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A-Star 32U4 Robot Controller LV with Raspberry Pi Bridge
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.
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: | 23 g1 |
General specifications
| Processor: | ATmega32U4 @ 16 MHz |
|---|---|
| RAM size: | 2560 bytes |
| Program memory size: | 32 Kbytes2 |
| Motor driver: | DRV8838 |
| Motor channels: | 2 |
| User I/O lines: | 263 |
| 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 A4 |
| 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
- Without included mounting hardware.
- 2
- 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.
- 3
- Some I/O lines are used by on-board hardware.
- 4
- 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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