REES52 MAX7219 Red LED Dot Matrix Educational Electronic Hobby Kit

Module Parameters: 1.A Single Module Can Drive An 8 * 8 Common Cathode Lattice 2.Module Operating Voltage: 5V. 3.Module Size: 5 Cm Long X 3.2 Cm Wide X 1.5 Cm High 4.With Four Screws Hole, Aperture 3Mm, By Using Our M3 Tongzhu Fixed 5.Module With Input And Output Interfaces, Supports Multiple Modules Cascade Wiring Instructions: 1.The Module Left As An Input Port To The Output Port On The Right. 2.The Control Of A Single Module, Simply Input Port To The Cpu 3.Multiple Modules Cascade Input Termination Cpu, 2 Output Termination Module, A Module Of The Input Of The Input Terminal, The Output Terminal Of The First Two Modules Of The First Three Modules, And So On ... 51 MCU, For Example: VCC ? 5V Gnd ? Gnd Din ? P22 CS ? P21 Clk ? P20