a.) There is 1 servomotor in the arm of the mother, which moves up and down triggered by 1 sound sensor.
- The son’s Buzzer triggers the mother’s program.
- She also makes a noise with 1 Buzzer as if she is arguing with her son.
- Boy has 1 servo motor built into his arm, which moves up and down in response to 1 Touch sensor.
- 1 Buzzer also makes a sound as if he is arguing with his mother.
- They take turns talking.
b.) A puppet theatre built with drive rails. The structure is driven by 2 servomotors.
- On each side, there are 1-1 infrared sensors built into 1-1 cauldron.
- When the boy stands in front of one of the sensors, the house is raised from that side by the rack and pinion assembly.
- Boy can be controlled by a remote controller made of 4 Touch sensors to one of the two infrared sensors, which activates the puppet theatre. With the 4 Touch sensors, the boy robot can be controlled right, left, forward and backward.