I cannot get a 7 segment display to light up. The display I have is the 5 digit 7 segment display and the Maxim 7219 Display driver chip.
I have wired 5digit display to the Max7219 chip as described.
I have wired the Max7219 to the Mega 2560following the instruction for Direct Connection.
I have installed 10K ohm resistor between pins 19 and 18 (R set). Grounds from Max7219 pin 4 and 9 connected to Mega 2560 Ground pin. I have tried both with a 1.8K ohm resistor and no resistor between CLK (pin 13 on max7219) and ground.
I do get some digits flashing when x-plane is loading but nothing after that. I have tried the zibo 737-800, and the default x-plane 737. I have switches working and can assign them through the configurator, and the SimVim display window reports connection to the board. This is my generated file from the configurator for the auto pilot panel (which I am trying to build)
N37 D=0 B=1,10 b=0
I have tried course, airspeed, heading, altitude, even transponder but I never get any digits showing. Do I need different parts, like the MUX board? Really want to use this system but if can't get any display them I'll have to go back to Arduino coding. Hope someone can help.