Req 4a — Choose the Mission

A robot project goes wrong fastest when the mission is fuzzy. “Build a cool robot” is not a mission. “Build a robot that drives to a line, stops within 2 inches, and raises a small arm when a button is pressed” is a mission. The clearer the task, the easier it is to design, build, program, and test.

Pick a task that is real and reachable

Your task should be just hard enough to show real robotics skills, but not so huge that you run out of time. A good robotics merit badge project usually has three parts:

1. A specific job the robot must accomplish
2. At least one sensor that affects behavior
3. Programming logic that makes decisions or sequences actions

Examples of strong project ideas include:

• a robot that follows a line and stops at a marked zone
• a robotic arm that sorts two object types by color or position
• a robot that backs away when it senses an obstacle
• a subsystem that raises and lowers an attachment to set positions using a limit switch or encoder

A weak project is one where the sensor is just decoration. If the robot would behave the same way with the sensor unplugged, the task probably needs improvement.

What to record in your engineering notebook

Your notebook does not need to be fancy. It needs to be clear. Write down:

• the task you chose
• why you chose it
• what the robot must sense
• what the robot must decide
• what counts as success
• limits such as time, size, parts, or budget

Try writing a short mission statement like this:

My robot will carry a small object from a start zone to a target zone, stop when a distance sensor detects the wall, and release the object using a servo-controlled arm.

That statement already includes action, sensor feedback, and programming.

The mission comes first. Next, turn that mission into a design you can actually build.