A303-College Mechanical Teaching Equipment University Hardware Programmable Robot Arm. Comprehensive Vision Sorting System: Integrates robot vision, PLC, sensors, and conveyor for automated nut sorting and identification. Open Development Protocol: Supports serial port protocol, OpenMV, and USB cameras for secondary development and visual interaction. Multi-Axis Motion Control: Features 3-axis manipulator with point-to-point, straight line, and arc walking capabilities. Advanced Visual Recognition: OpenMV module supports color discrimination, AprilTag tracking, template matching, and ranging. Modular Training Platform: 1700x1200x750mm aluminum profile frame with adjustable feet, brake rollers, and safety acrylic doors. High-Precision PLC Control: ZK3U PLC with 16-channel inputs, high-speed pulse output, and RS232/RS485 communication. Interactive Touchscreen Interface: 7-inch industrial touch screen for real-time data display and parameter adjustment. Complete Teaching Curriculum: Includes 25+ experiments covering motion control, I/O communication, and visual recognition.