i have a problem with working with the max7219cng
i am reading the beginning arduino book and i did exactly like the books says but my dot matrix led 8x8 is on all the time
i got my max7219cng from ebay (i got 2 max7219cng) and i think its fake or maybe damaged but it's possible that i don't know how to work with the max7219cng
i am quite new to electronics and arduino but i managed to get my dot matrix led 8x8 work with the 74hc595 chip even with 2 74hc595 and it works fine.
the problem is that i connect everything good (i even check with multiple sites ) but all the 64 leds are all the time on i even tried different resistor with no help i only get 2 modes everything is on or everything is off
iv'e added the code and the sketch
can anyone run this code and connect his max7219cng to dot matrix 8x8 and see if it's working
does anyone know what is my problem ?
i tried to test the max7219cng with wiring only 2 regular leds and see if i am able to control only 2 leds and i was unsuccessful(no matter what i did both of them were power on
i am pretty frustrated and need your help
thank you very very much