I've been playing with the CamJam EDUKit 3 for a couple of weeks now. My hope was to create an autonomous robot that could travel around avoiding things in front of it and to "map out" the area by sensing what was in front of it.
However, I have two problems:
1. The distance sensor seems to be pretty inaccurate, when the robot is stationary, the distance can vary by 30 cm or more regardless of what I do; and
2. The motors don't turn at the same rate for the same command so the robot spirals around rather than going in a straight line. I've tried making the duty cycle of the motors different to give more power to one or the other but it doesn't seem to be consistent so I'm almost at the point of giving up.
I know its only a cheap (inexpensive) kit and therefore perhaps I was expecting a bit much but has anybody else experienced similar behaviour?