Let's Make Robots!

ultra sonic range finder

Navigate around via ultrasound
Using a
This is my first robot and also my first electronic project, thank you the folks at LMR for a site that is so easy to learn from. Cardbot Read more
moving arm with webcam controllable from web.
Using a
A cheap robotic arm based on the OWI arm. 5 potentiometers were added to give it a position feedback,plus one motor controller to control the gripper and motor … Read more

TurtleDuino

Hi, I'm new to robotics and this forum. I've always wanted to build a robot but did not know where to start, until I stumbled on this site looking for parts for a R/C car and thought it would be a good idea to finally build my firs robot.

So, I got all my gear (tools) together and off I went into my caveman and started building my first robot. I decided to start with a simple obstacles avoiding robot project using the famous Arduino UNO. I'm going to name it The TurtleDuino because if all goes to plans it will look like a turtle.

Ultrasonic Backup Sensor for My Car
      Hey everyone I made this ultrasonic range finder backup sensor to enter a contest for an iPad. It gives you the distance to an object in feet … Read more
Ultrasound navigation, reacts on nearfield bodyheat, detects light
Using a
This is my first autonomous 4WDBOT on a DfRobot Base.I try to keep all mountings as clear and functional as possible - no decoration parts. Update: After some … Read more
Test bed & experimental platform for re-discovering the joys of robotics
Using a
Well, this is my first robot in approximately 15 years and damn but things have changed! Put it this way, the last book on robotics I read was 'The Robot Builder's … Read more
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

IR Versus Ultrasonic rangefinder on grass.

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 ?

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 … Read more