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Atto (Pre-Order)


Out of stock

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Atto (Pre-Order)



Includes the following:
1x Atto board
2x 8-Pin Male Headers – 0.05″ (1.27 mm) Pitch (Unsoldered)

Out of stock

SKU: ATTO-V01-RB-B Category:


Atto is the world’s smallest Arduino compatible board! It is based on the ATmega32U4 microcontroller and comes with reset push-button as well as an RGB (rainbow) LED controlled by 3 PWM channels.


Specs and Features

Dimension0.40" x 0.45" (10.3 mm x 11.5 mm)
Weight0.04 oz (0.68 g)
Operating Voltage3.3 V
Input Voltage4 - 13 V
Digital I/O Pins12 + 3 (RGB LED)
PWM Channels4 + 3 (RGB LED)
Analog Input Channels4
InterfaceUSB, SPI, I2C (TWI), ISP
PeripheralsReset button, RGB (rainbow) LED
BootloaderArduino Leonardo
Flash Memory32 KB (ATmega32U4) of which 4 KB used by bootloader
SRAM2.5 KB (ATmega32U4)
EEPROM1 KB (ATmega32U4)
Clock Speed16 MHz
Pin Pitch0.05" (1.27 mm)


Atto Pinout Diagram


Atto Schematic


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