Serial bus servo support

[PenguinAkiko]

Improve servo motor scalability, position, speed, and torque support
Perhaps it can be controlled by commands similar to M260

[droftarts]

@penguinya There's already an feature request raised for this on Github, see https://github.com/Duet3D/RepRapFirmware/issues/981
Feel free to add further comments to extend support there.

Ian

dc42 created this issue in Duet3D/RepRapFirmware

closed Feature: MODBUS RTU support #981

[PenguinAkiko]

@droftarts Hope it can be used on Expansion boards. The serial bus servo can be connected to IO 0 of 1LC.

[gloomyandy]

@penguinya What "servos" are you wanting to use here? Concrete examples would make it easier for folks to better understand the request.

[PenguinAkiko]

@gloomyandy For example, the Protocol 2.0 used by DYNAMIXEL XL330-M288-T, PWM servos cannot be used for torque control and speed control. Two-way communication can be used not only for servos maybe digital sensors or other non-real-time device control.