PmWiki | Student / WheelchairMuseumTour

Dara and I had change our task twice. First we want to work on the Search-And-Rescue task, but later on, we decide to work on the Wheelchair Museum Tour task. For the Wheelchair Museum Tour task, first we were planning to use one light sensor to indicate the white and black area. The sensor will be place on the white line, and while it on the white line, it will move forward. But if the sensor reach the black area, it will stop and turn 360 degree to find the white line. At first we thought it is a good idea, but the 360 degree-turn is the failure of the plan. It will mess up the direction of the robot. For this reason, when we on the bus to our house, Dara had suggest a really good idea which will be add to the second plan of our task. The plan will be introduce below.

Components:

CriketBot
2 actuators
egg's shells (as much as require)
2 light sensors
LED Number Display
tape

Sensor setup:

Each sensor will be place on the front left and front right of the robot. The distance of the sensors between each other will be a bit wide than the white line.

Command for the robot:

The robot will be start off at the end of the line. The white line will be at between the two light sensors. After we turn the robot on, it will go forward. At the intersection where the line are separate to two lines, one to the left and one to the right, both of the sensors will detect the white line at the same time. When this happen, the robot will turn left until the right sensor "sense" the black area. This command will take robot to its adventure. After the robot leave the intersection, the white line should be at between of both sensors, it will move forward until the sensors detect the white line. When one of the sensor detect the white line, the robot will do the command that list below:

Left sensor detect white line, robot will turn left.
Right sensor detect white line, robot will turn right.