VENT Bot Maze Mission

A LEGO Spike Prime Challenge to Save the Mars Base

🚀 Your Mission

The Mars base has lost power. The lights are out. Systems are offline. The only way to reach the life support core is through a maze of narrow vents.
Your job is to build and program a LEGO Spike Prime robot — codenamed VENT Bot — to navigate the maze and save the crew.

Download your printable mission materials:
👉 VENT Bot Mission Tracks Printables (PDF)

💡 Pseudocode Mission Log (PDF)

🧱 What to Build

Begin by laying out a maze with items from home, class, or the printable maze tiles.

Your robot must be compact and precise. Use your LEGO Spike Prime kit to build a robot that can:

• Fit in a narrow maze
• Drive forward in straight lines
• Turn accurately using the internal gyro sensor
• (Optional) Use color or distance sensors to detect obstacles

Required components:

• 2 drive motors (left + right)
• Spike hub (with built-in gyro)
• Small chassis build with wheels
• Wires routed neatly so they don’t get caught in the maze

HINT!

We used the Driving Base 1 building instructions from Competition Ready.

💻 What to Code

You’ll need to:

• Measure the length of each maze segment (in centimeters)
• Record the angle of each turn using the robot’s yaw angle sensor
• Plan your program with pseudocode
• Write your code in the Spike app using movement and turn blocks

Example pseudocode:

Move forward 40 cm  
Turn right 90°  
Move forward 20 cm  
Turn left 45°  

Use the printable Maze Mapping Log to record each step!

HINT!

Watch this video about using the Gyro Sensor to make precise turns.

📏 Step-by-Step Instructions

1. Set up your maze using tape, tiles, or printed paths.
2. Test your robot: Can it move straight and turn consistently?
3. Use a ruler or tape measure to record distances between turns.
4. Use the gyro sensor to test turn angles (e.g., 90°, 45°).
5. Record your pseudocode for the entire maze path.
6. Translate your plan into a working program in the Spike app.
7. Test and revise — update your code until the robot can complete the maze!

🎯 Success Criteria

• Robot completes the maze without hitting walls
• Distances and turns are accurate
• Code is organized and based on measured data
• You used your pseudocode as a planning tool

🎥 Watch the Full Mission Video

See how the mission begins, how the robot is built and programmed, and how VENT Bot saves the Mars base! Leave us a comment on YouTube if you completed the mission!