Analog in as well, and 2 of which are reserved for the USB-serial converter. There's also 6 PWMs available on 3 timers (1 x 16-bit, 2 x 8-bit). There's a hardware SPI port, hardware I2C port, and hardware UART to USB.
  • GPIO Logic level is 5V but by cutting and soldering closed a jumper on the bottom, you can easily convert it to 3.3V logic
  • 5V onboard regulator with 150mA out, separate 3.3V 500mA regulator is also available.
  • USB to Serial converter, there's a genuine SiLabs CP2102N hardware USB to Serial converter that 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
  • USB C power and data
  • Four indicator LEDs, on the top of the PCB, for easy debugging. One green power LED, two RX/TX LEDs for the UART, and a red LED connected to pin PB5 / digital #13
  • Easy reprogramming, comes pre-loaded with the Optiboot bootloader
  • Beautiful styling by PaintYourDragon and Bruce Yan, in Adafruit Black with gold plated pads.

The Metro Mini comes as a fully assembled and tested board, with bootloader burned in and also some 0.1" header. Some light soldering is required if you'd like to plug it into a breadboard, or you can solder wires or header directly to the breakout pads. Once headers are installed they can be fitted into 0.6" wide sockets

Technical Details:

  • ATmega328 microcontroller with Optiboot (UNO) Bootloader
  • USB Programming and debugging via the well-supported genuine SiLabs CP2102N
  • Input voltage (Vin): 6-16V (a 9VDC power supply is recommended)
  • 5V logic with 3.3V compatible inputs, can be converted to 3.3V logic operation
  • 20 Digital I/O Pins: 6 are also PWM outputs and 6 are also Analog Inputs
  • 32KB Flash Memory - 0.5K for bootloader, 31.5KB available after bootloading
  • 16MHz Clock Speed
  • Adafruit Black PCB with gold plate on pads
  • JST SH 4-pin STEMMA QT port for plug and play I2C connections
  • Derivative of "Arduino UNO R3 Reference design" 
  • Open source hardware files on github!
  • Fritzing object in the Adafruit Fritzing Library
  • ATmega328P product page
  • Product Dimensions: 44.3mm x17.8mm x 4.9mm
  • Product Weight: 3.4g

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Zusätzliche Informationen

Zolltarifnummer:
85423990

Herkunftsland:
US

Das hängt davon ab, wo Sie sich befinden. Nach Übergabe der Bestellung an UPS beträgt die Lieferzeit in Deutschland ca. 2-3 Tage, innerhalb Europas ca. 1 Woche.

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