Today we were working on the ambulance mission, which is just a long, straight path out and back to base. We discovered that the big problem was that our robot was pulling to the right even though we were telling it to drive straight.
We tried switching the wheels around, and using another "identical" tire, but it still pulled right. We decided that the motors must be the source of the problem, but we only have two EV3 motors, so we have to make them work.
Using the move-steering block, we started telling it to turn very slightly left instead of going straight. We still had trouble getting it to go straight - it was still pulling right. Then we realized that the battery power was very low, so we stopped working to charge the robot. In competition, our robot will be fully charged, so we want to do these tests under the same conditions.
When it's charged again, we'll try to find turn values that make it go straight with the move-steering block. We may also try the move-tank block with slightly different motor powers for the two motors.
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