Messages

1

Atmegatron / Re: Any more Atmegatrons?

« on: February 12, 2019, 02:00:21 PM »

Hi - I'm still working away on ATX.  Apologies for going silent, there's just so much to do.  To confirm the new ATX range will consist of:
Atmegatron II - 2 Atmegatrons + new powerful control interface
Atmultitron - 8 Atmegatrons, analogue filter, analogue VCA + control interface + keybed + joystick
Separate Eurorack modules of Atmegatron, Filter, VCA, Controller (required for control of other modules), possibly joystick/keybed interface and other IO modules.

The idea of ATX is that it's expandable, so 1 controller can control upto 8 synths and 8 fx cards (filters, VCAs, fx etc).

Let me know if you want any more info (apart from price, still can't do that yet I'm afraid!)

2

miniAtmegatron / Re: how do i install the software v3.1? and how can i tell if i have a 2PCB or 3PC?

« on: February 12, 2019, 01:53:20 PM »

Hi,
Upload instructions are here: https://soulsbysynths.com/miniatmegatron-downloads/
or video here: https://youtu.be/07cy_KiLm8k

Lemur and Ctrlr are just methods of controlling the miniAtmegatron via CC messages.  They aren't VSTs, but you can control it from your DAW over USB MIDI.  All parameters are available on CCs.

The main change was the RGB LED, which has different pin-outs. You'll see issue2 or 3 written on the PCB.  If the LED colours look wrong, just try the other one. It won't damage the board.

3

Oscitron Hardware Technical Support / Re: accidentally uploaded a blank

« on: February 12, 2019, 01:47:57 PM »

Just upload a .hex via EasyUploader and it'll all work fine. Details here: https://soulsbysynths.com/oscitron-downloads/

4

Software technical support / Re: Playing duophonically with controller keyboard

« on: October 03, 2018, 03:00:56 PM »

Just had a look at the code - looks like it is only monophonic.  I wrote it so long ago I'd forgotten how it worked!  I'm pretty sure the first poly code i wrote was Odytron (which came after Duotron).  I guess it might be possible to update it.  If I transfer it to the new Atx system, I'll try and do a new version for the Atmegatron too.

5

miniAtmegatron / Re: SparkFun Pro Micro

« on: October 02, 2018, 06:45:05 PM »

Hi - that range of Atmegas wouldn't be compatible without significant changes to the code and schematic.  Think it would be possible though, with the necessary changes. 

6

miniAtmegatron / Re: Build problems. Fried board?

« on: July 05, 2018, 10:49:57 AM »

Hi - what temperature did you have your soldering iron on?  As long as it wasn't on mega-hot mode, I'm sure the board will be fine.
R.e. the capacitor you replaced:  if the metal pads have been totally destroyed, you will need to use bits of wire to attach the cap to the traces.  Which cap was it that you replaced?
R.e. the LEDs.  Nearly all these pins are bridged!  I recommend buying some desoldering braid to remove the excess solder. There must not be any contact between the pads.
Also, there's no header in CONN4!  Don't forget to put this in - it won't work without it!

7

Atmegatron/Odytron Hardware technical support / Re: Atmegatron: Potentiometer (distortion)

« on: July 04, 2018, 06:09:10 PM »

1) Yes these 3 are definitely logarithmic.  The others are linear
2) The codes are explained in the datasheet: https://www.mouser.co.uk/datasheet/2/54/tv09-777818.pdf
The 4 in "4225F" means that there is no sleeve to the pot, so it will wobble (some early units actually have this type, because I could not get stock of the other type)
The first 2 in "4225F"  means that there is a centre detent.  There isn't any need for a centre detent with any of the pots.  You use a detent when middle = 0 (but the Atmegatron only uses anti-clockwise = 0).
So technically and electrically PTV09A-4225F-B102 is fine, by you may find the differences annoying!

PTV09A-1025F-A203 will not fit the logarithmic pot holes.  They must be "dual gang" with 6 pins.

8

Atmegatron/Odytron Hardware technical support / Re: Atmegatron: Potentiometer (distortion)

« on: July 03, 2018, 08:59:20 AM »

oh - no 3 of them are different.  You'll see they are bigger.  Here's the part:  Alps RK12L12C0A0E

The bass boost pot is 1k:  Bourns PTV09A-1025F-B102
Rest are 10 k.

9

Atmegatron/Odytron Hardware technical support / Re: Atmegatron: Potentiometer (distortion)

« on: June 29, 2018, 09:09:46 AM »

Hi,
The spec is:  10k, linear, 6mm diameter, D shape, 25mm height. 
I think Bourns and Alps both make one. 
Possibly worth a bit of contact cleaner first?

10

Everything else / Re: EasyUpLoader

« on: June 11, 2018, 11:44:09 AM »

You're using an Atmega328P ?  It should work fine for that, but not for any other Atmega.  This is because I have hard-coded the Atmega328P into the AVRDUDE command in the software.
Also, you should have a cap (think 0.1uF) in series with the reset line in your schematic.  Do you have this?

11

Oscitron Hardware Technical Support / Re: Uni-Five Installation

« on: May 07, 2018, 07:15:38 PM »

Those are up on the downloads page now.

12

Everything else / Re: Midi controllers

« on: May 07, 2018, 01:14:03 PM »

Hmm, well I was actually next to DIN Sync at Superbooth and he has a 101 DIY project that looks amazing! https://youtu.be/wB7yyMU_h24
Ginko have the new sampler slicer module if you're into modular: https://www.youtube.com/watch?v=gl-eEHc66Y8
Not too sure about 8-bit options at the mo.  Most seem to be preassembled.

13

Oscitron Hardware Technical Support / Re: Uni-Five Installation

« on: May 07, 2018, 01:06:12 PM »

Yup, red stripe down on everything I make.

14

Software technical support / Re: Problems uploading software and lights out

« on: April 05, 2018, 09:11:12 AM »

Excellent, glad you got it working. Sometimes the computer needs a restart after installing the FTDI drivers for it to work properly.

15

Everything else / Re: Quick test

« on: March 30, 2018, 01:37:24 AM »

It worked!  Let me know if you have any other issues.  Will delete in a couple of days if all's working now.