I just bought and assembled a hexbug off road truck. When I used the app, the wheels worked, but the steering did not. I live near to the Hexbug factory, so I took it in, and they did a wonderful job of fixing the problem. I had a bad steering sensor.
After they fixed the problem, they told me they had switched the electronics to their latest version, I started with Rev 1, they upgraded the electronics to Rev 9, which is all well and good. But the brain connections look different. Since they look different, I referred to the build instructions in the Vex Pilot app. They do not clearly show how the steering motor and sensor should be connected.
After trying some combinations that did not work, I found the following was the correct connection:
- Left Rear Motor
2, Steering Sensor
3, Steering Motor
4, Right Rear Motor
Which is the same way they were connected as shown in the Rev 1 build manual.
They took quite a while to repair my truck. When they brought it back, they told me the first replacement sensor did not work, so they had to try a second.
I have also heard other problems with the Hexbug electronics. I would suggest that if you buy a new kit, you may want to connect up all the electronics before you mount them, to make sure everything works. It is much easier to mount the electronics than it is to unmount them.
Let the buyer be aware!