UNKNOWN ISLANDS P1 P2 P3 P4 Programming level 1 Rowing boat P1 How to build The robot Build the boat DC motor connected to the battery charger drives the “oars” P1 Static figures P1 to the top of the page Programming level 2 Sailing boat P2 How to build The robots Build the boat with 1 DC motor moving on a rack! Use a servo motor to rock the boat. Use one push button that moves the boat forward when pressed and one that moves it backward. P2 The robots P2 P2 Program to the top of the page Programming level 3 Hoisting the sail P3 How to build The robots The boat is built on a trolley and can be controlled by 5 push buttons: 4 buttons set the 4 directions, the 5th button when pressed hoists the sail to the mast using a servo motor and a gear, a rack and pinion. Pressing this button again will lower the sail. P3 The robots P3 P3 The programs to the top of the page Programming level 4 Disembarkation of the sailors P4 How to build The robots We build the boat similar to that in P3. We build a gear and rack and pinion structure powered by a servo motor, on which we place boat figures. An infrared sensor is attached to the front of the boat. The boat will automatically stop when the infra sensor detects the shore of the island. Then, with the help of the rack and pinion device, the sailors land. P4 The robots P4 P4 The program to the top of the page