The overall goal of this lab project is to create a Lego robot that can navigate a
maze with no outside help.
Building a Lego robot requires many steps, ideas, revisions,
There are three basic steps involved in any engineering project:
design/planning, implementation, and problem solving.
In order to build a Lego robot,
one must sketch a design and create a general plan, put this plan into action by
programming, wiring, and building the robot, and solve various problems along the way.
The Lego robot is a group project, and therefore adds the aspect of teamwork into the
Not only must one think of ideas and solutions to problems involving the
robot, but also take into consideration his or her teammates’ thoughts.
Lego robot project not only produces a tangible robot in the end, but also develops
teamwork skills necessary to be an engineer.
There were various mathematical and scientific theories used in the Lego Robot
Lab, including current, resistance, voltage, Ohms law, analog verses digital, and parallel
and series connections.
Current is the flow of charged particles through a circuit element.
The abbreviation for current is “I” and it is measured in amperes (abbreviated amps).
Resistance is a measurement of the impedance over the segment, or two points, of a
The resistance essentially slows down the current.
Resistance is abbreviated “R”
and is measured in ohms (
For the Lego robot, resistors (as shown in Figure A) were
used to slow down the current going from the bumper to the breadboard.
The voltage is