This is my first post here in the forum so bear with me if I do someghing wrong.
I need a way to make a motor rotate Clockwize or counter Clockwize depending on how a person is rotated (not positioned) in regard to the sensor.
Distance 2-4 m.
Person may have some kind of transmitter on him.
What might the best sensor be for this to work smoothly?
IR, ultrasound, blob detection with camera or something completely different?
I hope to get som good answers.