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lab4

October 5, 2017

 Small Practice1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Small practice2

using transistor to control high voltage circuit: led + motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using tone and speaker to play a song

 

 

 

 

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