ADAFRUIT METRO Mini 328 MCU Development Board 2590

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Adafruit METRO Mini Development Board with Headers - ATmega328

Adafruit METRO Mini is a derivative of the Arduino UNO board (RS 769-7409) and a scaled down version of the METRO (RS 124-5519). You can find plenty of projects and example code to use and adapt. Running the ATmega328P at 16 MHz with 32 KB of flash and 2 KB of RAM it is perfect for most simple projects. There are 20 GPIO pins including analogue inputs, hardware UART, SPI and I2C, timers and PWM. Logic level is 5 V but it can easily be converted it to 3.3 V.

You can power the METRO Mini with a 6 V dc to 16 V dc PSU or by using the 5 V micro-USB connector. The METRO automagically switches between USB and DC.

Four indicator LEDs for easy debugging.

For projects where the board size is not important and you would prefer to have the headers pre-soldered onto the board there is the METRO board (RS 124-5519).

- ATmega328 microcontroller with Optiboot (UNO) Bootloader
- USB Programming and debugging via the well-supported genuine FTDI FT231X
- Input voltage: 6 V dc to 16 V dc (a 9 V dc power supply is recommended)
- 5 V onboard regulator with 150 mA out
- 5 V logic with 3.3 V compatible inputs
- 20 Digital I/O Pins: 6 are also PWM outputs and 6 are also Analogue Inputs
- 32 KB Flash Memory, 0.5 K for bootloader, 31.5 KB available after bootloading
- 16 MHz Clock Speed
- Supplied with 4 rubber bumpers
- 53 x 71 x 13 mm / 2.1" x 2.8" x 0.5”
- Weight: 19 g


If you use a Mac or Windows, then install the FTDI VCP drivers from FTDI to make the COM/Serial port show up correctly.

Adafruit METRO ATmega328 Development Boards

Attribute Value
Classification Development Board
Kit Name METRO Mini 328
Technology MCU
Processor Part Number ATmega328
Processor Type MCU
7 In stock for FREE next working day delivery
Price Each
£ 10.04
(exc. VAT)
£ 12.05
(inc. VAT)
Per unit
1 +
Related Products
CT-780 Upgrade Kit. Upgrade Refer Star 78K (CT-780)-based ...
CT-780 Upgrade Kit. Upgrade Refer Star 78K (CT-780)-based microcontrollers to 78K0/KE2Comes with evaluation board equipped with network controller and new device Compatible with Applilet EZ PL visual programming development environment.
The Adafruit Feather 32u4 FONA has all the ...
The Adafruit Feather 32u4 FONA has all the basic features shared by all the Feather 32u4 range together with built-in mobile communication. The FONA800 module is a quad band for 2G mobile communication anywhere in the world. Whether you want to send data, SMS or make phone calls you can ...
The Atmel UC3-A3 XPLAINED evaluation kit is a ...
The Atmel UC3-A3 XPLAINED evaluation kit is a hardware platform to evaluate the Atmel AT32UC3A3256 microcontroller. Atmel® AT32UC3A3256 microcontroller64Mbit SDRAMAnalogue input (to ADC) - Temperature sensor - RC filter Input/Output - One mechanical button - Four LEDs - Four expansion headers Footprints for external memory.
The Arduino Yun Rev 2 is a development ...
The Arduino Yun Rev 2 is a development board based on the ATmega32U4 microcontroller and Atheros AR9331 Linux Microprocessor. It’s perfect for your IoT based projects.The AR9331 runs Linux and Open WRT which means the Arduino Yun can connect to Wi Fi and Ethernet. Operating Voltage: 5 VDigital I/O Pins: ...