A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge

Pololu item #: 3117 11 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 32.95
10 29.66
50 26.36


backorders allowed

This programmable module combines with a Raspberry Pi to serve as the control center of a small robot or electronics project. Its ATmega32U4 AVR microcontroller comes preloaded with an Arduino-compatible bootloader, and the board includes dual motor drivers that can deliver 1.8 A per channel to two brushed DC motors. An efficient voltage regulator (2.7 V to 11 V input) and level shifters enable it to power and communicate with a Raspberry Pi. This version (item #3117) is assembled with selected through-hole connectors and components installed for use as a Raspberry Pi add-on.

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

Documentation and other information

Pololu A-Star 32U4 Robot Controller User’s Guide (Printable PDF)

User’s manual for the Pololu A-Star 32U4 Robot Controller with Raspberry Pi Bridge.


File downloads

Pololu A-Star 32U4 drivers for Windows (version 1.3.0.0) (7k zip)
This download contains the Windows drivers for the A-Star 32U4 and the rest of our 32U4 family of boards.
Pinout and power distribution diagrams of the A-Star 32U4 Robot Controller with Raspberry Pi Bridge (8MB pdf)
Printable pinout and power distribution diagrams of the A-Star 32U4 Robot Controller with Raspberry Pi Bridge.
Schematic diagram of the A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (382k pdf)
Printable schematic for the A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge.
Dimension diagram of the A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (2MB pdf)
3D model of the A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (23MB step)
Drill guide for the A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (188k dxf)
This DXF drawing shows the locations of all of the board’s holes.
Texas Instruments DRV8837/DRV8838 motor driver datasheet (1MB pdf)

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Thin (2mm) USB Cable A to Micro-B, 6 ft, Low/Full-Speed Only
USB Cable A to Micro-B, 6 ft
Wall Power Adapter: 5VDC, 1A, 5.5×2.1mm Barrel Jack, Center-Positive
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Raspberry Pi 3 Model B+
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Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Side Entry (4-Pack)
DC Power Adapter Barrel Jack
9mm Electromagnetic Buzzer: 30Ω, 3-7V, Side Opening
9mm Electromagnetic Buzzer: 40Ω, 4-6V, Top Opening
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black
0.100" (2.54 mm) Shorting Block: Blue, Top Closed
Aluminum Standoff for Raspberry Pi: 11mm Length, 6mm M2.5 Thread, M-F (4-Pack)
Stackable 0.100″ Female Header: 2x20-Pin, Straight
0.100" (2.54 mm) Female Header: 2x20-Pin, Straight
Aluminum Standoff for Raspberry Pi: 18.6mm Length, 6mm M2.5 Thread, M-F (4-Pack)
Stackable 0.100″ Female Header with Extra 0.3″ Spacer: 2x20-Pin, Straight
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Machine Hex Nut: M2.5 (25-pack)
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