VEXcode equivalent of get_proximity()

Programming Support VEXcode Pro V5 Text Tech Support
1

I’m using the optical sensor in VEXcode and want to be able to check the proximity value. I know I can set the threshold value with another function, but does VEXCode have an equivalent of the get_proximity()

1 Like
2

Try this:

Optical.isNearObject()

Documentation(s):

VEXcode API Refrence

Visual Studio Code Vex Command Help:

image
image696×371 11.9 KB

I tried to find a function that gives you a range of values, but it seems that the optical sensor is only capable of basic object detection (non-continuous), if this is the problem for you, maybe consider using a Distance sensor instead.

3

We’ve already used that function. I’m more interested in seeing what values it uses for the proximity and what changing the threshold actually represents

4

You will have to use the C API, there’s no C++ member function to access proximity.

// define your global instances of motors and other devices here
vex::optical     op1(PORT10);

int main() {
    int32_t value = vexOpticalProximityGet( op1.index() );

    while(1) {
        // Allow other tasks to run
        this_thread::sleep_for(10);
    }
}
6 Likes
5

Thanks, that’s perfect! Is there a reason there’s no C++ member function?

1 Like
6

idk, probably just not part of the spec when we wrote the C++ class or perhaps as it is a replacement for the legacy color sensor on IQ and there was no method to read proximity on that one. There are probably quite a few C functions that do not necessarily have a C++ equivalent.

6 Likes
7

Nice! I wasn’t aware of this. I will keep this in mind :+1: