Hello,
I would like to know if it’s possible to use the QTR-RC to follow a red line and a green line on a white background.
Differentiating between red and green is hoped for but only optional. I would be happy to just be able to follow either a red or a green line regardless of which one is which?
Would the 8A be more suited to color recognition than the RC ?
Question 2 : Is it possible to establish another type of communication between the Arduino and the reflectance sensor (I²C for example) to ask for a value and to get a response from the sensor?
In other words, is it mandatory to use a digital/analog pin for each sensor or is there another way?
Thank you
I hope you’ll be quicker to answer since I’m currently putting my order on hold and I don’t know which to choose between the QTR-RC and the Zumo sensor. If the Zumo does support I²C I might consider buying it instead of the QTR-RC.
No, it does not. You can see this clearly from the product page, which fully documents the sensor (it should be obvious from the schematic alone that there is no higher-level interface available).