BiBoard is an ESP32-based robot microcontroller board developed by Petoi. With a high-performance processor, larger memory and storage, and wireless connections, it is mainly designed for developers and engineers working on multi-degree-of-freedom (Multi-joint) robots with up to 12 servos. An audio function is also included. Features Drive 12 PWM servos An IMU (Inertial Measurement Unit) is used for detecting body status (orientation and acceleration) to balance Infrared remote controller (only on the V0 board) 4 Grove sockets for external modules. USB Type-C port for uploading firmware and serial communication. 64Kbit I2C EEPROM (optional on the V1 board) DAC and audio application. Built-in connectivity support Serial Bluetooth WiFi Compatible with Petoi open source quadruped robotics kits, such as robot dog Bittle X and robot cat Nybble Q Raspberry Pi support The V1 board provides a 5-pin socket for mounting Raspberry Pi directly. For the V0 board, you must use wires or adapters to mount the Raspberry Pi on the BiBoard. The Pi allows robotics kits such as Bittle to analyze more complex sensory data, connect to the Internet, and make decisions by itself. The source code is open-source on GitHub and has a detailed user manual. Example application Petoi's bionic robot dog Bittle fully utilized BiBoard to coordinate 8 degree-of-freedom(DOF) sophisticated motions. Bittle walks over an 8.5cm(3.35 inch) gap. More details from the tutorial. Specifications Features BiBoard V0 BiBoard V1 Structure Stacked Single board Size 65mm x 56mm x 18 mm 65mm x 56mm x 15mm CPU 16MB ESP32 4MB ESP32 mini PWM servo sockets 12x PWM. Pin 2 cannot read feedback 12x PWM. pin 27 shared with LED Working voltage USB or 7.4V battery IMU (Inertia Measurement Unit) MPU6050 Default: ICM42670 Optional: MPU6050 Constants storage I2C EEPROM Default: Onboard flashOptional: I2C EEPROM Fuse cutoff current 3A 5A USB converter CP2102 CH343 Programmable LED / 1x PWM LED shared with one servo pin Raspberry Pi port It has the pinouts, but doesn't have a dedicated socket for the Pi. Not recommended for Raspberry Pi. It has a 5-pin socket to attach the Pi. It can power the Pi and communicate with it via the serial port. Support Raspberry Pi 3 A+, 3B, 4, 5. Touch pad socket / On top Infrared receiver On top / UART2 Dial switch On an extension hat / Voice command module On an extension hat On top Speaker On the extension hat On bottom Four Grove Socketswith two pins in each socket On extension hat:2x double Analog input1x I2C1x UART2 shared with voice module On top:2x double Analog input1x I2C1x independent UART2 BiBoard V1 has the voice command module built into the board Please see the documentation for more details. BiBoard V0 with extension hat and voice command module See the documentation for more details. Discount for existing customers upgrading If you are an existing customer with older generations of Bittle, Nybble running on NyBoard or BiBoard V0, and want to upgrade to use BiBoard V1, please contact us for a special upgrade discount.
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