Hello I have to create a mutliplexed 7 segment led display and right now I am completely lost on the values of which I should use for my resistors. Please teach me how I can do so.
My current schematics is as shown in the attached picture. I used a latch to control which LED to be lighted up, then a BJT to pull the voltage up.
What values should I use for R1-8 and what should I use for R9-16?
I do not have any information of my 7 segment LED except for the fact that it is a common anode and its pin configuration.
Also, I noticed there were 2 +5V pins on the 7 segment LED itself. Does that mean I have to connect both pins or do I choose one?
Please help. Thank you very much!
My current schematics is as shown in the attached picture. I used a latch to control which LED to be lighted up, then a BJT to pull the voltage up.
What values should I use for R1-8 and what should I use for R9-16?
I do not have any information of my 7 segment LED except for the fact that it is a common anode and its pin configuration.
Also, I noticed there were 2 +5V pins on the 7 segment LED itself. Does that mean I have to connect both pins or do I choose one?
Please help. Thank you very much!
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