I’m working on how to put together a zynthian v5 with thru hole components and breakouts (for things like the mcp23017). I think it’ll make an interesting and very modular version of the hardware that will be great for tinkering with code and new hardware configurations. My question is, in the zynthian_hw files, what is the difference between v5_control and v5_control-rack? Is rack shorthand I don’t know? Why are there two versions of what appear to be the same schematic?
I just made my own encoder panel using the through hole dip package of the chip. Be aware that the schematics in the git use the surface mount package that has a different pinout, so be sure to reference the data sheet of the mcp23017. I almost miswired mine. If I’m at my computer later I’ll upload the modified KiCad schematics for the dip package.
Here you go. Not much happening on the back and I already wrapped the board in kapton tape.
And here’s my modified schematic pinout as well. It fully works, but it took me quite a bit of twiddling to get the hardware settings correct. (That settings page makes no f cking sense at first, and second, and most of third).
I’ll upload a screenshot of that at some point. My zynthian is currently on pieces while I’m designing and 3d printing a housing for it.
Oh yea, also I broke out the pins for the 4 bottom buttons so they can be hand wired and just have a header connector to plug in to for modularity. So that’s what the other 5 pin connector is on the back of the board.
Lol, yea. I knew I’d be handling it a lot while getting it working and getting it into a case. Also the chip edge of the board is going to be under the screen with the encoders butted up the side of the screen and I didn’t want anything to short on the housing. I’d just bought a couple spools of it so could afford to be extra.
Fantastic! As soon as I finish the move and my lab is up and running, I’m volunteering to mill a PCB with my CNC machine. Naturally, no SMD components, just through-holes like in the good old days.
Hi. I’m in the process of making my own encoder panel board, too, as part of a bigger project (yet-another minimoog synth MIDI controller - @lanfranco: I saw yours, but decided to go for a much smaller footprint).
It’s a “daughterboard” to add rotary encoders to a bigger board with lots of potentiometers and switches. I’m posting it here since I decided to add ARGB leds as well. I’m not sure what they can be used for, but there they are. I’m now waiting for the PCBs to sail from China.
This is the render of the daughterboard. It connects through a 7 pin header to my synth main board, but I plan to connect it to Zynthian too (it’s I2C plus power, signal and int).
I saw yours, and I’d love to have it. But from checking the posts where you explained the process, I understood that sourcing all the components and builiding it would be far more complex (and expensive). I then saw maasijam’s build and thought that forking it would be easier.
Once I succeed in building the firmware for RPico, I’ll maybe post my build in another thread here.
I saw yours, and I’d love to have it. But from checking the posts where you explained the process, I understood that sourcing all the components and builiding it would be far more complex (and expensive). I then saw maasijam’s build and thought that forking it would be easier.