Ultrasonic polls per second

[rstar]

I’m building a robot with three ultrasonic range finders (left, right, front). In this thread: https://vexforum.com/t/sonar-scanning-robotc-questions/22783/1&highlight=sonar+scanning

it is stated that “The Ultrasonic sensor is polled approximately 20 times per second but varies depending on the distance.”

1. If I’m using three range finders, can I only do about 6 polls per second (i.e., ~ 20 / 3)?
2. What happens if you do more polls per second?
   Thanks

[jpearman]

See this thread, follow the link in post #2

https://vexforum.com/t/ultrasonics-robotc-looking-for-their-inner-secrets/25704/1

With three ultrasonics you will usually do better then 6 polls/second but it could indeed be that bad. The ultrasonic polling happens in the background under interrupt control.

Edit: Ok, so you had linked the same thread, the short answer is yes, more ultrasonic sensors mean less updates on each one every second.