Question title quite much covered it.
I am trying to build a sensor that lets me know when bottle or can bypasses the sensor, then sends anykind of data when correct object is detected, for example a simple audio beep.
1) What kind of sensor to do this (infrared, pixel-model camera or metal’detector’ etc.)
2) How to make it create event after detection (simple beep will do).
Basically the idea is that its a detector of bottles in outside environment.
I would appreciate links to articles/researches/buy lists/youtube whatever you can come up that could help me further.
I will be checking this thread almost daily so open a discussion with me! Im always open minded :)