Model number: 4 x 4 matrix Product overview A compact 4 x 4 matrix module designed for matrix input and scanning applications. The 4 x 4 layout provides 16 addressable points while minimizing the number of input lines required, making it suitable for embedded systems, control panels, and prototype projects that need a reliable multikey interface. Key benefits Efficient input mapping: 16 inputs using only 8 lines through row and column scanning reduces wiring and I/O requirements. Versatile compatibility: Works with microcontrollers and control systems that support matrix scanning or multiplexed input reading. Space saving: 4 by 4 arrangement conserves PCB area compared with individual point wiring. Practical for prototyping and production: Simplifies circuit design and speeds integration when adding multikey input to devices. Important attributes Function: Matrix input arrangement for detecting multiple key or switch states via row and column scanning. Model number: 4 x 4 matrix. Layout: Four rows and four columns for a total of 16 addressable positions. Compatibility: Suitable for systems that implement matrix scanning, multiplexing, or driver ICs for matrix input. Performance: Reduces the number of I/O pins required and supports reliable detection of multiple active inputs when used with appropriate scanning logic. Construction: Designed for integration on control panels or PCBs using standard electrical connections and common component mounting practices. Use scenarios Access panels and keypads: Implement a compact numerical or function keypad for door controllers, vending units, or kiosk interfaces. Embedded device controls: Add menu navigation or multiple function buttons to microcontroller projects and development boards. Prototyping and testing: Rapidly prototype input layouts for product development where multiple discrete inputs are required without extensive wiring. Ordering and information Defective items must be reported and returned within the specified period and returned in good condition. When reporting a defect, include your number and a clear description of the defect so a replacement can be issued within the period. Please pay for orders promptly after submission so orders can be prepared and dispatched without delay. Note This listing describes the model number 4 x 4 matrix and its intended function and compatibility. Please confirm your system supports matrix scanning before integrating the module.