Microcontroller MAX7219 dot matrix module control Display DIY KIT

product description Package Includes: 10x MAX7219 Dot Matrix Module Arduino Microcontroller Module Control Display DIY KITs Single module can drive 8 × 8 dot matrix common cathode module Operating voltage: 5V Module dimensions: 3.2 cm long, 3.2 cm wide and 1.3 cm high, with four screw holes, 3 mm in diameter Module with input and output interface, support for cascading multiple modules Wiring instructions: When the control of a single module, only the input port to receive a CPU When more than 3 modules cascade output input termination CPU,