The ultrasonic sensor always returns 300, even if I hold my hand in front of it at different distances.
I have already tightened cables and also replaced them. I updated the firmware of the cyberpi via mBlock 5.4.0 and also updated directly on the mBot.
The obstacle avoidance demo program is also no longer working, it just drives into the wall.
The mBot 2 is just 3 days old. Please help!