DESCRIPTION
This Pololu A-Star 32U4 Mini board is a general-purpose programmable module based on the ATmega32U4 AVR microcontroller from Microchip (formerly Atmel), 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.
Each A-Star 32U4 Mini contains a switching regulator that efficiently produces 5 V from an external voltage source to power the microcontroller.
FEATURES
- Dimensions: 1.9″ × 0.7″ (1.95″ × 0.7″ including USB Micro-B connector)
- Programmable 16 MHz 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:
- SV: 5 V to 40 V
- Switching regulator enables efficient operation
- The power selection circuit allows for seamless switching between power sources and provides 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
RESOURCES
- Pololu A-Star 32U4 User’s Guide
- Pinout diagram of the A-Star 32U4 Mini
- Schematic diagram of the A-Star 32U4 Mini
- Pololu A-Star 32U4 drivers for Windows (version 1.3.0.0)
- A-Star 32U4 Arduino library
- AStar32U4 library documentation
- A-Star repository on GitHub
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We have a range of shipping options thanks to our long-term partnership with UPS FedEx DHL. Our warehouse staff are highly trained and will pack the goods according to our exact and precise specifications. Your products will go through an exhaustive inspection and properly secured before they are shipped. Everyday, we send to thousands of clients in multiple countries. The fact that we're dedicated to becoming the largest online retailer in the world is evident. There are distribution centers and warehouses in Europe and the USA.
Note: Orders containing multiple items will have a distinct processing time for each item.
We will carefully examine all items ordered before shipping. The majority of orders are shipped within 48 hrs. The delivery time is between 3 and 7 working days.
Returns
The stock market is always changing. It's not entirely managed by us since we are involved with multiple parties such as the factory and the storage. The actual stock can fluctuate at any time. Be aware that your order is out of stock once the order has been placed.
Our policy is for 30 days. If you don't receive your product within 30 days, we are not able to issue a refund or an exchange.
In order for your item to be eligible for return, it must be unopened and in the same condition as when you received it. The item must be returned in its original packaging.
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