Max7219 Dot Matrix Module 4 in 1


New product

1. A single module can drive a total of 8 * 8 dot matrix overcast
2. Working voltage: 5V
3.  Size: *12.8 cm*3.2 cm *1.3 cm (L*W*H)
4. With 64 fixing screw holes, diameter 3mm
5. module with input and output interfaces, support for cascading multiple modules

More details

LKR 1,190

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More info

- Integrated serial input/output common cathode display driver, connects the microprocessor with an 8-digit 7-segment digital LED display, or it can be connected to a bar graph display or 64 independent LEDs.

- Includes an on-chip B-type BCD encoder, multi-scan circuit, segment word drive, but also a 8x8 static RAM used to store each data, only one external register is used to set the segment current for each LED.

- Four-wire serial interface can be connected to all common microprocessors, and each data can be addressed at the time of updating without having to rewrite all the displays.

- Allows to select or not code for each data, 150μA low power shutdown mode: analog and digital brightness control, a scan limit register allows to display 1-8 bits data, and test mode: for all LEDs to emit light.

- To drive a dot matrix just needs three IO, the dot matrix displays without flicker, support cascade.

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