Noob. (changed) hairless? NO, SerialMIDIBridge? NO, Trying Due

[ptillisch]

Great job persisting through the challenges to a successful run of the script. That is good progress!

I'm reasonably knowledgeable about Python scripts in general, but don't have any experience at all with MIDI so I'm afraid I can't provide any assistance when it comes to those aspects of the project. But I'm confident that the other forum helpers like @Grumpy_Mike who are knowledgeable in this subject matter will be able to help you out.

[Grumpy_Mike]

@kris333

I do not see GrandOrgue anywhere - that needs to be the target.

So when you get up, make sure that GrandOrgue is attached and running and try again.

[kris333]

Huge thanks for looking in!
Just up for a minute and saw this. I did. I plugged in Mega, started GrandOrgue, and then started SerialMidiBridge, but it didn't see it. Nite.

[Grumpy_Mike]

It is probably worth reading the reply in this issue I raised.
Issue 1

It might not be the same solution as mine, but it will give you the hint you need to get it going from the terminal app in windows.

[kris333]

Thanks but no help. Very different. No idea.

[toddnz]

Just a vague thought, not sure if it's relevant:

I remember a piece of software called CopperLAN, which, among other things, had some sort of virtual MIDI device, which you could use to remap other devices.

If it's still frustrating you, maybe it's worth seeing if you can get the midi data to pass through CopperLAN, or some similar software (does MidiOx offer this too?), and then on to GrandOrgue? Not an ideal system, even if it does work, but..

[sterretje]

@kris333

It is in 6x6 matrix form, where I would have preferred a "parallel" form which the number of digital pins allows in the Mega, but if it can't easily do MIDI over USB then I have no interest in it. The Due might be a possibility but the cheapest I have seen one is $40 and that is way too much for my simple purpose (experimentation), since I don't actually need it at the moment. If my present "encoder" fails, I might consider the Due. Or simply slap in my Leonardo and be done with it.

You can expand the number of digital pins on the Leonardo using

1. 74HC165 shift register (input) and 74HC595 shift register (output).
2. I2C/SPI port expanders like MCP23008/MCP23S08 (8-bit), MCP23017/MCP23S17 (16-bit), PCF8574 (8-bit) or PC8575 (16-bit).

There are also options for the analog inputs using analog multiplexers.

[kris333]

@sterretje

You can expand the number of digital pins on the Leonardo using

1. 74HC165 shift register (input) and 74HC595 shift register (output).
2. I2C/SPI port expanders like MCP23008/MCP23S08 (8-bit), MCP23017/MCP23S17 (16-bit), PCF8574 (8-bit) or PC8575 (16-bit).

There are also options for the analog inputs using analog multiplexers.

Thanks. Yes, I have heard that. I would need very basic simplistic, SPECIFIC instructions on how to do that and how to change the sketch to do that. I went looking for that but couldn't find anything. A sentence here and there but... what ic, how to actually attach it to the Leonardo, what other wired/connections it needs. etc. I only have a week or so experience with an arduino and very basic at that. I wrote that 6x6 sketch simply by slightly modifying a couple lines in someone else's code. I never could have done it myself. And it's only about 5 commands long! noob!!! People show or talk about some parts and I simply can't do anything with that. EDIT: That is a breadboard project - I would need an exact schematic. Sorry! Nite! Tomorrow!

[sterretje]

@kris333

A sentence here and there but... what ic,

I mentioned a few options. So pick one based on the suggestions and buy it. These ones would be quite simple to connect: Adafruit PCF8574 I2C GPIO Expander Breakout [STEMMA QT / Qwiic] : ID 5545 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits and Adafruit PCF8575 I2C 16 GPIO Expander Breakout [STEMMA QT / Qwiic] : ID 5611 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits.

I did not look for it but Adafruit is quite good in documenting and providing libraries.

[toddnz]

I had a play-around this evening and can confirm that I got GrandOrgue working with SerialMIDIBridge, using Arduino Uno R3 and Windows 10

1. Installed the required python packages:

   python -m pip install pyserial python-rtmidi pysimplegui
   

2. Installed loopMidi to create a virtual loopback MIDI cable, as suggested in post post #35, and at raspy135/serialmidi.

3. Opened loopMidi and created a new loopback midi port.
   

   

4. In ArduinoIDE, flashed the example midi sketch. I changed the serial baud-rate to 115200.

5. Downloaded SerialMidiBridge, and launched from command prompt:

   python ./SerialMidiBridge.py
   

6. Selected the correct COM port, baud rate, and "Serial to Midi" + "Midi to Serial devices" (the new virtual cable made in loopbackMidi). Pressed start, then debug messages showing the Arduino's midi output started to appear.

   

7. Launched GrandOrgue and configured midi. The organ software is a bit confusing.

   • Enabled sound for the lower keyboard, by selecting several circles as shown left
   • Right clicked lower keyboard
   • Pressed "Listen for event", to detect the midi input
   • Pressed OK
   

At this point I was able to hear the chromatic scale from the Uno sketch playing out my PC's speakers, through GrandOrgue.

A helpful diagnostic tool for GrandOrgue can be found in Audio/Midi > Log Midi Events

[kris333]

@Grumpy_Mike

If you want an Arduino that can produce MIDI input and output signals through a USB connector you need the Arduino Micro or Leonardo to do this.

https://tttapa.github.io/Control-Surface-doc/Doxygen/d8/d4a/md_pages_MIDI-over-USB.html
That claims the Due will. I should know in a week or so.

[Grumpy_Mike]

@kris333

That claims the Due will.

An expensive way to find out something. You still have the 3V3 problem to deal with.
And do you fully understand the difference between a Host and a Device?

[kris333]

@Grumpy_Mike

However, now the big problem here is that...

To me, the big problem is that using serial midi it takes about 1200 lines of code to do what about 5-10 lines will on say a leonardo. It's like insisting on building a house with a huge number of toothpicks versus regular lumber. it can be done but is well nigh pointless.

... simplified...

I think you all mean well, but, realistically, you really need to step back and look anew at what is currently available and USE THAT,

[kris333]

@Grumpy_Mike

An expensive way to find out something.

it would be if I paid full price for it.($25) In any case I can have fun with it for a few hours.

[kris333]

@Grumpy_Mike

And do you fully understand the difference between a Host and a Device?

Well hopefully people here are acquainted with current technology and can use it,

[PerryBebbington]

There are 2 unrelated MIDI topics running at the moment, different OPs, similar subject. By accident some of the replies to this one got posted into the other one. I've done my best to tidy up by moving the replies in the other topic that I think should be here to this one. I apologise now if I didn't get it quite right, please tell me if I missed something.

Thank you.

[kris333]

nope, my previous post actually was intended for the other thread - winkie's thread.
However, I am done with (g-m). delete thread or I will.