Content in “ultra sonic range finder”

Rebel II

GobliZ — Tue, 24 Jun 2008 03:57:14 -0400

Primary image

What does it do?

Navigate around via ultrasound / Remote controlled / Line follower / Sumo bot

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 things, a real third wheel (now it was just a plastic cap that dragged over the floor), on/off buttons (every time I want to put it on I have to connect the batteries, remote controlling (I'd really like to know if I can make it remote control with a PCB from an old RC car I had lying around). First I started to design my new robot in a CAD program. I then cutted the pieces I needed from wood.

Cost to build

$100,00

Embedded video

Finished project

Complete

Number

Time to build

Type

wheels

URL to more information

Weight

IR Versus Ultrasonic rangefinder on grass.

lordofthedonuts — Tue, 24 Jun 2008 01:03:59 -0400

Hi, I'm pretty much new to robotic, even though I've worked with kit like fischertechnik and Lego NXT.

I know the base of it, and i'm good with electronics.

but here it is i want to build plane that coud fly by itself using rangefinder (Ir or ultrasonic) to keep a distance from the ground, but i've read that IR sensor aren't good outside and that ultrasonic doesn't work good on absorbant material (Grass).

Since it's a plane I also have to consider weight in my choice.

Wich sensor would be the best for this task ?

How to connect SRF05 to Picaxe 28 pin Projectboard

fritsl — Wed, 13 Feb 2008 11:55:09 -0500

If you are a newbee, you may only have learned that the Picaxe 28 pin Project Board has some inputs and outputs.. And you may have purchesed an SRF05 (that Picaxe refers to as SRF005), and you are trying to connect the darn thing.. without resoult?

Reason is likely to be that you are connecting the output from the Picaxe to the SRF05 through the darlington on the board.

The SRF05 needs (like many other things) a Pulse-signal, not just a "power on / off". The signal therefore must come directly from the Picaxe chip.