|
|
|
![]() |
|
|||||||
|
||||||||
![]() |
| Thread Tools | Rate Thread | Display Modes |
|
#1
|
|||
|
|||
|
sonar is being lame
So i have been trying to get a ultra sonic senor working and i am having no luck. i have 3 to chose from but don't know what to use or how to use them.
we have: 1. The Paralex Ping))) http://www.parallax.com/Store/Sensor...me,ProductName 2. the VEX kit one 3. Max Sonar EZ1 modle We haven't gotten anything to give me a good value. If anyone has can they tell me what they did and tell me or show me. If you can that will be a great help to us! |
|
#2
|
||||
|
||||
|
Re: sonar is being lame
Are you using labview or windriver?
Use either the vex kit one of the maxbotics one. The vex kit one should have two pwm's on it one is the ping channel and one is the echo channel. Wire each of these to a digital port on the sidecar. I don't know what environment you are using. The Maxbotics one can either be wired for serial, digital, or analog (although you can't really use serial this year), digital should also have 2 pwm's, analog should have 1. Our team is using this sensor wired for digital. |
|
#3
|
|||
|
|||
|
Re: sonar is being lame
I recommend using an analogue ultrasound sensor. If you use a digital sensor, you will have to use interrupts to time how long it takes for the signal to return. I have not tried to do so this year in labview, and have not even looked at windriver. If you use an analogue sensor, you will only have to check to see how much voltage is coming back.
|
|
#4
|
||||
|
||||
|
Re: sonar is being lame
Quote:
![]() |
|
#5
|
|||||
|
|||||
|
Re: sonar is being lame
The WPI libraries for both LabVIEW and C++ handle all of the timing for you.
|
|
#6
|
|||||
|
|||||
|
Re: sonar is being lame
Quote:
It's an analog input so you need to feed it into the Analog Bumper. Read the input voltage and divide by 0.0098 to get inches (9.8mV / inch). You will probably need to filter the input because the cRIO seems VERY noisy. |
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| How to program sonar | FearlessLeader | C/C++ | 1 | 11-02-2009 22:39 |
| Sonar Function Issue | Andrew Blair | Programming | 2 | 20-02-2007 13:39 |
| Maxbotix Sonar Sensor | DonRotolo | Electrical | 17 | 04-02-2007 12:27 |
| VEX Sonar question | Joohoo | Programming | 2 | 06-05-2006 01:18 |
| Lame Question | RBrandy | Chit-Chat | 1 | 28-07-2003 17:29 |