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what can I utilities the charger with so the robot knows the exact position of it? acoustic location is not accurate enough even if it's hard to implement. lights are not good since the obstacles. If there is a way to send/receive some wave frequency that passes through obstacles and able us to find out it's source, let me know.

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  • $\begingroup$ what kind of a wave are you referring to? $\endgroup$ – jsotola Feb 8 at 16:46

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