Hello, I purchased the QTR-L-1A sensor for the first time and now attempt to connect and calibrate it.
Please explain the schematics on the Pololu page for the QTR-L-1A sensor (Pololu - QTR-L-1A Reflectance Sensor (2-Pack)).
- Are the 220 Ohm and 20k Ohm resistors integrated on the QTR-L-1A board?
- Is the white reflective surface on the sensor side (where ‘S’ i sprinted on the board), or on the emitter side?
- A photo of a typical application setup would help. Can you post/provide one?
Thank you!