Let's Make Robots!

ping

sonar

hi all,

I'm new to this forum. And I am making a new robot that will have a "go to home" functionality....
Our shield that we designed with Eagle arrived today from batchPCB.com.   We have to test it out yet to make sure it works properly. I was just excited to show … Read more
This compact sonar range finder by Maxbotix detects objects from 0 – 254 inches (6.45 meters) with 1-inch resolution for distances greater than … Read more

help with aparallax ultrasonic distance sensor on arduino

I just got my parallax ultrasonic distance sensor (#28015) and I have the "test code" running as I type, but how do I use it to warn my robot of walls?

P.S I am using an Arduino diecimila.

Navigate around via ultrasound / Remote controlled / Line follower / Sumo bot
Using a
This is the second robot that I've ever build. The first robot was Rebel. But this robot had some limitations and shortcomings. The things it missed are among other … Read more

Picaxe 18 and Ping

I just picked up a Parallax Ping distance sensor from my local Radio Shack and am trying to figure out to how hook it into my Picaxe 18 project board.

The ping uses a single pin for both input and output.  It first requires a trigger pulse to be sent and then it responds with a variable length pulse that determines the distance.  Can a Picaxe pin be switched from output to input?  If not, can I connect 2 pins to the single Ping pin?  Normally I would jut go ahead and try it, but I don't want to fry my Picaxe or the sensor.