pi4j-v1 icon indicating copy to clipboard operation
pi4j-v1 copied to clipboard

[Question] serial control signals physical pins

Open bennymeg opened this issue 2 years ago • 2 comments

Regarding serial control signals:

  • Is there a documentation about the default serial control signals pin mapping? I.e. if I want to send CTS (clear to send) signal, what physical GPIO pin should I use?
  • Is it possible to map serial control signal to a specific GPIO pin?

bennymeg avatar Dec 28 '21 15:12 bennymeg

I guess you should use default pins for serial: UART pins in BCM mode are: 14, 15

https://pinout.xyz/pinout/uart#

FDelporte avatar Dec 29 '21 12:12 FDelporte

I am talking about the control signals. I think the answer is that I need to change the GPIO function to ALT3 or ALT5 to enable this functionality.

bennymeg avatar Dec 29 '21 21:12 bennymeg