We have been working through the Self-Driving Car Activity Series in VEX GO and have come across some issues. For some robots, the program works perfectly, but for almost half now in my class, the students write the exact same code and their robot continues to drive past the red tape. When investigating, the sensor value seems to be stuck on “true” for red, no matter what color the sensor is on top of. I’ve tried changing out the eye sensor, checking for updates on all robots, turning the robot off and on as well as the Chromebook. We’ve adjusted the light brightness and slowed the robot’s velocity and nothing. My partner teacher is having the same issue and NONE of her 10 robots would stop at the red line today. We tried adjusting the code in different ways than what is listed in the guide and nothing worked. Any help is greatly appreciated.
Just to make sure I understand. You are finding that some robots are reporting bad that they always see ready. You have already tried the following without any success.
- Changing the sensor on the robots that are not working
- Running the same code on different robots with different results
- Testing the sensor readings under different lighting conditions
You are also saying that some of the robots work fine with the same code. With the robots that are working, can you try…
- Taking the brain from one of the working robots and use it with one of the robots that is not working
- Use one of the chrome books that you use for the working robots, connect to one of the robots that is not working and run a project from the working robot.
- Use the classroom app to connect to the GO Robots with the sensor issue. Use the app to see if the reported color and hue values changes as you point the eye sensor at different colors/objects. (https://kb.vex.com/hc/en-us/articles/5689868364180-Using-the-VEX-Classroom-App-to-Troubleshoot-Your-VEX-GO-Robot#eye-sensor-data-UUrx3)
