Jr. FLL: Robot Olympics

After the campers introduction to robot olympics they worked together in teams to build their own robots using First Lego League Kits. Once their bot was built the teams worked with Mr. Brown, Kona STEM Camp Project Manager, on understanding the aspect of programing a robot. He introduced the campers to human robot. Human robot is a game that uses one person as robot and a team of campers are programmers. They can give commands such “left foot up six inches.” After understanding the bases of programming the students embarked on programing their robots to complete their tasks like olympian.

Day 1: Mimic

The first Olympic game we introduced the basic campers to was mimic. This challenge served to establish foundations in programming, utilizing motor controls and time values to make their robots complete simple driving objectives. The game has five separate challenges, marked by red and blue tape, that scale in difficulty. Red tape represents a point where the robot has to complete an objective such as making an accurate turn or stopping, and blue tape represents the path the robot must follow to reach the red objectives.

Day 2: Table Challenge, Line Race, and Maze

Campers discovered the line sensor on the second day of camp. They experimented with taking values and if/then logic programming to create programs capable of reacting to changes in its surroundings. Before a team could move on to any Olympic Game involving the light sensor, they had to first demonstrate that their robot could drive from one end of a table to the other and stop within a centimeter from the edge without falling off. Teams utilized the light sensor to sense the edge of the table and tell their robots to stop. Only after a team was able to demonstrate their robot could complete the table challenge, were they allowed to begin the Olympic Game, Line Race.

Day 3: Maze (Human), Escape, and Sumo

Touch sensors and ultrasonic range finding were the focus of day three. We gave teams the opportunity to program a double touch sensor remote control, and to use it to navigate the maze through live human commands. Additionally, teams were introduced to the ultrasonic range finder as a means of completing the Olympic games of Escape and Sumo.

In escape, they attempted to leave the captivity of a box without touching any walls by finding an opening represented by a jump in distance sensor readings. Sumo does the opposite. Teams look for a drop in distance sensor values to determine the location of an opposing robot and charge forward to push them out of the ring.

Day 4: Work Day

Teams attempted to hone their robot’s ability in each existing challenge and create programs for challenges not yet attempted.