/ODrive_LVDS_comms

Pair of small boards to connect Odrive motor controllers to motor encoders

Primary LanguageHTMLCreative Commons Attribution 4.0 InternationalCC-BY-4.0

Set of small PCBs for Odrive ◄► motor encoder comms

  • One board sits on an Odrive
  • The other goes inside a gimbal motor
  • They are connected with twisted pair wire
  • The goal is to increase noise immunity and have convenient connectors
  • One Odrive board can connect to two encoder boards

Connectors used

  • JST GH series 9 pin

IMPORTANT NOTE 1

  • The encoder board PCB should be 1mm thick
  • The ODRive board can be any thickness you like

IMPORTANT NOTE 2

  • The two SN65LVDS050PW chips on the ODrive board will conflict if you use only one motor at a time
  • Setting the chip select line high for a given SN65LVDS050PW chip puts its SDI pin into a high impedance state
  • If the chip select line is low or not active, the SN65LVDS050PW chip will assert its output on the shared SDI line
  • When using only 1 motor there are two options:
    • set the chip select line for the unused SN65LVDS050PW permanently high
    • only solder one SN65LVDS050PW chip

Status

  • test build done, safe to order boards