Connecting Push Button to LEDX Model #17

Alaric323 commented 2025年11月13日 07:17:09 +01:00 (Migrated from github.com)

Hi revk, I've purchased a couple of your usb headerless boards over the past year and they've worked great so far. Thanks for developing these!

A new project came up that would benefit from a push button to trigger the lights. It is extremely unlikely for me to use the large data+/- pads for this project, so is it possible to rebind these pads to be the GPIO they're connected to?

WLED does not show these pins in the button section of LED preferences.

I would assume I could theoretically desolder the pin 4 LED and use that port as well, ignoring the potential damage aspect.

Thank you for your time!

Hi revk, I've purchased a couple of your usb headerless boards over the past year and they've worked great so far. Thanks for developing these! A new project came up that would benefit from a push button to trigger the lights. It is extremely unlikely for me to use the large data+/- pads for this project, so is it possible to rebind these pads to be the GPIO they're connected to? WLED does not show these pins in the button section of LED preferences. I would assume I could theoretically desolder the pin 4 LED and use that port as well, ignoring the potential damage aspect. Thank you for your time!

revk commented 2025年11月13日 07:59:01 +01:00 (Migrated from github.com)

OK, the D+/D- are USB, but the processor can redeploy those as GPIO, no problem.

• - is GND
• + is power
• D- is GPIO 19
• D+ is GPIO 20

Only downside is you may never be able to use USB again to flash/debug.

OK, the `D+`/`D-` are USB, but the processor can redeploy those as GPIO, no problem. - `-` is GND - `+` is power - `D-` is GPIO 19 - `D+` is GPIO 20 Only downside is you may never be able to use USB again to flash/debug.