MegaCommand // MiniCommand Resurrection // MCLive

Is it possible to use this with any other Elektron machines? I have an old MiniCommand and Octatrack, A4 and Analog Rytm.

Currently, MCL has native support for A4. Other machines will work with general MIDI mode.

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I have the original MiniCommand/software. I can’t even get it to communicate with either of the machines, or my Mac OSX Catalina. I have set the A4 to send and receive midi, nothing. Any advice?

I don’t have much experience with the original MiniCommand, but I guess you’ll have to load up your own “sketches” (programs).

MegaCommandLive was originally developed as a MC sketch, and later evolved into a fully-fledged firmware on itself.

Do you have a few of these sketches somewhere? Without a sketch it does nothing, not even send/receive midi. You can plug it in to your computer and fire up a midi monitor to see if it’s the case.

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@JustinValer has got the original MiniCommand to work with MCL at some point during the development, so you may also have a try with MCL.

Hm, I have tried. But can’t get contact with MiniCommand with my Mac. Maybe I do something wrong, Im kinda new to this.

Then perhaps the MiniCommand is “empty”.
Connect via USB, and get an ArduinoIDE to proceed :slight_smile:

There are no USB port on the MiniCommand. I have connected it via Midi Interface, but it doesn’t appear in the HexUploader!

Unfortunately MCL won’t work on the MiniCommand. The MiniCommand processor ATMEGA64 only has 64KB of flash memory.

MCL is over 200KB in size.

MIDICtrl20 has been back ported to work with the original Minicommand hardware, but it is currently untested. In theory you could run a cutdown version of MCL. I attempted to do something like this but couldn’t get the binary below 128KB.

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If someone has spare time and coding experience, we could work on getting a super light version of MCL running. That would only include the chromatic page, and maybe 1 or two extra pages.

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MegaCommand Live 2.61 released!! :rocket:

MCL version 2.61 requires that you upgrade your Machinedrum OS to version 1.71.

Changes:

  • Arpeggiator added to Chromatic Page. Accessible from Track Select Menu.
  • MIDI CC can be used to control MD Parameters across poly tracks.
    CC 16 to 40 controls MD Params 1 to 24.
  • Added many more scales to Chromatic Page
  • Chromatic Page now indicates when in POLY mode.
  • Added support for TRX-S2
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Still available one? :slight_smile:

Originally posted in the wrong thread, I’ve a question regarding sourcing the components to build a megacommand:

I’m in the process of sourcing the components but there are a couple of ics and encoders I can’t seem to find in stock anywhere. My electronics knowledge is not adequate enough to tell if the possible alternative parts that are available would work. Would anyone be willing to point me in the right direction?

encoders could be substitute with a different shaft length, or choose a dented encoder instead of smooth.

Dented encoder, same shaft length

(dented encoder, clicks when you turn it)

https://au.mouser.com/ProductDetail/Bourns/PEC11R-4215F-S0024?qs=%2Fha2pyFaduidMAYXvh4P%2BIL1kWpVbHQo5zifEL03PQA6gwsmKmQN0B3y6qtGjcp7

What other components are you missing ?

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Cheers!

There are 2 ICs I can’t find using the part numbers supplied on the bom:
The 74LS165N and was wondering if this would be a suitable replacement:
https://nl.mouser.com/ProductDetail/595-SN74LS165AN

And the 74HC573N and was able to find this:
https://www.distrelec.nl/en/octal-latch-type-pdip-20-28mhz-texas-instruments-sn74hc573an/p/30023052?q=&pos=10&origPos=10&origPageSize=10&track=true

Thank you in advance, I tried to brush up on my knowledge first but figuring out replacements is too complicated for me currently and I can’t wait to start building :slight_smile:

This is the BOM for the old board.

It has the mouser part numbers I selected.

you can cross reference with the new BOM to find the component part numbers.

https://github.com/jmamma/MegaCommand_Design/blob/master/1_0_2/BOM_1_0_2a11

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All clear now, thanks!

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these are the IC substitutions i had to make:

74HC573N ----> SN74HC573AN
74LS165N ----> SN74LS165AN
HC4050 ----> CD74HC4050EE4

haven’t tested yet…2 parts away from 1st test phase

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Hey guy’s,

little problem here with SPS MK2 UW+. If i put a midi maschine on a track, then switch to step edit on my megacommand and there is no pitch control for the selected step. Other maschines got no issues. I also tried the cromatic mode and this causes a error and my megacommand shut down and show me a SD Card error:-(
Firmware is 1.71 and 2.61
Anyone with the same problem or fix possibilities?

Thx

Hey Frico,

MID machines are not supported in chromatic mode currently, that goes for pitch control on step selection. You can parameter lock them from the ParamEdit page though, this is not intuitive at the moment.

I’m not able to replicate the crash, can you private message me with more details.

Thanks,

  • Justin
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