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Microcontroller: ATmega32u4 Operating voltage: 5 V Input voltage (recommendend): 7-12 V Input voltage (limitation): 6-20 V Digital I/O Pins: 20 PWM tracks: 7 Analog input channels: 12 DC current per I/O Pin: 40 mA DC current for 3.3 V Pin: 50 mA Flash memory: 32 KB (ATmega32u4) while 4 Kb can be used per bootloader SRAM: 2.5 KB (ATmega32u4) EEPROM: 1 KB (ATmega32u4) Clock speed: 16 MHz
*Single module can drive an 8 * 8 dot matrix common cathode *Module Operating voltage: 5V *Modules with input and output interfaces, support for cascading multiple modules
*On the left block to an input port, an output port on the right *When the control of a single module, simply enter the port received a CPU *When more than 3 modules cascaded output input termination CPU,the input output termination module of the first two modules of the first one, the first two modules of the termination input terminal of the three modules, and so on
*They are used in LED matrix *They are used in prineters *They are used in Computer