Merge Two DIN MIDI Inputs to One DIN MIDI Output

[ForestCat]

I know there are commercial products that do this, but space is at an absolute premium on my pedalboard, and this has to be tiny, or built into an existing enclosure.

Can this be done w/ a Teensy 2.0 since it has only one serial Rx input?

Thanks.

 

[robsoles]

Cheaper, 3 h/w serial ports and a lot more processing power, much better(/easier) chance of success: https://www.pjrc.com/teensy/teensyLC.html

 

[PaulStoffregen]

Yeah, you'd do much better to use a Teensy-LC or Teensy 3.1.

 

[ForestCat]

I'm not at all opposed to using an LC or 3.1, I just wanted to try it with stuff I had on hand. Do you guys know of any example code for merging two DIN MIDI inputs? I currently use the MIDI library "Thru" function for merging one DIN input w/ the MIDI data generated by the Teensy via pots, switches, etc, and it works well. But the web seems to not have a lot in the may of Arduino-based MIDI h/w mergers...
Thanks

 

[robsoles]

Sorry, don't know of example for this; I haven't gone very far into midi at all but I am willing to think it shouldn't be that hard to manually cater second midi in and merge it into the pass-thru the same as you do local events already.

 

[PaulStoffregen]

I wouldn't waste time trying on any board with only a single hardware serial port. It's unlikely to ever work well. You really need 2 hardware serial ports.

 

[ForestCat]

Paul, I just ordered an LC & a 3.1. Can you point me toward any examples of merging MIDI data w/ two UARTs? I'm pretty green when it comes to serial i/o, especially async stuff...

I wouldn't waste time trying on any board with only a single hardware serial port. It's unlikely to ever work well. You really need 2 hardware serial ports.