A-Star 32U4 Mini LV

Pololu item #: 3103 65 in stock

Price break Unit price (US$)
1 19.95
5 17.76
25 15.55
100 13.95


backorders allowed

The A-Star 32U4 Mini LV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up/step-down regulator that allows it to be powered efficiently from a 2.7 V to 11.8 V supply. This compact 1.9″ × 0.7″ board breaks out all 26 of the microcontroller’s I/O pins (of which 7 can be used as PWM outputs and 12 as analog inputs), and loading programs is made easier by a Micro-USB interface and a preloaded Arduino-compatible bootloader.

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 Description Specs (14) Pictures (9) Resources (27) FAQs (0) On the blog (8) 

Documentation and other information

Pololu A-Star 32U4 User’s Guide (Printable PDF)

User’s manual for the Pololu A-Star 32U4 family of user-programmable boards.


File downloads

A-Star 32U4 Mini pinout diagram (269k pdf)
Printable pinout diagram of the A-Star 32U4 Mini ULV, LV, and SV boards.
A-Star 32U4 Mini schematic diagram (451k pdf)
Printable schematic diagram of the A-Star 32U4 Mini ULV, LV, and SV boards.
Pololu A-Star/Zumo 32U4 drivers for Windows (version 1.3.0.0) (7k zip)
This download contains the Windows drivers for the A-Star.
A-Star 32U4 Mini ULV dimension diagram (274k pdf)
A-Star 32U4 Mini LV dimension diagram (292k pdf)
A-Star 32U4 Mini SV dimension diagram (291k pdf)
A-Star 32U4 Mini ULV drill guide (62k dxf)
This DXF drawing shows the locations of all of the board’s holes.
A-Star 32U4 Mini LV drill guide (60k dxf)
This DXF drawing shows the locations of all of the board’s holes.
A-Star 32U4 Mini SV drill guide (63k dxf)
This DXF drawing shows the locations of all of the board’s holes.

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A-Star 32U4 Prime
Zumo 32U4 Robot
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