How to make light control brush robot



This is home made robot (It's looks is funny)
mechanical section of this robot like traditional brush robot but 
you can control it by light 


parts list-

transistor Bd 139

resistor 1k ohm  X 2

L.D.R

L.E.D

motor 

 jumper wire 

bread board



circuit diagram


watch this making video



   



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