HOW TO – Make traffic light triggers
Blacksmith_tb writes – “Not feeling ferrrous enough to trip the induction loops that trigger green lights? No problem – just epoxy a rare earth magnet to your shoe! Inspired by a product marketed to motorcyclists, which is basically a big neodymium magnet to stick under your ride. I thought it might be better to get […]
 
         
         
         
         
         
             
             
               
		 
		 
		 
		 
		 
		 
		