Interfacing MAX7219 LED Dot Matrix Display with Arduino.

PAROLA_HW
GENERIC_HW
ICSTATION_HW
FC16_HW

1 x 5 Header
VCC – Connect to 5V. Connecting direct to power supply rather than from MCU is recommended.
GND – Connect to system ground. This ground needs to be in common with the MCU
DIN – Connect to any digital pin on MCU.
CS / LOAD – Connect to any digital pin on MCU
CLK – Connect to any digital pin on MCU.

text code:
https://drive.google.com/file/d/1dTYt...

hardware code:
https://drive.google.com/file/d/1E7dM...

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