Hello everybody!
I am looking for a sensor that will be able to tell when a full rotation of a pointer which rotates inside a circle was completed.
The circle diameter is about 1 cm, and the sensor should have a distance of 0 to 1 cm from it. The pointer is red and also both the circle and pointer are protected by glass about 0.1 - 0.5 cm above them.
I understand I need a sort of color sensor, but which one? any help will be appreciated.
I am looking for a sensor that will be able to tell when a full rotation of a pointer which rotates inside a circle was completed.
The circle diameter is about 1 cm, and the sensor should have a distance of 0 to 1 cm from it. The pointer is red and also both the circle and pointer are protected by glass about 0.1 - 0.5 cm above them.
I understand I need a sort of color sensor, but which one? any help will be appreciated.