Hi everyone. I am trying to drive an arduino controlled autonomous robot (REX 2WD) for predetermined path as in the figure attached. robot needs to stop at every square (50 cm apart)
2: Well, I need turns, so how can ı make these intetional turns, after the turn how can ı use gyro
3: my advisor suggests me to use encoder. However, i have no experince, two disc encoder, and one rotary encoder. Would encoders be more feasible solution?
4: I consider usin ultrasonic distance sensors to correct the position before turns such that the robot is not outside the playing field. How can i employ these
5: any other suggestion that makes the project easier.
6: if i use atmel avr C language that would be awesome
Two motors. Measure the difference in distance each motor travels for a given period to be used to calculate the steering error when both are commanded forward at same rate.
Three ways:
Command one motor forward and the other motor backwards (center of drive remains constant)
Command one motor to stop and the other motor forward (arc formed about stopped wheel, center of drive half "car" length "high")
Command one motor to stop and the other motor backwards (center of drive half "car" length "low")
This measures the true travel of each wheel/motor by counting notches in the disc, so you know how many "slices of pie" your wheel has travelled.
What if you are in an open area? (answer: no return echo)
Don't assume two motors will behave exactly the same. Do a lot of physical measurements and trials, and make your system provide lots of useful feedback to be re-used inside the process before moving the vehicle.
Lot's of "Rex" out there, but none rex-on-two-wheels.. maybe ROS? Is this the robot?
