Let's Make Robots!
This is my first robot. It uses the Arduino Diecimila. It also uses a ping ultrasonic sensor to detect objects in front of it. For motor control I used the … Read more

Making a humanoid, guidanace needed

Hello everyone,
Am planning to make a humaoid,just a one which walks.
with 6-8 servos. Am not sure which microcontroller to use, will a arduino Uno be better than picaxe 40X2 or picaxe 28X2 in picaxe 28 starter board for this project?
am new to adruino bt a little familiar with picaxe.
The robot has to walk first(for biginning),then i will try to upgrade it.
I have ordered some servos: 

LED matrix wall is suddenly very hot recently. I also make one for fun. It can be used as a speech synthesis talking face, message display board, a Internet … Read more
Navigate around via ultrasound finding objects to play on.
Using a
After seeing fritsl's Yellow Drum Machine in action, I decided that I needed to build a robot like that.  It just looked so fun and to tell you the truth - it has … Read more
Price: $9.95 USD

 Collected by one member
This four-pack of 8-tooth injection-molded sprockets comes with two idler sprockets (with 1/4" holes) and two sprockets with 7-mm holes for use with for use … Read more
Hi everyone! There are a lot of cool robots up here. This is the beginning project of mine. It will use an Arduino to navigate around using an ultrasonic sensor … Read more

Robot Costume Contest

Hey guys!

If anyone is interested (and has mad costume-making skills), ezrobot is running a costume competition for Halloween! It can be any robot, it does not have to be an ezrobot. :) You can win some credit, and we would love to see some submissions from Let's Make Robots!  

https://www.youtube.com/watch?v=FNlTiHD1lkU&list=UU2MNH3R1kVMTNZM184bah7g

command an actuator through wifi
Using a
This describes how to use the GPIO on a wireless router as binary outputs and how to control your electronics from the linux commandline. Software I started out … Read more

The robots we've always wanted

In a recent thread, some LMR members started listing robots they loved and which inspired them, either real or from sci-fi novels or movies. My interest in robotics also finds its origin in our great sci-fi canon, and people listed some really cool robots I'd never even heard of. I thought it may be interesting to split this off as a forum topic and hear about even more robots out there and how and why they inspired our fellow LMR members to build robots themselves?   

This is not the first robot I made but the first one I was successful with programming in RobotC. The second video I used the sample program's and blutooth with a … Read more

new project: solar rover based on Picaxe 18X

the idea is to use a picaxe 18X as a brain for a little solar rover.

i have discovered that a picaxe can function as a solar angine because it works down to 2.5 volt

so im planning to use a solarbotic 33x37 policristalline cell wich provide 6.3V - 30ma

picaxe remain in nap mode untill caps reach a voltage near to 3.5 v then activate motors to accomplish an action loop....

and so on....

i use a 74ac240 as motor drivers and geared pager motors ...

 

by the test i have done till now it seems all can work properly....

 

NAObot

I really REALLY want one.... They're making them so that you can reprogram the whole thing and even put on different accessories... *drool*

Help with power circuitry

Ok so followng the advice in this thread and from these forums I have now bought a 7.4v and an 11.1v Turnigy LiPo rechargeable batteries (different voltages to be used in different applications).