R4 and R5 have equal values. For both LEDs the forward voltage is 2V and the forward current is 30mA.
I know how to calculate the correct resistor for a single LED. However in this case I am using a voltage divider to create a 2.5V line so that the bi-color LED can show red or green when LOGIC is 0V or 5V. I am confused as to how to calculate the correct values for the two resisters.
I would appreciate a formula explaining how, and an explanation as to why it is that way.