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the 3dpcb usually don’t need support, unless specifically mentioned.
The wire channels are 45deg which is ok by most printers :)That could explain it, but also the thin wire, especially for power and ground.
Try to be quick with the soldering. If you just solder the wire and component, the plastic won’t melt.Practice makes perfect ;)
I was more thinking about one USB host and several serial MIDI interfaces…
Multiple USB hosts might be possible with a USB hub, but I have not tested and would probably use a raspi instead (overkill, but easy to develop)
/j
Strange, they are daisy chained, so data should leave the first module and continue to the second. I would double check the three connections between the modules again. There is a rick that the last or the first LED is broken and not being able to send data.
You could experiment with connecting both modules to data out from the Arduino (removing the wire from data out) to see if both modules are showing the same image…Did you get it to work?
I usually add a thin layer on PVA wood glue mixed with water when I have problems with attachment on the first layer…
Hi, seems like you discovered a bug in the code. I have not seen this problem, but I wouldn’t be surprised if I missed something ;)
So it can only play one pattern (one display) no matter where you are in the song, or is it only the last pattern of the song?
The function patternInc() at line 688 handles the next pattern and is loaded when curPos = 15 in the current pattern.
As you mention, it could be some error with the files, did you try the two songs I included on github?Hi, sry for not beeing able to help, but im glad that you figured it out anyway ;)
“Winners never quit and quitters never win”I added the other switches for future use, like menu navigation, volume etc. If you miss a function, modify the python code. Check the BUTTONS THREAD (RASPBERRY PI GPIO), row362
Hmm, weird. Does any of the other LEDs show the start-up animation?
1. Do you have the right version of the pro micro (5V 16MHz)?
2. Doublecheck the orientation of the led strips. (the Data IN should be connected to the Arduino).
3. Set debug to true, recompile and upload. Open a terminal (@115200 baud) and check if you see debug info when pressing keys.
I also had one port that came loose. I was able to resolder it since the pads were intact.
The problem is that the connector on my board is not using thru hole solder pins that can handle larger forces.
Some ideas:- Modify the 3D model and extend material to support the cable. It becomes quite bulky but could work.
- Solder a wire over the connector and attach it tightly to the backside of the device. Heating the wire will fuse it to the PLA.
Epoxy glue is probably not a good idea, since it risk filing the connector and preventing cable connection.
I have continued to experiment with Eurorack modules and have ideas about creating a MIDI host to CV/ trig converter module. My plan is to use a SEED Xiao as midi host / main CPU, together with 2x 12 bit i2c dacs and a OP amp stage to expand the CV voltage. That would give you two channels to start with, it would be quite easy to add more, but I guess that most Eurorack builds will focus on a few synthesis at a time anyway…
It definitely won’t cause any harm, but I haven’t seen any problem without it. For the LEET project I have strived to keep component count to a minimum, making it easier to buy, build and debug so I removed some best practices that I probably would have considered in a commercial product, like impedance matching resistor or a larger decoupling capacitor for the LED strip.
I have continued to experiment with this and it looks quite prommising. After feedback from other users I plan to support +-10V levels to work with existing modules.
Hi
Nice projects, love the sequencer.
Your ideas for 3.3v should work, but if you use a level shifter there is no need to sacrifice one LED.
I have experimented with an ESP32 as synth using mozzi, and a I2S DAC for sound out, but I also like the idea of wirelessly delivering Bluetooth audio to BLE speakers. Maybe one day…
If I’m not misunderstanding you a TTL 2 DIN midi is just a few components, (diode, resistor & optocoupler) and should be easy to add. LEET is built with MIDI over USB, but the devices should be easy to tweak if you want to add MIDI in or out.
