Features
- A convenient four-wire serial interface can connect all the general-purpose microprocessor. Each data can be addressed in the update does not need to rewrite all of the display. MAX7219 also allows users to select each data coding or non-coding.
- 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 bit data, there is a LED light all the detection mode.
- Only three IO ports to drive eight digital tube! Digital flicker-free display! Support cascade!
- PCB plate fixed to the four corners of copper studs, which can effectively prevent a short circuit accident occurs!
- Digital tube 0.36 inches four one common cathode LED
- This module is compatible with 5V / 3.3V microcontroller (51 / AVR / STM32 .......)