So I dont really know how to solder. I paid somebody to do it for me. He soldered all the male header pins that came with the sensor. However, he also soldered the 100 Ohm resistor that comes with it.
In the datasheet, it says that you should solder the 100 Ohm resistor only if you plan to break it into 2 submoduls. I do not intend this. I want readings from all 8 sensors.
Should I desolder this resistor? Will it affect my readings? The board hasn’t been cut.
I read everything in point 6 of this PDF : https://www.pololu.com/docs/pdf/0J12/QTR-8x.pdf
Another question that has to do with the programming of the QTR 8RC:
#define MIDDLE_SENSOR 4,5
when using the arduino UNO, does it count sensors from 0-7? or from 1-8?
If it counts from 0-7, then the “middle sensor” would be between 3 and 4
If it counts from 1-8, then the “middle sensor” would be between 4 and 5.
So if I #define MIDDLE_SENSOR 4,5 does arduino know that I mean the space between 4 and 5?