PROGRAMMING: GETTING STARTED
Exercise 4: Modifying the Program to Make the
WonderBorg Follow an infrared Signal Reliably
In this exercise, we are going to take the program on Panel 2 from Exercise 3, and modify it, using the "interrupt" function, so that the WonderBorg will follow infrared signal 2 (Way Point) more reliably.
With the program from Exercise 3, when the WonderBorg has detected infrared signal 2 (Way Point) and is walking towards the signal, if an empty can or other obstacle is placed between the robot and the Interface, blocking the signal, then the robot will lose the signal and end up turning round and round on the spot. With this new program, however, the robot moves forward a little each time it more or less completes a full turn if it loses the signal, it should be able to find it again.
In the new program on Panel 2, if there is no sensor reaction, the WonderBorg turns
18 steps to the right, and then goes 5 steps forward. This means that it is repeating a behavior pattern of scanning its surroundings, and then changing its position slightly. The blocks for these actions are green overridable blocks, so if the sensor for infrared signal 2 is triggered while the rotating, it will stop rotation and start walking forward.
Panel 1
Panel 2
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| As a user you may opt to use the three |
| software. These are three completed programs that you can download to your WonderBorg. |
| You may want to try these out initially to become more familiar with programming the |
| WonderBorg. |
| The Adult personality is the most advanced |
| full range of its sensors. |
| The Baby personality does not use as many of its sensors as the adult. It hesitates |
| and makes noises before it advances forward. The baby personality also dances around |
| when it sees darkness (when you put your finger over the light sensor window). |
| The Dark personality is always looking for a fight. It will stay at a stand still and |
| use a threatening tone to try and challenge other Borgs. It uses a wide range of its |
| senses. |
| To access these personalities, open up the Robot Works program. Left mouse click on |
51 | Load. Select the "Personality" folder. Pick which personality you wish to open, click |
on it and press open. |
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By opening the
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