Poppy : how to connect an unknow peripheral on the serial USB?

I have to connect a homemade peripheral on the serial USB, but I can’t really find the right protocol to do that.
Does anybody know the right one?

Hi @Nath, could you precise:

  • What the “serial USB” is? Is that a serial output from the GPIO of the Raspberry Pi? Is that just a regular USB port? Is that the Dynamixel bus with 3 pins?
  • Which Poppy are you using? Ergo Jr? Torso? Humanoid?

Hi @Yoan, thanks for your answer.

  • It’s one of the four regular USB ports on the Raspberry Pi.
  • I am using an Ergo Jr.

If this is a regular USB device setting up a serial port, there is not particular protocol. Just plug in to the USB port and you have it in /dev e.g usually /dev/ttyACM0 or /dev/ttyUSB0 or /dev/ttyAMA1 (note that /dev/ttyAMA0 is already busy because it has been taken by the Pixl board).

If you need more help, refer to the documentation of that USB device, or precise what you intend to do with that device.

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Thank you!
I’ll try it when I can :upside_down_face: