Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Board v2 Feature: Pinout Switching #3

Open
tjhorner opened this issue Jun 16, 2022 · 4 comments
Open

Board v2 Feature: Pinout Switching #3

tjhorner opened this issue Jun 16, 2022 · 4 comments
Assignees
Labels
enhancement New feature or request pcb
Milestone

Comments

@tjhorner
Copy link
Owner

In v1 of the board, the pinouts are fixed, which means that desks must provide +5V on pin 5 and GND on pin 3. Some desks do not have these pins in the proper place, which means they are entirely incompatible without some cable-splicing hackery. For v2, I would like to add some way to change the RJ45 pins that these two power lines live on post-manufacturing, so that other formerly-incompatible desks could be used without any physical changes.

Currently I am thinking of implementing this with some DIP switches — one to dictate the +5V line, and the other to dictate the GND line. Progress on this feature will be tracked in this issue.

@tjhorner tjhorner added the enhancement New feature or request label Jun 16, 2022
@tjhorner tjhorner added this to the Board v2 milestone Jun 16, 2022
@tjhorner tjhorner self-assigned this Jun 16, 2022
@tjhorner tjhorner added the pcb label Jun 18, 2022
@tjhorner
Copy link
Owner Author

After looking into this, it seems like it's not a very easy task. I think it would be better to make different versions of the board with common pinouts, because there can only be, what, like three different pinouts? Four? So let's see if we can gather enough data on those and I can make variations of the PCB for that

@tjhorner tjhorner moved this to Investigating in Desk Controller Jun 25, 2022
@iMicknl
Copy link

iMicknl commented Jun 27, 2022

@tjhorner I can work with you for Loctekmotion desks. It seems there are two possible pinouts here, however it also seems that the desk controller can detect the 'control panel' and adapt the output...

We haven't figured this out fully yet.

@tjhorner
Copy link
Owner Author

Interesting. Does it swap where it outputs +5V and places GND, somehow? They might be using transistors/MOSFETs to do this 🤔

@matthewfcarlson
Copy link

I'd look into jumper pads. Sparkfun uses them all the time to be able to configure their boards with different voltages. You'd just need really good documentation to make sure you don't short 5v to GND

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement New feature or request pcb
Projects
Status: Investigating
Development

No branches or pull requests

3 participants