I want one robot to find the distance(need not be accurate) between the other robot
method that I thought was use relative positioning , i.e start all the robots from the same point and as the robot moves increment/decrement a (x,y) variable stored in it based on the direction it moves . However this method is very basic,inaccurate and non-scalable
Where can I buy optical encoders , How do i read its data ? please send me the links as well .
by low accuracy i mean may be around +/- 20% error will do .
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