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Adafruit Metro 328 without Headers

Art-Nr 5998453
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Description

We sure love the ATmega328 here at Adafruit, and we use them a lot for
our own projects. The processor has plenty of GPIO, Analog inputs,
hardware UART SPI and I2C, timers and PWM galore - just enough for
most simple projects. When we need to go small, we use a Pro Trinket
3V or 5V, but when size isn't as much of a concern, and a USB-serial
converter is required, we reach for an Adafruit METRO.

METRO is the culmination of years of playing with AVRs: we wanted to
make a development board that is easy to use and is hacker friendly.

* 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 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.
* 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, you can easily convert it to 3.3V logic
* USB to Serial converter, there's a 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 front edge 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
* Easy reprogramming, comes pre-loaded with the Optiboot bootloader,
which is supported by avrdude and only uses 512 bytes.
* Beautiful styling by PaintYourDragon and Bruce Yan, in Adafruit
Black with gold plated pads.
* Works with all Adafruit designed shields!

This version of the METRO 328 comes as a fully assembled and tested
development board but without any headers attached. We do include some
through-hole headers that you can solder on if you like, or you can
solder wires or header directly to the breakout pads. We also include
4 rubber bumpers to keep it from slipping off your desk

Technical Details

Detailed specifications:

* ATmega328 microcontroller with Optiboot (UNO) Bootloader
* USB Programming and debugging via the well-supported genuine FTDI
FT231X
* Input voltage: 7-9V (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
* 6-pin ICSP Header for reprogramming
* 32KB Flash Memory - 0.5K for bootloader, 31.5KB available after
bootloading
* 16MHz Clock Speed
* Compatible with "Classic" and "R3" Shields
* Adafruit Black PCB with gold plate on pads
* 53mm x 68.5mm / 2.1" x 2.7"
* Height (w/ barrel jack): 13mm / 0.5"
* Weight: 16.5g
* Derivative of "Arduino UNO R3 Reference design"
more

Specifications

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General information

Manufacturer Adafruit
Product type Electronics modules
Item number5998453
Manufacturer no.ada-2466

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Returns and warranty

Warranty 24 month Bring-in
30-day right of return
i

30-day right of return

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Availability

Mail delivery

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Collection

Basel

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Bern

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Dietikon

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Geneva

 Product is not ready for sale or temporarily not available. No delivery date known.
Not in stock

Kriens

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Lausanne

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

St Gallen

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Winterthur

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Wohlen

 Product is not ready for sale or temporarily not available. No delivery date known.
Not in stock

Zurich

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Information subject to change.

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Adafruit Metro 328 without Headers Adafruit Metro 328 without Headers