A-Star Programmable Controllers

From top to bottom: A-Star 328PB Micro, 32U4 Micro, 32U4 Mini SV, and 32U4 Prime SV.

The Pololu A-Star microcontroller boards are general-purpose programmable modules based on Atmel AVR microcontrollers. A USB interface and preloaded Arduino-compatible bootloader on each A* makes it easy to get started programming them. The table below shows some key features and specifications of our A-Star microcontroller boards to help you choose the right one for your application:







A-Star 328PB Micro A-Star 32U4 Micro A-Star 32U4 Mini ULV

A-Star 32U4 Mini LV

A-Star 32U4 Mini SV
A-Star 32U4 Prime LV

A-Star 32U4 Prime SV
A-Star 32U4 Robot Controller LV

A-Star 32U4 Robot Controller SV
Microcontroller: ATmega328PB ATmega32U4
User I/O lines: 24 18 26 26(1) 26(1)
PWM outputs: 9 7 7 7 7(1)
Analog inputs: 8 8 12 12 12(1)
Ground access points: 6 2 4 43 44
User LEDs: 1 2 3 3 3
User pushbuttons: 3 3
USB interface: yes yes yes yes
Reset button: yes   yes yes yes
Power switch:     yes yes
Buzzer option:     yes yes
microSD option:     yes  
LCD option:     yes  
Motor drivers:       yes
Operating voltage: 3.3V VCC: 3.8 V to 15 V
5V VCC: 5.5 V to 15 V
5.5 V to 15 V ULV: 0.5 V to 5.5 V
LV: 2.7 V to 11.8 V
SV: 5 V to 40 V
LV: 2.7 V to 11.8 V
SV: 5 V to 36 V
LV: 2.7 V to 11 V
SV: 5.5 V to 36 V
Regulator type: 3.3 V or 5 V linear 5 V linear 5 V switching

ULV: step-up
LV: step-up/step-down
SV: step-down
5 V switching

LV: step-up/step-down
SV: step-down
5 V switching

LV: step-up/step-down
SV: step-down
Regulated current:(2) 100 mA 100 mA ULV: 500 mA
LV: 1 A
SV: 800 mA
1 A LV: 1 A
SV: 1.5 A
Dimensions: 1.3″ × 0.7″ 1″ × 0.6″ 1.9″ × 0.7″ 2.8″ × 2.1″ 2.6″ × 2.2″
Weight: 1.5 g(3) 1.3 g(3) 3.4 g(3) 13 g to 33 g 14 g to 23 g
1 Some microcontroller resources are used by on-board hardware.
2 These values are rough approximations for comparison purposes. Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology. See product documentation and performance graphs for details.
3 Without included optional headers.

Subcategories

The A-Star 328PB Micro is a tiny programmable module based on the ATmega328PB AVR microcontroller. It features 24 digital I/O pins (of which 9 can be used as PWM outputs and 8 as analog inputs) on a board measuring only 1.3″ × 0.7″ and ships preloaded with an Arduino-compatible serial bootloader. 5 V and 3.3 V versions are available in several clock speeds.

These compact 1.9″ × 0.7″ microcontroller boards are based on the ATmega32U4 AVR MCU. They feature efficient switching regulators for operation over a variety of voltage ranges, and all 26 of the MCU’s I/O pins are broken out. A MicroUSB interface and a preloaded Arduino-compatible bootloader make loading programs easier.

These microcontroller boards are based on the ATmega32U4 AVR MCU and arranged in the common Arduino form factor. They offer many additional features and improvements over competing products, including superior power management.

These Arduino-compatible programmable modules are designed to be the core of a small robot, either as an auxiliary controller atop a Raspberry Pi base or as complete control solutions on their own. On-board hardware includes dual motor drivers, an efficient voltage regulator, and level shifters for communication with a Raspberry Pi.


Products in category “A-Star Programmable Controllers”

Pololu item #: 3101
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

The A-Star 32U4 Micro is a tiny programmable module featuring the ATmega32U4 AVR microcontroller. It packs a Micro-USB interface and 18 digital input/output pins (of which 7 can be used as PWM outputs and 8 as analog inputs) onto a board measuring only 1″ × 0.6″ and ships preloaded with an Arduino-compatible bootloader.

Related Products

Thin (2mm) USB Cable A to Micro-B, 6 ft, Low/Full-Speed Only
USB Cable A to Micro-B, 6 ft
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Double-Sided
Pololu USB AVR Programmer v2.1

Related Categories

Programmable Controllers
Arduino
Polo-BOO! Halloween Sale
Zumo 32U4 Robot
P-Star Programmable Controllers
Solderless Breadboards
0.1″ (2.54 mm) Male Headers
0.1″ (2.54 mm) Female Headers
Premium Jumper Wires
Wires with Pre-Crimped Terminals
Regulators and Power Supplies
Switches, Buttons, and Relays
Sensors
Signal Adapters and Extenders
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Menu
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors