For my midi controller, I am currently using a "soft" midi thru where the microcontroller accepts midi input and then re-transmits it out to midi out. I realized that this is not feasible for midi signals such as midi clock as there will be a small time lag. How do i hardwire the midi in to midi out so that all incoming signals are transmitted directly, and yet still have the midi in to the rX pin?
My circuit is similar to this:
Is it possible to attach a 220r resister from the microcontroller serial input and connect it to the midi out?