MAX7219 8x8 Dot Matrix LED Display Module
MAX7219 8*8 Dot Matrix LED Display Module Digital Tube Micro controller Control Board For Arduino
MAX7219 8*8 Dot Matrix LED Display Module Digital Tube Micro controller Control Board For Arduino
he MAX7219 is an integrated serial input / output common cathode display driver. It is connected to a microprocessor and an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. It includes an on-chip B-type BCD encoder, multi-channel scanning loop, segment word driver, and an 8 * 8 static RAM for storing each data. only
an external register is used to set the segment current of each LED. A convenient four-wire serial interface can be connected to all general-purpose microprocessors. Each data can be addressed without updating all displays during update. MAX721 9 also allows users to choose whether to encode or not to encode each data.
The entire device includes a 150uA low-power shutdown mode, analog and digital brightness control, a scan limit register that allows users to display 1-8 bits of data, and a detection mode that allows all LEDs to emit light.
Only 3 IO ports are needed to drive 1 dot matrix, No flashing when dot matrix display, Support cascading.
Product Parameters:
1. A single module can drive an 8 * 8 common negative dot matrix
2. Module working voltage: 5 V
3. Module with input and output interface, support multiple modules cascade
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