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  • Pololu A-Star 32U4 Mini LV

    (1 customer review)

    £27.06 inc VAT (£22.55 ex VAT)

    2 in stock

    Brand: Pololu
    Part Number: 3103
    SKU: PPPOL3103
    Barcode: 5055421077426

    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.

     

    The Pololu A-Star 32U4 Mini boards are general-purpose programmable modules based on Atmel’s ATmega32U4 AVR microcontroller, which has 32 KB of flash program memory, 2.5 KB of RAM, and built-in USB functionality. The A-Star (abbreviated A*) adds a number of onboard features to support the microcontroller and make it easier to work with, including a 16 MHz crystal, a USB Micro-B connector, an in-system programming (ISP) header, a reset button, and three indicator LEDs.

     

    A robust power selection circuit enables seamless transitions between regulator power and USB power, and overcurrent and reverse-voltage protection help safeguard the board against accidental damage.

    All 26 general-purpose I/O lines on the ATmega32U4 are accessible on the A* 32U4 Mini; 7 of these are usable as PWM outputs and 12 are usable as analog inputs. The board measures 1.9″ × 0.7″, the same size as an Arduino Micro, and features a pair of mounting holes sized for #2 or M2 screws (not included). Its 0.1″ pin spacing makes the A* easy to use with solderless breadboards, perfboards, and 0.1″-pitch connectors.

    Our comprehensive user’s guide provides the basics you need to get started with the A-Star as well as detailed technical information for advanced users.

     

    • Dimensions: 1.9″ × 0.7″ (1.95″ × 0.7″ including USB Micro-B connector)
    • Programmable 16 MHz Atmel ATmega32U4 AVR microcontroller
      • 32 KB flash (4 KB used by bootloader, leaving 28 KB available for user program by default)
      • 2.5 KB SRAM
      • 1 KB EEPROM
      • Native full-speed USB (12 Mbps)
    • Preloaded with Arduino-compatible bootloader (no external programmer required)
    • All I/O lines from the ATmega32U4 broken out in a compact package
      • 26 general-purpose I/O pins available along the sides of the board
      • 7 pins can be configured as hardware PWM outputs
      • 12 pins can be configured as analog inputs
    • 3 user-controllable LEDs
    • Reset button
    • Can be powered from USB or from an external source:
      • ULV: 0.5 V to 5.5 V
      • LV: 2.7 V to 11.8 V
      • SV: 5 V to 36 V
    • Switching regulator enables efficient low-power operation
    • Power selection circuit with seamless switching between power sources and overcurrent protection
    • Reverse-voltage protection on external power inputs
    • Precision 16 MHz crystal
    • 6-pin ISP header for use with an external programmer
    • Comprehensive user’s guide

    Additional information

    Weight0.01 kg
    Brand

    Part Number

    3103

    SKU

    PPPOL3103

    Barcode

    5055421077426

    1 review for Pololu A-Star 32U4 Mini LV

    1. David Lewing


      I was hoping to run this on a 9v supply, the nearest I had was a 10v mains plug type of PSU. I managed to blow up the V In on three of these, if the max in is 11v then may be my PSU has spikes. Although the V In is shot I can still run them by putting +5v on the +5v line.Just beware.DaveL

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