DFR1231

DFR1231 is a robotics & power IO extender for UNIHIKER K10 / micro:bit. This is a dedicated expansion shield engineered to unlock the full creative potential of the UNIHIKER K10 AI Coding Learning Board. It functions by breaking out all of the UNIHIKER K10's onboard IO pins into a more accessible and feature-rich layout. The core design philosophy centres on providing stable, high-current power for demanding peripherals like servos and AI cameras, while simplifying connectivity through clearly labelled, multi-functional ports. Key features include four dedicated servo interfaces with an independent power supply, a specialized port for the HuskyLens AI Vision Sensor, and full compatibility with the micro:bit ecosystem. This makes the extender an ideal solution for advanced projects in STEM education, robotics, and interactive AI applications.

• Power input: DC 5V via Type-C or MicroUSB and power control: main power switch and red LED indicator
• Digital I/O ports: 19x (3.3V Logic, functions consistent with UNIHIKER K10)
• Multi-functional ports: 4x (C0-C3, 3.3V logic, for Analog/Digital/Sensors)
• Servo ports: 4x (S0-S3, 5V power from main input)
• I2C ports: 3x total (2x 3.3V, 1x 5V dedicated for HuskyLens)
• Onboard buzzer: passive buzzer on Pin P0 with an enable/disable switch
• Dimensions: 66mm x 50mm x 12mm (L x W x H) and mounting holes: 55mm spacing, 3.1mm diameter
• Stable and reliable power for robotics, simplified and versatile connectivity
• Optimized for AI vision applications, seamless cross-platform compatibility