#446

ahoy! I am probably the person to deal with that, and have been a bit snowed under with work, so the repo has languished a bit.

That seems like a reasonable request, especially if it’s behind a config option, which we could add to the editor. I’ve dropped some notes in the PR, but am happy to help get it through.

(Also - it’s a nice variant! I would adopt the power filtering going forward forever, tbh…)

3 Likes
#447

No, I couldn’t figure it out and got sidetracked. I bought cheap sliders and figured they were faulty, but I’m not sure at all what the issue could be or how to troubleshoot it.

#448

I’ve seen a similar issue which I managed to solve elsewhere (@disc0p, @jengineer), on a board which had the wrong opamp chips on it. What are the opamps at the bottom of the board? (That is to say, the eight chips in a row). They should be MCP6004s.

The behaviour you’re describing, however, was similar to what I saw elsewhere, on a board populated with TL074 opamps, and it was a board supplied by Emitum, I believe.

If you’ve got a board with TL074s on: that is never going to work. They are the wrong part, and they’re not compatible. Speak to the people who made it.

1 Like
#449

You’re right, they are TL074! Guess I will send Emitum a message and see what they say.

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#450

argh, that’s just infuriating, because that’s just straight up the wrong part. hope they can sort you out.

1 Like
#451

They gave me a partial refund, hopefully I can swap them out for the right part, otherwise it will be junked I guess.

#452

it is doable, depending on your level of SMD skill. the easiest way to remove the TL074s is to cut them at their legs (which will destroy them for future use, but they are cheap parts. This is a less good option with expensive ICs).

The body will drop free, and then with a soldering iron, you can carefully melt the solder and sweep up all the legs. Then, you can fit new MCP6004s like you’d fit any other SMD IC.

You might also be able to find somebody to assist here.

#453

not sure if this is the correct thread.

Has anyone done any work around getting the 16n to send nrpn’s? None of my searches are proving fruitful. Or barring that Msb/Lsb CC’s? I would love to be able to control some of the odder portions of my Digitone.

16n is a bank of faders [release thread]
#454

It’s probably the best thread we’ve got!

Nobody’s worked on that yet; the whole thing is very much engineered around CCs, and the current way the data is stored in EEPROM is… highly CC-centric.

It’d be relatively easy to fork the 1.3x firmware to investigate MSB/LSB CCs or NRPNs; working out where to put the config in 2.x would take more work, as would updating the editor.

But it’s a reasonable request. I don’t know of anyone who’s implemented this so far, thooguh.

1 Like
#455

One “issue” that I see with the NRPN implementation is that the ADC of the teensy is 12bit and NRPNs are 14bit data. I supposed it would be possible to achieve an approximation of that by upscaling the data values. 12bit is quite high resolution already so it shouldn’t be such a problem.

#456

Hi All,

My 16n Berlin modular edition is not outputting midi properly from the 3.5mm jack. I’m not sure if it is a hardware issue, but can anyone tell me which hardware components on the board I should be looking at? Chips, diodes, resistors? Thanks.

#457

Can you describe the issue in more detail? At first I didn’t recognize that the midi jack and usb midi values are configured separately in the editor.

#458

Yes. I have been trying to pass midi through from Norns scripts. The only data passed is invalid midi data with a B style dongle. Also no data at all is passed on an A style dongle. Here is some pictures documenting some tests routing midi from Norns to the 16n then out the Midi jack to a laptop.

I have reflashed the firmware and tried multiple A style dongles. Only the B style registers any data so far and it’s invalid.

The USB and TRS tabs in the editor have identical settings currently.

Any opinions are appreciated!

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#459

Thanks for the details. I will have to update to see if I’ll experience similar behavior. Didn’t realize this concerned features added in the 2.1.0 firmware’s release. Unfortunately I don’t have experience with this issue.

1 Like
#460

Can anyone point to good TRS stereo jacks for the 16n build please? I’d like to replace the MIDI jack on it to see if that cures what’s ailing it.

Give it a whirl and see how it goes, though @AtoV has verified that it is working fine.

1 Like
#461

Feels like a dumb question considering the technical level of some of the topics here, but has anyone modded (as in botched) power to LED faders in the 16n? I have built the board with just one fader and it’s working over usb and CV, but before I commit to 15 more sliders, i’d like to know if there’s any technical reason I couldn’t just jimmy a wire from 5v ( via a resistor) to the LED pin on each fader?

#462

I snapped off the USB connector on mine also. I’ve been procrastinating about fixing it. I’m going to have to bug a friend with better soldering skills than I have to replace the teensy, Have you got it working with midi yet?

1 Like
#463

So: broadly speaking, should be fine - appropriate value resistor from 5v to led pin on fader.

You might also want to add a filtering cap - just one - between 5v and gnd. 10-47u electrolytic, that sort of thing. I should have really done this on the original design - it will remove ripple and noise on the cv outs from any usb power instability. (The Berlin modular version has one added). With all the leds on your 5v supply, it might help reduce any additional noise they add.

But if all you want is the leds lit, yes, you should be fine.

2 Likes
#464

Thanks SO much for replying, I made that post really late in the day and the following day I had no idea where I’d posted it. It’s almost holiday time here in China so I’ll get some time to experiment, thanks for the advice.

#465

Build a Berlin Modular variant during the summer and I’ve used it as CV source. Just starting with midi stuff and I noticed fader 15 is not working on every boot. It works sometimes but not every time. Re-flowed connections all around the board and changed a IC4 op-amp but the issue persist. Could it be a teensy issue?

Edit: Updating to v210 firmware solved the issue. I think IC4 is responsible only for supplying voltages for the CV and not related to midi issues.