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A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge (SMT Components Only)
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.
Compare all products in Robot Controllers or Raspberry Pi Expansion Boards or A-Star 32U4 Robot Controller.
| 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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