1563 Pololu 3102 Pololu NewCondition
A-Star 32U4 Mini ULV

A-Star 32U4 Mini ULV

16.98

Product Code : 1563

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Incl. BTW: € 19,02 Excl. BTW: € 15,85

The A-Star 32U4 Mini ULV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up regulator that allows it to be powered efficiently from a 0.5 V to 5.5 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 analogue inputs), and loading programs is made easier by a Micro-USB interface and a preloaded Arduino-compatible bootloader.

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-Star 32U4 Mini; 7 of these are usable as PWM outputs and 12 are usable as analogue 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-Star easy to use with solderless breadboards, perfboards, and 0.1″-pitch connectors.

  • 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 analogue 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

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