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Manufacturer:
Pololu
Order number:
EXP-R25-368
Manufacturer part number:
3101
Availability:
0

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€10.95*
Net price: €9.20
Value added tax: €1.75
All prices incl. value added tax
Please inform me as soon as the product is available again.

The Pololu A-Star 32U4 Micro is a general-purpose programmable module 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. Onboard features of the A-Star (abbreviated A*) include a 16 MHz resonator, a USB Micro-B connector, an in-system programming (ISP) header, and a pair of indicator LEDs. A voltage regulator and power selection circuit allow the board to be powered from either USB or an external 5.5 V to 15 V source, while a resettable PTC fuse on the USB VBUS supply and reverse protection on VIN help protect it from accidental damage.

The A-Star 32U4 Micro breaks out 15 general-purpose I/O lines along two rows of pins, including 7 usable as PWM outputs and 8 usable as analog inputs. It fits all this into a 20-pin dual in-line package (DIP) measuring only 1″ × 0.6″ (even smaller than competing ATmega32U4 boards like the Teensy 2.0 and Pro Micro), and 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.

Arduino compatibility

The A-Star 32U4 ships with a preloaded Arduino-compatible bootloader (which uses 4 KB of flash memory, leaving 28 KB available for the user program). We provide a software add-on that enables the board to be easily programmed from the Arduino environment.

The A-Star 32U4 uses the same microcontroller as the Arduino Leonardo and Arduino Micro and runs at the same frequency, making it just as powerful. Although the larger boards offer a few more I/O pins, the A-Star 32U4 Micro fits in an area half that of the Arduino Micro, and it takes up only 11% as much area as a standard full-size Arduino!

Features
  • Dimensions: 1" × 0.6" (1.05" × 0.6" 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)
  • Many I/O lines in a small package
    • 15 general-purpose I/O pins available along the sides of the board
    • 3 additional I/O pins available on ISP header
    • 7 pins can be configured as hardware PWM outputs
    • 8 pins can be configured as analog inputs
  • 2 user-controllable LEDs
  • Can be powered from USB or external 5.5 V to 15 V source on VIN
  • PTC fuse on VBUS supply
  • Reverse-voltage protection on VIN supply
  • 6-pin ISP header for use with an external programmer
  • Comprehensive user’s guide
Pololu USB AVR Programmer

€17.95*

Net price: €15.08
Value added tax: €2.87
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini LV

€18.05*

Net price: €15.17
Value added tax: €2.88
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini ULV

€16.95*

Net price: €14.24
Value added tax: €2.71
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 3.3V, 8MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 5V, 20MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 5V, 16MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu USB AVR Programmer

€17.95*

Net price: €15.08
Value added tax: €2.87
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini LV

€18.05*

Net price: €15.17
Value added tax: €2.88
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini ULV

€16.95*

Net price: €14.24
Value added tax: €2.71
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 3.3V, 8MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 5V, 20MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 5V, 16MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini LV

€18.05*

Net price: €15.17
Value added tax: €2.88
*including VAT, excluding shipping
Pololu 5V Step-Up/Step-Down Voltage Regulator S9V11F5

€4.76*

Net price: €4.00
Value added tax: €0.76
*including VAT, excluding shipping
Small Enclosed Piezo w/Wires

€1.19*

Net price: €1.00
Value added tax: €0.19
*including VAT, excluding shipping
Pololu Logic Level Shifter, 4-Channel, Bidirectional

€2.32*

Net price: €1.95
Value added tax: €0.37
*including VAT, excluding shipping
Female Crimp Pins for 0.1" Housings 100-Pack

€5.75*

Net price: €4.83
Value added tax: €0.92
*including VAT, excluding shipping
0.100" (2.54 mm) Female Header: 1x10-Pin, Straight

€0.69*

Net price: €0.58
Value added tax: €0.11
*including VAT, excluding shipping
0.1" (2.54mm) Crimp Connector Housing: 1x3-Pin 25-Pack

€0.66*

Net price: €0.55
Value added tax: €0.11
*including VAT, excluding shipping
0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack

€0.55*

Net price: €0.46
Value added tax: €0.09
*including VAT, excluding shipping
65 pcs Breadboard Jumper Wires with F/M connectors

€3.50*

Net price: €2.94
Value added tax: €0.56
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 3.3V, 12MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Waveshare RS232 Board

€4.25*

Net price: €3.57
Value added tax: €0.68
*including VAT, excluding shipping
Infrared Proximity Sensor, Obstacle-Avoiding

