Used a MAX7219 clone to implement an electronic ticker with four dot matrix elements (8×8). Data is send out from a pi zero.

Connection between MAX7219 module and pi zero:
Vcc – Vbus ( pin 40 )
GND – GND ( pin 38 )
DIN – GP3 SPI0 TX (pin 5)
CS – GP5 SPI0 CSn (pin 7)
CLK – GP2 SPI0 SCK ( pin 4 )

How to save file on pi zero?
Hold press the bootsel button near LED and connect directly through usb cable with the pc. Then pi zero should appear in the windows work station. Release the bootsel button if the pi zero drive appears.