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Hi SunnySkyguy, thank you for your reply.
I didn't put the resistors in order to simplify the circuit (but I know that I should -- and I'll -- use them). I have no choice in relation of CC or CA, I have four common cathode displays and I should use them. Each segment of display has five...
Hello Klaus.
I'm building a digital signboard. So I have four 7-segment displays. I'll do the multiplexing using a ULN2003. My problem is to the interface between the PIC and the display. The PIC's output is 5 V, but I need a 9 V output to turn on the segment. I need to convert the PIC's output...
Hello,
I'm facing a problem here. I have four 7-segment displays, 4 inches each. There are common cathode.
I'm trying to connect them in a PIC18F4550, but I'm failing in build a interface between the microcontroller and the displays (because the voltage level).
Can someone help me?
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