Is there any sensor that can sense objects and give input based on what material it is? Or do I require different sensors for this purpose?
If this type of sensing is not possible, is there any alternate method to find what the material is?
The reason is because I planned to create a robot that picks plastic using a hydraulic crane and an ultrasonic sensor. If there is an alternate method to detect if it its plastic, please post it down.. It would be very helpful