A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (SMT Components Only)

Pololu item #: 3116 25 in stock
Brand: Pololu
Status: Active and Preferred 
This item could qualify for free shipping Free shipping in USA over $60 

Price break Unit price (US$)
1 24.95
10 22.46
50 19.96


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This programmable module is designed to be the core of a small robot, either as an auxiliary controller atop a Raspberry Pi base or as a complete control solution on its own. Its ATmega32U4 AVR microcontroller comes preloaded with an Arduino-compatible bootloader. On-board hardware includes dual motor drivers that can deliver 1.8 A per channel and an efficient voltage regulator that allows the controller to work with a 2.7 V to 11 V input voltage, along with level shifters that enable it to interface with a Raspberry Pi. This version (item #3116) does not include any through-hole components or connectors, allowing for customized assembly or standalone use.

 Description Specs (19) Pictures (12) Resources (22) FAQs (0) On the blog (3) 

Dimensions

Size: 65 mm × 56 mm
Weight: 14 g

General specifications

Processor: ATmega32U4 @ 16 MHz
RAM size: 2560 bytes
Program memory size: 32 Kbytes1
Motor driver: DRV8838
Motor channels: 2
User I/O lines: 262
Input voltage range: 2.7 V to 11 V
Minimum operating voltage: 2.7 V
Maximum operating voltage: 11 V
Maximum output current: 1.5 A3
Continuous output current per channel: 1.8 A
Peak output current per channel: 1.8 A
Logic voltage: 5 V
Reverse voltage protection?: Y
External programmer required?: N

Identifying markings

PCB dev codes: ac04b
Other PCB markings: 0J8907

Notes:

1
Note that 4 KB of the MCU's 32 KB of flash memory is used by the pre-installed USB bootloader. All 32 KB is available when programming via the ISP header rather than the bootloader.
2
Some I/O lines are used by on-board hardware.
3
Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology. See product documentation and performance graphs for details.

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