MegaCommand // MiniCommand Resurrection // MCLive

The Lounge Other Gear
#586

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:

#587

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

3 Likes
#588

All clear now, thanks!

1 Like
#589

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

4 Likes
#590

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

#591

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
2 Likes
#592

Hi all! Just found out about this gem and I’m amazed and excited that this exists and is even possible at all.

Would love to buy a pre-assembled Megacommand Live as I have no experience with such an assembly, and time is an asset of which I have little.

Is this possible? Can anybody help me out?

Fingers crossed

Petter

#593

Hey Petter, you can send a personal message to Justin and ask him. Maybe he has a pre assembled unit for you.

Greetz

1 Like
#594

Thanks Frico, I’ll do that :pray:

#596

I’ve just installed the oled screen but I get an error when trying to the test saying there is no oled.h library. Can I just get any old oled library and install that?

#597

You need to select the Megacommand/Midictrl core to compile the oled test.

1 Like
#598

Hi all,

is there anyone who could explain the differences between BOM_1_0_1 and BOM_1_0_2? I mean: which components should I integrate in BOM_1_0_1 in order to obtain BOM_1_0_2?

#599

BOM_1_0_2 is the latest BOM.

The old BOM was posted if you want to get the mouser part numbers for some of the components. These may be outdated.

#600

HI!
I’m looking for a PCB, do you still have some?
:upside_down_face:

#601

I still have a few. PM me your address and i’ll let you know shipping.

#603

Hello!
I’m trying to build my own megacommand, so hurry!
On mouser the ref. 3FT1D for button 1=>4 do not exist.
Isn’t it much ref. 3FTH9

I’m really excited by this project, thanks so much to share this wonderfull work!

#604

should be 642-3FTH9

1 Like
#605

Yes!

#606

you also need switch caps. 642-1D09

surprised i never updated the BOM for this.

1 Like
#607

Also the ref. R-US_0207/7 for the 220 resistor do not match on mouser.
Any idea?