I want to build a simple obstacle avoider robot, but this time I want it to be self-recharging so I am building a dock for this purpose, so I want it to be able to locate the dock and go for it when battery voltage is lower than a fixed value.
I am having trouble to chose the right components for locating the dock, I think I am going to use an IR emitter on the dock so the robot can head toward it when battery is low (let's forget about the orientation problem for the moment, but if you have any thoughts about it that will be helpful) but I am not sure if the robot is able to detect the IR LED (or whatever) from a long distance (over 10 meter)
Is it possible to use this solution for this distance? If not, what do you suggest?
(If there is a simple ready solution to buy that's ok, let's say I have no budget limit)