€3.84*

Net price: €3.23
Value added tax: €0.61
*including VAT, excluding shipping
9mm Electromagnetic Buzzer 40 Ohm, 4-6V, Top Opening

€1.42*

Net price: €1.19
Value added tax: €0.23
*including VAT, excluding shipping
Pololu A-Star 32U4 Mini SV

€14.23*

Net price: €11.96
Value added tax: €2.27
*including VAT, excluding shipping
Pololu USB AVR Programmer v2.1

€7.49*

Net price: €6.29
Value added tax: €1.20
*including VAT, excluding shipping
Slip Ring - 6 Wire (2A)

€15.65*

Net price: €13.15
Value added tax: €2.50
*including VAT, excluding shipping
Pololu A-Star 328PB Micro - 5V, 20MHz

€4.95*

Net price: €4.16
Value added tax: €0.79
*including VAT, excluding shipping
Adafruit Itsy Bitsy 32u4 - 5V 16MHz

€9.59*

Net price: €8.06
Value added tax: €1.53
*including VAT, excluding shipping
SMT Breakout PCB for SOIC-8, MSOP-8 or TSSOP-8 - (6 Pack)

€3.57*

Net price: €3.00
Value added tax: €0.57
*including VAT, excluding shipping
SMT Breakout PCB for SOIC-14 or TSSOP-14 - 6 Pack!

€5.01*

Net price: €4.21
Value added tax: €0.80
*including VAT, excluding shipping
SMT Breakout PCB for SOIC-16 or TSSOP-16 - 3 Pack!

€4.00*

Net price: €3.36
Value added tax: €0.64
*including VAT, excluding shipping
SMT Breakout PCB for SOIC-28 or TSSOP-28 - 3 Pack!

€5.95*

Net price: €5.00
Value added tax: €0.95
*including VAT, excluding shipping
2.9" e-Paper Display Modul mit SPI Interface

€18.90*

Net price: €15.88
Value added tax: €3.02
*including VAT, excluding shipping
Texas Instruments 74AHCT125 Quad Level-Shifter (3V to 5V)

€0.95*

Net price: €0.80
Value added tax: €0.15
*including VAT, excluding shipping
Solid-Core Wire Spool - 25ft - 22AWG - Black

€4.20*

Net price: €3.53
Value added tax: €0.67
*including VAT, excluding shipping
36-pin Stacking header - pack of 5!

€5.95*

Net price: €5.00
Value added tax: €0.95
*including VAT, excluding shipping
Itead Studio Nextion Accessory Cable

€3.95*

Net price: €3.32
Value added tax: €0.63
*including VAT, excluding shipping
1x40 Pin Break Away Headers - Straight 10-Pack

€3.80*

Net price: €3.19
Value added tax: €0.61
*including VAT, excluding shipping
Jumper Wires Premium 10cm M/M - 20 AWG (30 Pack)

€2.50*

Net price: €2.10
Value added tax: €0.40
*including VAT, excluding shipping
KNIPEX Electronic Super Knips Präzisionszange

€18.80*

Net price: €15.80
Value added tax: €3.00
*including VAT, excluding shipping
Micro-USB Cabel 0.5m

€1.40*

Net price: €1.18
Value added tax: €0.22
*including VAT, excluding shipping
Mini Panel Mount SPDT Toggle Switch

€1.19*

Net price: €1.00
Value added tax: €0.19
*including VAT, excluding shipping
Adafruit Si7021 Temperature & Humidity Sensor Breakout Board

€10.95*

Net price: €9.20
Value added tax: €1.75
*including VAT, excluding shipping
Soft Tactile Button (8mm) x 10

€2.09*

Net price: €1.76
Value added tax: €0.33
*including VAT, excluding shipping
SparkFun Pro Micro - 5V/16MHz

€21.13*

Net price: €17.76
Value added tax: €3.37
*including VAT, excluding shipping
NeoPixel RGBW LEDs w/ Integrated Driver Chip - Natural White - ~4500K - White Casing - 10 Pack

€5.95*

Net price: €5.00
Value added tax: €0.95
*including VAT, excluding shipping
Banana to IC Hook Cables

€6.45*

Net price: €5.42
Value added tax: €1.03
*including VAT, excluding shipping
Pololu USB Micro-B Connector Breakout Board

€1.42*

Net price: €1.19
Value added tax: €0.23
*including VAT, excluding shipping
Buzzer 5V - Breadboard friendly

€0.99*

Net price: €0.83
Value added tax: €0.16
*including VAT, excluding shipping
Banana to Alligator Cable

€4.25*

Net price: €3.57
Value added tax: €0.68
*including VAT, excluding shipping