ATTO
The World’s
Smallest Arduino
Compatible
Board
Thank you for all
your support!
We’ll be back later
in 2021!
Thank you for all
ATTO
The World’s
Smallest Arduino
Compatible Board
Smallest Arduino
Compatible Board
Thank you for all your support!
We’ll be back later
in 2021!
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
