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Picture of Angry cup-jellyfish
The cup-jellyfish will “hop around” to show its anger when you push its “son”, which is actually a button. Also, when you feed it with a small fish, Jelly will light up to show that it is happy.


Step 1:

Picture of
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Materials you need:

-a disposable cup
-scotch tape
-some soft threads
-scissors
-conductive threads
-a coil of wire
-wire strippers
-Arduino Uno board
-motoproto shield with Arduino
-some LED
-a motor: EXI S1123 9G Micro Servo