I have ordered some 6n137 optocouplers, so they will take a few days to arrive and I will then test the circuit for the midi in and out you drew. I don’t have a oscilloscope so I can’t test the wave form. But I’m sure it will work, I will test the 6n137 optocoupler anyway. As long as the messages are sent it’s all good. Because the leds are controlled by midi using scripts in a program. The neo pixel and the led strip are over to the left hand side of my project so they will most likely be together. So I could probably use just a single capacitor, I will have to have a look at maybe using a schottky diode. Thank you for updating the sketch, how can I move on now to a pcb. I really want to progress to pcb, I’ve never made one before so it’s all new to me.
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