Packet consists: step-by-step building instruction in pdf format; EV3-G program.

Equipment: 1 Lego Education EV3 Core Set (45544), ping pong balls, a basket for balls.

Score the most goals in the basket in three minutes. Only one of the sensors can be used every minute: ultrasonic, color sensor and touch sensor. To solve the problem, write three programs for one project.

In the design of the catapult there is a step-down multi-stage gear. It makes it easier for the motor to lift the pendulum. After the pendulum has passed the upper point of equilibrium, it falls under its own weight and hits the ball. Program the catapult so that the servo motor turns on and off only at the command from the sensor. You need to write three programs (for a color sensor, an ultrasonic sensor and a touch sensor).

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