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				Ray Wang
				A Computer Science professor and a hobby electronics maker.
 
			 
    Latest from Ray Wang
    
        
            
                
                     
                
                
                    
                    04/28/2014
                    
                        Learning Arduino inspired me to invent the OpenSprinkler. 
                     
                 
            
        
 
		 
	 
	
 	
		
			
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