changing the pitch of a tone in accordance to distance help

**Airkraft-NXT** · Admin Number of posts: 23 Location: Northampton Registration date: 2007-12-24

I am currently working on a project where my robot needs to be able to produce a tone that changes pitch according to the distance it is from an object.

Attached is a picture of part of the programming. However, I dont think this is right. For I only get two pitches: high or low. If anyone can tell me how to use data wires, or if there is another method of changing the pitch in accordance to distance, the I would be extremely gratefull.

Airkraft-NXT

**The_System_Programmer** · Number of posts: 4 Location: USA Registration date: 2008-03-05

since i've moved to robotc i'm not as fluent in NXT-G any more but try and get rid of the touch sensor (just in case).

in robotc all you woluld do is:

task main(){
while(true){
PlayTone(SensorValue[S4], 1);}//S4 is for sensor port 4
}
this is alot simpler i think than all of those pictures and lines of color, it's just line after line of code lol!

_________________
-The_System_Programmer (AKA Caboose)

**mike1** · Number of posts: 2 Location: Eastern US Registration date: 2008-07-25

You should try downloading the source code for the firmware it includes an NXT-G program of the light sensor try me program. It may take a while for you to find it. Though it should be at: LEGO MINDSTORMS NXT Firmware Open Source\AT91SAM7S256\Resource\TRYME PROGRAMS