Romi 32U4 Control Board

  • R598.00 (price excl. VAT)


Romi 32U4 Control Board

The Romi 32U4 Control Board is designed to be assembled with a Romi chassis to create a capable integrated robot platform that can easily be programmed and customized. Like our A-Star 32U4 programmable controllers, the Romi 32U4 Control Board is built around a USB-enabled Atmel ATmega32U4 AVR microcontroller, and it ships preloaded with an Arduino-compatible bootloader. The control board features two H-bridge motor drivers and is designed to connect to a Romi Encoder Pair Kit (available separately) to allow closed-loop motor control. It also includes a powerful 5 V switching step-down regulator that can supply up to 2 A continuously, along with a versatile power switching and distribution circuit. A 3-axis accelerometer and gyro enable a Romi 32U4 robot to make inertial measurements, estimate its orientation, and detect external forces. Three on-board pushbuttons offer a convenient interface for user input, while indicator LEDs, a buzzer, and a connector for an optional LCD allow the robot to provide feedback.

The Romi 32U4 Control Board can be used either as a standalone control solution or as a base for a more powerful Raspberry Pi controller. Its on-board connector and mounting holes allow a compatible Raspberry Pi (Model B+, Model A+, Pi 2 Model B, or Pi 3 Model B) to plug directly into the control board. Integrated level shifters make it easy to set up I²C communication and interface other signals between the two controllers, and the control board automatically supplies 5 V power to an attached Raspberry Pi. In this setup, the Raspberry Pi can handle the high-level robot control while relying on the Romi 32U4 Control Board for low-level tasks, like running motors, reading encoders, and interfacing with other analog or timing-sensitive devices.

Quick Specs

  • Size: 4.4″ × 3.3″ × 0.38″
  • Weight: 35g
  • Current rating: 5A
  • Processor: ATmega32U4 @ 16 MHz
  • RAM size: 2560 bytes
  • Program memory size: 32 Kbytes
  • Motor driver: DRV8838
  • Motor channels: 2
  • Minimum operating voltage: 2.5 V
  • Maximum operating voltage: 10.8 V
  • Continuous output current per channel: 1.8 A
  • Logic voltage: 5 V
  • Reverse voltage protection?: Y
  • External programmer required?: N

Resources

Shipping List

  • The Romi 32U4 Control Board ships with all of its surface-mount components populated, and it includes a number of through-hole parts and mounting hardware, as shown in the picture above. Note that assembly (including soldering) is required; please see the user’s guide for assembly instructions.

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