Hello @ian :slight_smile: Nice to see you again! 1. Yes. these two sensors have similar functions. (but its have adv and dis adv) Some users used to camera and others prefer Lidar. So they can use both or one of them what they purpose. 2. Of course. You can attach more dynamixel to TB3. 3. dynamixel used TTL and RS-485 communication and it supports daisy chain . So you can connect it over twenty motors. Thanks Darby --- [Visit Topic](https://discourse.ros.org/t/is-turtlebot-the-right-platform-for-us/1892/26) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: