Hello, I am stuck with a problem with ros serial communication from a raspberry Pi zero running Raspbian Buster server image and ROS Melodic following instructions from https://www.hackster.io/dmitrywat/bittle-teleoperation-with-ros-and-raspberry-pi-22c454 By Dmitry Maslov
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As far as I can tell the master Ubuntu 20.04 and slave on the raspberry Pi zero are working correctly, I have used the appropriate permissions
sudo usermod -a -G dialout,tty pi
sudo usermod -aG tty pi, and enabled serial trough raspi-config.running master and slave gives me velocity messages in terminal when I steer using rqt_robot_steering and I get a video feed from the USB cam. When a command is sent from the rqt_robot_steering GUI, I get a beep but the robot doesn’t move.
This is not a hardware problem. I used the steps from the Petoi ros page https://docs.petoi.com/apis/rosboth nodes ran perfectlyrosrun opencat_server opencat_service_nodesending command below was executed perfectly.rosrun opencat_examples opencat_examples_client_cpp
Can anyone help with the issue?Thanks!
I want to share my rig. I used 2 brass standoff's to mount an acrylic sheet from a Pi 0 case. The USB camera is stuck to the acrylic sheet with double sided tape. Bittle can retain his head.😊