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ATTO

 The World’s 
 Smallest Arduino 
 Compatible 
 Board 

We've started shipping!

All orders will be processed
by mid November

ATTO

 The World’s 
 Smallest Arduino 
 Compatible Board 

We've started shipping!

All orders will be processed
by mid November

Small and compact design

Atto's tiny profile allows it to fit into any miniature projects! Perfect for wearables and portable devices.

Accessories and add-ons

Our expansion boards will help you prototype and complete your projects faster. Additional accessories and add-ons, such as battery power shields, will be coming soon!

1 Components

On a Tiny 4 Layer Board

Arduinos are supposed to make electronics projects easy. Atto achieves this philosophy with its peripherals including a reset button, RGB LED, external crystal, and voltage regulator, making it the best and smallest all-in-one package!

World’s Smallest
Measuring at 10.3 x 11.5 mm² and 0.68 grams, size is no longer a constraint for your next project

Arduino Ready
Comes with Arduino bootloader pre-flashed, providing you seamless out of the box experience

Serial and ISP Pins
USB, SPI, I2C, and ISP are available, to handle any interface and allows custom bootloader programming

Accessories & Extras
Expansion boards and add-ons will be continuously developed, to handle any type of projects

Let's compare!

Specs and Features

Dimension

0.40" x 0.45" (10.3 mm x 11.5 mm)

Weight

0.04 oz (0.68 g)

Microcontroller

ATmega32U4

Operating Voltage

3.3 V

Input Voltage

4 - 13 V

Digital I/O Pins

12 + 3 (RGB LED)

PWM Channels

4 + 3 (RGB LED)

Analog Input Channels

4

Interface

USB, SPI, I2C (TWI), ISP

Peripherals

Reset button, RGB (rainbow) LED

Bootloader

Arduino Leonardo

Flash Memory

32 KB (ATmega32U4) of which 4 KB used by bootloader

SRAM

2.5 KB (ATmega32U4)

EEPROM

1 KB (ATmega32U4)

Clock Speed

16 MHz

Pin Pitch

0.05" (1.27 mm)

Pinout Diagram

Attos will be back

Early December!

Limited supply

We’ll let you know through
our emailing list

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