Did you compile an app collection yourself? If so, be careful with the size of each app as you will run out of space fast.
Haha yes it’s definitely a hyperbole 
But I didn’t know a better word. To reply to your questions:
- checked and re-checked. it’s the correct hardware and Teensy version.
- I did check the Phazerville github for issues.
- Now that you mention it, I can re-flash it, I had also tried to re-flash it with the previous version. The flashing does seem to work, at least the updated app does not say it didn’t work. So yes, the connection does work indeed.
I’ll try again to see if maybe the Display connections got loose or something.
no no, I’m just using one of the already compiled versions from Github. I think it was o_C-phazerville-v1.7_phz-6d32547c.hex
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Any particular use cases you like to explore here? I have the related bits, but less time to experiment than I’d like. How do you use this? What do you enjoy about it?
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Can the o_c be powered by norns over usb?
xmacex
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Maybe also try a few other firmware releases?
@elovisk i think most o_Cs have the USB power traces cut on the Teensy board, so it does not fry when connected to both Eurorack power and USB power. This makes good sense for “normal”, Eurorack based use of O_c. If the board power traces are not cut (bad idea), the board itself should come up with USB power but I have serious doubts it the module works that way because the Eurorack stuff runs at different voltages. Have you done research? It seems this has been discussed in this thread a number of times too, the forum search will find the occasions for you.
@studio_fade I don’t have this scenario of bare o_C with norns over USB (as interesting as it is!) but I have a few other modules too, including crow. Making MIDI cc chaos seems like always a good idea, and norns is really good at mapping incoming MIDI cc to any of the norns parameters. I would try out that… I need to understand what this background MIDI actually allows, I learned about it only recently.
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The original O_c board needs the eurorack +/- 12V supply rails to drive its outputs. I’m not sure about smaller / later designs.
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Have you been able to use the midi functions? I picked up a O & C with Squares/Circles and I can’t get it to show up as a midi device. With the cable connected it gets power though. Sure, checked the cable. Tried switching inputs in the prefs. There are no jumpers on the back but a knob which, when pressed, makes two LEDs lit and flashing.
I know it can transmit out of the T1 jack, but the USB on the back should work anyways?
What am I missing?
LC
P.S.: turns out the 5V trace is not cut on this one. Sadly, the Teensy is hard soldered to the board so that I can’t cut it myself without soldering it apart (not for me). Will try to cut the red wire in my usb cable instead.
To follow up on my posts earlier. I did disassenble the thing and put it back together and now it works again! So I guess something did get loose when taking it out of the case the last time.
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xmacex
457
Relieved to hear you sorted it out. Merry bleeping!
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Haven’t done that yet, no. More in it for the trigger style control myself. But curious to see what could be good about that approach- definitely report back if you make it happen and have fun with it.
xmacex
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Phazerville firmware¹ release 1.8 is out yesterday. It also marks a new dovumentation site at https://firmware.phazerville.com/.
They are looking for Teensy 4 betatesters as well as a bit of cash, and work on new hardware is also progressing.
¹ which continues the Hemisphere, Benisphere legacy
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DoS
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Which reminds me that I should get hold of some Teensy 4s to upgrade my uO_Cs at some point. Hopefully it’s just a simple chip swap and new firmware sort of thing.
I’m not sure about that, can someone confirm?
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xmacex
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Yes that’s how it works. I am not sure Teensy 3.x → Teensy 4 is an “upgrade” though, although number-go-up. Somehow I am under the understanding that 3.x is more accurate in some aspects, but I really might be mistaken.
Anyway, yes you can just pull the board unless it’s soldered on, flash the hardware, and you are good to go.
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DoS
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The main attraction for me is being able to fit more of the Hemisphere apps into the chip, but that’s also possibly not worth another ~30€ each to me right now.
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xmacex
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Yes, I am also following the development of Phazerville¹ with interest in the possibility for audio.
¹ as well as the divergence of o_C: on Teensy 3.x, on Teensy 4, on new hardware with Teensy 4 with 8 CV and 8 trigger inputs, audio I/O, USB host, serial MIDI, i²c, SD slot etc.
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Teensy 3.2 has a better on-chip ADC compared to Teensy 4.x, so accuracy/noise of your CV in will be worse if you “upgrade”.
I have two uOC 4.0 units under construction but am also very much looking forward to the new 8ch hardware with 4.1.
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DoS
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This might turn out to be the better option (for me) to wait for and see what it has to offer.
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From what I gather uO_C Teensy 4 builds use a separate, off board ADC and not the Teensy ADC.
