DIY LED Matrix Kit SMD Dot Matrix Advertising Screen Kit Soldering Practice PCB Pre-Programmed Microcontroller Red Display

Specifications: Power Supply Voltage: DC 4~5V Display Color: Red LED Dimensions: 64 LEDs: 60mm x 49mm 256 LEDs: 96mm x 85mm Features: 1. Innovative Circuit Design for Beginners: The kit is engineered with a unique circuit layout, making it ideal for entry-level soldering practice and hands-on electronics learning. 2. High-Quality Double-Sided PCB: Built with fiberglass material and tin plating to allow multiple installations and removals without damaging the board. 3. Pre-Programmed Microcontroller: Includes a microcontroller with pre-burned firmware, eliminating the need for programming knowledge and making it class-ready for teaching or competitions. 4. Compact Display Options: Choose between two configurations—64 LEDs or 256 LEDs—to display clear text and intricate patterns with row-column scanning. 5. Comprehensive DIY Components: Comes with complete surface-mount component sets, enabling users to improve their soldering skills and deepen their understanding of electronic assembly. Package Included: 64 LEDs Kit (88 Components): 64 x Surface-Mount LEDs 8 x Row Driver Transistors 8 x Current-Limiting Resistors 2 x Serial Expansion Chips 1 x Microcontroller Chip (Pre-programmed with firmware) 1 x Surface-Mount Electrolytic Capacitor 4 x Surface-Mount High-Frequency Capacitors or 256 LEDs Kit (300 Components): 256 x Surface-Mount LEDs 16 x Row Driver Transistors 16 x Current-Limiting Resistors 4 x Serial Expansion Chips 1 x Microcontroller Chip (Pre-programmed with firmware) 1 x Surface-Mount Electrolytic Capacitor 6 x Surface-Mount High-Frequency Capacitors