Let's Make Robots!

motor shield

Fetch a beacon, Follow Me (beacon), and obstacle avoidance
Using a
Work in progress. I don't know if this will be 2 robots or one yet. My wife got me an OWI Robotic Arm kit and a DFRobot 4wd Chassis for christmas. I picked up … 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
navigate around via Sharp-IR
Using a
Hello from Germany LMRians :) I'm new here and I'd like to share our little SH robot here. At the beginning of WMR, we wanted to translate LMR's SH, but I think … Read more

Arduino Motor Shield Help!!!

I just got my first Arduino motor shield. However, all the servo ports have 4 pins. The problem is that my servos only have 3 pins. Any help is greatly appreciated! By the way, my shield is an Arduino Motor shield from Seeed.

Can take simple Forward, backwards, stop commands.
Using a
My robot is a hacked RC car controled by an Arduino Duemilanove.   It has no sensors,  but I have left room on my chasis so I can add some more later when I feel … Read more

Basic "Start Here" Robot (with Arduino)

I am brand new to robotics and I am about to try and build my first robot as a learning experience to get familiar with the basics (based on the "Start Here" design by Frits). I'll be using and Arduino Uno board instead of a Picaxe however.  After reading some other posts I have come up with a list of parts and several questions. I actually have some of these parts already but wanted to sanity check that I am on the right track. I am pretty comfortable with learning the programming aspect of this but want to make sure I have a good start on the right hardware configuration.

Navigate via ultrasound and light, controlled by IR.
Using a
  Hi, This is my first project and I am a big dumb in electronics... :) so, if u see I'm doing or saying something wrong or stupid please tell me :) Mr. P stands … Read more
Navigate around with IR sensor
Using a
R.A.V. ( Red Avoiding Vehicle) LOG: // 10/2/11 : LMR RAV and servocentercode files added Read more

Energy outlets for this motor driver

UPDATE:

New battery = No results.

What's wrong?. Arduino energy from USB, Shield energy from 7.2v and code that works on other robot. Tested with another motor just in case and zero, nothing, blank, null, etc.

Navigate around via ultrasound, remote control via Xbee wireless
Using a
-> Video now added <- This robot, Huey, improves structurally on my previous design, providing a more finished look and a much more durable chassis, but the … Read more
Allows to build basic robots with arduino very easily
I wanted a single sided motor shield which would allow me to control a few servos and 2 DC Motors. All this while allowing easy sensor interfacing. The shield had … Read more