5 Pcs MAX7219 Dot Matrix Module 8x8 LED Display Modules for Arduino Raspberry Pi Microcontroller with 5Pin Wires Red
5 Pcs MAX7219 Dot Matrix Module 8x8 LED Display Modules for Arduino Raspberry Pi Microcontroller with 5Pin Wires Red
Key features
- The MAX7219 is compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs.
- Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit.
- Only one external resistor is required to set the segment current for all LEDs. A convenient 3-wire serial interface connects to all common µPs. Individual digits may be addressed and updated without rewriting the entire display.
- The MAX7219 also allow the user to select code B decoding or no-decode for each digit.
- The devices include a 150µA low-power shutdown mode, analog and digital brightness control, a scan limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on.
Description:MAX7219 is an integrated serial input / output common-cathode display drivers , which connects the microprocessor 7-segment digital LED display with 8 digits , bar graph can also be connected monitor or 64 separate LED. On type B BCD encoder includes an on-chip , multi-channel scanning loop , segment word drive, but also a 8x8 static RAM for storing each data . Only one external register is used to set the segment current for each LED.A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update does not overwrite all of the display . MAX7219 also allows the user to select each of the data code or not coded.The entire device includes a 150A low-power shutdown mode , analog and digital brightness control , a scan-limit register allows the user to 1-8 bits of data , there is an LED light so that all the detection mode.Wiring instructions:1,Module on the left as an input port, output port on the right.2,Control of a single module, simply input port to the CPU3,more modules cascade input termination module of a CPU, 2 output termination module input and output of the two modules is terminated with the input end of th
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