MAX7219 Dot Matrix Module DIY Kit SCM Control ModuleSold By Universbuy
Descriptions: The MAX7219 is an integrated serial input / output common-cathode display driver that connects a microprocessor with an 8-digit 7-segment digital LED display or a bar graph display o...Read More…
The MAX7219 is an integrated serial input / output common-cathode display driver that connects a microprocessor with an 8-digit 7-segment digital LED display or a bar graph display or 64 independent LEDs. Which includes an on-chip B-type BCD encoder, multi-scan circuit, segment word drive, but also has a 8 * 8 static RAM used to store each data. Only one external register is used to set the segment current for each LED. A convenient four-wire serial interface can be connected to all common microprocessors. Each data can be addressed at the time of updating without having to rewrite all the displays. The MAX7219 also allows the user to select or not code for each data. The entire device contains a 150μA low power shutdown mode, analog and digital brightness control, a scan limit register allows the user to display 1-8 bits of data, and a test mode for all LEDs to emit light. Only need 3 IO port can drive a dot matrix! Dot matrix display without flicker! Support cascade!
These are the parts, need to be soldered.
Take 51 MCU as an example:
Package included :
1 x MAX7219 Dot Matrix Module
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