Adafruit has today announced that the Adafruit Metro Mini 328 5V 16MHz has now been updated, and provides a small development board that can be programmed using the the Arduino IDE by selecting‘UNO’ in the boards dropdown.
The usful USB-to-Serial connection which is built into the Adafruit Metro Mini, stands it apart from other small development boards such as the Pro Trinket 3V or 5V. Specifications of the Adafruit Metro Mini 328 include :
• 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, 3.3V 50mA available via FTDI chip
• USB to Serial converter, there’s a genuine SiLabs CP2104 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
• 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
For more information on the new Adafruit Metro Mini 328 jump over to the offiical Adafruit website for details via the link below.
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