[sdiy] Who apart from me things the whole MIDI board needs replacing ?
neil.johnson71 at gmail.com
Thu Jan 27 13:25:05 CET 2022
On Thu, 27 Jan 2022 at 12:10, Sean Ellis via Synth-diy
<synth-diy at synth-diy.org> wrote:
> Let me rephrase: in the circuit as shown will the MCU will get a signal no matter if it's a midi cable or a gate signal on a mono cable? Just seems like it would be easy to make a dual use input.
> >> https://raw.githubusercontent.com/jakplugg/Neutron-Sound-Dust-of-Time/master/schematic.pdf
Yes.... BUT... the gate signal source must limit the current to about
5 mA just as a MIDI transmitter would (e.g. +5V and two 220R
So, you can't just feed it any old gate signal.
And some way to tell the micro that the signal on the RXD pin is
either MIDI _or_ Gate.
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