Saving Money Machine

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Step 1: Design

Step 2: What Should We Need?

30.5cm x 20.4cm cardboards x2

19.4cm x 14cm cardboards x2

30.4cm x 14cm cardboards x1

Arduino Leonardo x 1

Lines

sensor x1

Step 3:

Step 4: Circuit

Step 5: Code

My code

Step 6: Assemble

1. Firstly, assemble the cardboard

2. Second, cut a place that you can throw coins in.

3. Third, make 5 holes to put your LED. (3cm between each other)

Step 7: Done!

Put Arduino at the bottom.

Drop coins in, and 5 LED will lights.

You're DONE!