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Here Comes the Bike!

Build a bike that rings its bell when it gets close to an obstacle.

Build a tricycle.

Here Comes the Bike!
Finished model

Blocks needed

  • × 1
  • × 1
  • × 1
  • × 1
  • × 15
  • × 2
  • × 19
  • × 1
  • × 1
  • × 1
  • × 1

How to build 14 steps

  1. Step 1
  2. Step 2
  3. Step 3
  4. Step 4
  5. Step 5
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  14. Step 14
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Coding mission

How would you code the bike to get from home to the supermarket? When it reaches the supermarket (obstacle), it plays “Mi,” spins 360 degrees to the left, and stops.

Blocks and their jobs

  • DC Motor Block ×2Bicycle wheels
  • Proximity Sensor BlockFinds obstacles
  • Sound BlockHorn

Let's think

Find different ways to get to the supermarket, and mark each way with arrows.

The bicycle starts at the bottom right. The supermarket is the obstacle.

Forward
Backward
Turn left
Turn right
Show the solution

First work out how many moves it takes to go one square on your map. Go forward – forward – turn left – forward; when the bike detects the supermarket (obstacle), it plays “Mi” and spins 360 degrees to the left.

Mission complete!

Built it and coded it? Tap to save your progress.

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