Hi all.
Started with one, and now there’s two. Just sharing some photos of my Twins. Total Awesomeness. Both are Pi4’s 4GB Ram and 64GB SD’s. Couldn’t be happier.
Regards
James
9 Likes
And what audio interface do you use?
Hello.
I don’t use any. The onboard sound of the Pi4 is extremely clean of noise and the latencey is so low that i cannot feel any difference between playing sounds from my Zynthain vs my Korg Kronos.
I’ve also built a tiny USB device that allows me to navigate the Zynthain by using hand gestures.
Regards
James.
3 Likes
Firstly . . . . 
We will, of course, be expecting some pictures at the very least … 
So those are Pi4’s? Where were the screen and case from?
Have you tried running them from a battery pack?
Arduino Micro? 
Hello.
Yes, Pi4 screens. That Amazon link you posted is the exact one I bought. Same model, same supplier.
I built the USB controller from a Teensy-LC and a APDS-9960. So right now it’s pretty small, but I can get it much smaller. Just didn’t have the parts necessary at the time I built it. I’m planning on buying a 3D printer from Amazon this week, so I’ll probably pick up a few bits to make the sensor system even smaller and all going well, I’ll be able to print off a nice tiny little dongle case for it. Maybe even print off a new Pi4 case with the sensor integrated.
Here’s the actual sensor I bought.
And here it is stuck to the back of a Teensy-LC with hot glue.
Here’s a link to the actual sensor I bought. The Teensy-LC can be got anywhere.
https://www.amazon.co.uk/gp/product/B07VG3ZTGS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I don’t have a video of the sensor in action on my Zynthian, but I did record this video for some friends in work for a different project I’m working on. This is way bigger. It’s a Arduino UNO, the APDS-9960, and an 8CH Relay.
This shows the flexibility of the sensor to work with 6 different gestures. It also supports colour, proximity and can measure light.
The Pi4 works fine off a Power Bank, but the one I have supports fast charge so it’s able to push out 3Apms with no problems at all.
Regards
James
6 Likes
I’ve had problems with running ZynAddSubFX with the onboard output. Does ZynAddSubFX run normally for you?
BTW, I love your compact Zynths! Thanks for sharing!
These problems should be solved now 
1 Like
Maybe the problem is that I haven’t flashed a fresh image in a while. 
An update should be enough …
1 Like
This is just beautiful !
How did you change the color of the menu ? 
