namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 686
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Post by namke on Jul 26, 2020 17:11:28 GMT
I am continuing to play with ATTiny85 chips and just programmed this device — it is a reconstruction of the Digisound-80 'VCDO' module (See this page for more information including original build instructions and schematic). I'm wondering whether there would be interest in pre-programmed chips like this (in much the same way as 'Electric Druid' has for sale)? I have some enhancements that I'm going to play with, so there may well be some further iterations in the future. I made a datasheet with a bit more detail: ds80_vcdo.pdf (465.42 KB) Happy to answer questions! Attachments:
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Post by admin on Jul 27, 2020 1:06:46 GMT
Could these be used on the BrAEDboard module? Or used in a project with the DIY module? If you could provide a guide together with these chips then that would be an awesome addition to the AE Modular system.
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Lugia
Wiki Editors
Ridiculously busy...ish.
Posts: 556 
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Post by Lugia on Jul 27, 2020 1:31:07 GMT
Digisound VCDO? Lemme tell you...as someone who has a Digisound 80 and, yep, one of those modules, they're quite cool. The wavetable set I have on mine is the factory chipset, but I know there were ways back in the day to "blow" new wavetables onto a suitable EEPROM.
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 686
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Post by namke on Jul 27, 2020 8:29:04 GMT
Could these be used on the BrAEDboard module? Or used in a project with the DIY module? If you could provide a guide together with these chips then that would be an awesome addition to the AE Modular system. Yes, it would fit quite nicely on the braedboard module. The complexity comes when trying to tune it, adding offset to the frequency etc. but that would be in the analogue domain, usually using an op-amp DC mixer. I’ll rough out a breadboard layout (or just photograph mine!) |
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 686
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Post by namke on Jul 27, 2020 8:31:27 GMT
Digisound VCDO? Lemme tell you...as someone who has a Digisound 80 and, yep, one of those modules, they're quite cool. The wavetable set I have on mine is the factory chipset, but I know there were ways back in the day to "blow" new wavetables onto a suitable EEPROM. Nice! I had a loan of a Digisound-80 system for about 20 years, but it didn’t have many modules. The chip has space for probably another 8 banks of wavetables, the problem is finding useful ones. I have pondered extracting waves from the PPG systems for example, but their ROMs are a little more complex. |
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Post by rodney on Jul 28, 2020 19:05:25 GMT
I've been meaning to make a few musical christmas cards with ATTiny85 inside, playing demented bytebeat carols...
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Post by rodney on Jul 28, 2020 19:11:04 GMT
You can just use an arduino to flash firmware across to them, but I had fantasies about sitting in a cafe and doing it. In reality, I'd probably have some breadboard happening too though. ... and to just chill in a cafe with a laptop is just a cruel memory and makes me seriously think of emigrating to New Zealand.
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paul23
New Member
only one module space left
Posts: 39
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Post by paul23 on Jul 29, 2020 6:58:33 GMT
Yes, I'd definitely be interested in this. Whilst I love clean sounding oscillators, I do like some grit and dirt in the mix.
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 686
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Post by namke on Aug 6, 2020 20:31:42 GMT
Could these be used on the BrAEDboard module? Or used in a project with the DIY module? If you could provide a guide together with these chips then that would be an awesome addition to the AE Modular system. Yes, it would fit quite nicely on the braedboard module. The complexity comes when trying to tune it, adding offset to the frequency etc. but that would be in the analogue domain, usually using an op-amp DC mixer. I’ll rough out a breadboard layout (or just photograph mine!) So, I've now ordered a BrAEdboard module, so hopefully I can come up with some circuits that will be applicable soon  |
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