Let's Make Robots!


I need a sketch for wheel encoding odometry inc library please?

Hi all, 

I am trying to control the speed of my DC motors using wheel encoders and reading the speed with an IR LM393 sensor. 

I have downloaded the library for the timer interupt, extracted it into my ardino library (where all my other libraries work)  and I'm still getting..

sketch_nov05a.ino: In function 'void timerIsr()':

1.27mm Headers in Eagle

Hi, I'm trying to make a breakout for a Wandboard. And I need to find an Eagle library that has 1.27mm pitch male headers. These are half the pitch of your typical 0.1" headers. 

Does anyone know of a good library that has these headers?


Python opencv

Hello everyone I have a problem regarding python and openCV. I want to make a rectangle in the middle of a video stream I was able to do it with a static image using the PIL library 


ATtiny servo control


After a brief discussion with fellow LMR member Maxhirez, about his Hedwig robot,
it seems as though there isn't much support for servos in the ATtiny family of
microcontrollers. After fighting with the 8-bit servo library I found HERE that was
supposed to make it as easy as a standard Arduino to add servos to an ATTiny project,

Library Basics - Baseline


 With all the questions surrounding libraries in the Arduino IDE, I thought I'd start my next blog about creating a class used as a library for my Ping sensor.  As a start, I'll use the example sketch from the Arduino examples.  Below is the example code created by David Mellis and Tom Igoe with the majority of the comments removed:

Original (uncommented) Sketch

A more powerful and versatile AVR library
Hey guys, I wanted to bring a video tutorial I created to the attention of LMR. The video is a walkthrough on how to use a software tool to setup a project using … Read more

Cool Arduino Library for driving servos!

I don't know if you guys already knew about these 2 very useful library to drive servo motors from the arduino, basicly you don't need to use analog write with an hexadecimal value to drvie the servo by PWM, you just write in degrees the angle and direction you wish the servo to go and it goes! 

Anyway here it is :