Easy! - Make a wired one and replace the wired connection with a Bluetooth connection. or: - Make one for fixed height and then make the height adjustable. Your question is like asking 'How to make a nuclear submarine?' What the heck is a oil palm robot? (wireless or not)
Select as Best AnswerUndo Best Answer
(I think it's a machine for harvesting the fruit of oil palms.)
Two things:1. This would probably benefit from being a forum topic, where more people will contribute.2. You'll need to give more details of the requirements: how wide are the trees, how tall are they, what sort of cutting action is required, what is the available power supply? etc A sketch of your ideas so far would be useful.