Let's Make Robots!
Most students and hobbyist will use servos at some stage when building a robot. This tutorial uses Arduino sample code but the concepts are the same with any micro … Read more
Displays stuff on a little bitty OLED 128x64
I guess it's been an I2C weekend.  I found these organic light-emitting diode displays (OLED) at Itead studio for $5.   Nifty little buggers. Read more
UPDATE: Added info on making SPI programming jig (makes life a lot easier). UPDATE: Added ATtiny 84 info (though, the post is meant for the ATtiny 85). I've been … Read more
Sometimes the pins you want to use on a microcontroller are this type.
An open collector or open drain are output pins that are made of a transistor with no connection on top. Without external circuitry they can't really be used. What … Read more
This tutorial is an extension of my original tutorial on using motor encoders here: http://letsmakerobots.com/node/38636. This tutorial looks at some code I have … Read more
Make the shoutbox wide, a super productivety killer
Today I did what I'm best at, getting others to work for me. And todays victim were basile. First a little lure: 2013-10-29 09:12:00| |mogul| |@basile you are … Read more
Shows you the basics of using the G+ LMR hangout
Some people are having difficulty joining the G+ LMR hangout so I thought I’d make a quick walkthrough on how to join and use some of the features. Read more
First off I have found no way to get gEDA and PCB to work properly in Windows. RobotGrrl used/uses it on her Apple machine. Read more
Provide precision speed control of motors
This tutorial shows how to connect 2 DC motors with simple encoders to an Arduino for precise speed control and distance measuring. The sample code is written for a … Read more
I've been working on re-making the the Open Hardware Pulse Sensor so it'd be easy to send off to OSHPark and to make at home. I'm not sure, but I think I started … Read more
Gives all directions for two motors
I designed this circuit for those interested in controlling motors that require a lot of Amperage, but have gotten frustrated over trying to create a MOSFET … Read more
Tutorial about how to teach your BoB Biped to walk
Introduction This tutorial show a way to teach your BoB to walk and turn in an interactive process.  For using the Poser software you will need a real BoB biped. … Read more
Controls two bi-directional low power DC motors
Hello LMRians, Ever tried using the pololu tb6612fng dual motor driver? Quite handy if you are thinking of controlling two low powered DC motors. It can handle a … Read more
reads gcode from the serial line, moves stepper motors
I've been playing with the Adafruit Motor Shield v2 for some upcoming projects. I wrote a simple Gcode interpreter. With this you can write commands on the serial … Read more
Robust superstructure which can be relocated to other vehicles
I have written this to assist any other builders out there who have been thinking of using Maker Beam. I decided that I wanted to build a more rugged … Read more
Interfaces Arduino and Bluetooth 4.0 Module
UPDATE: 4/2/14 -- Corrected information and linked the new breakout board, v.9.9   Also, this fellow is working on open-source firmware for the HM-10.   Read more
Runs you through the basics of Robot Building
With more and more 3D printers emerging its time to brush up on some 3D cad packages. My preferred software is "Blender" as it is a very flexible and easy to use … Read more
You have to follow these instructions if you want it to work
I noted some members have been posting links to YouTube videos lately rather than embedding them, and a few have said it was because they weren't having any luck … Read more