Let's Make Robots!

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This is a complete rebuild from v1.x, as you can see. This robot is much larger, and much more complex than v1.x was. I designed the decks using 3D CAD and had them … Read more
W.A.L.T.E.R. is my experimental and learning robot platform and will never be complete.  This is the first robot I built, back in 2006 - W.A.L.T.E.R.. It was named … Read more
It tells you the number of people who entered/left your room based on IR
  I'm using an IR LED an IR sensor and an 8 digits screen to show the number of people. When you go throughlaser the sensor sends a 1 signal to the screen.  this … Read more
Provides Rover 5 chassis with motor drivers, power supply and IR sensors
Introduction: The Explorer PCB was designed specifically for the 2 motor / 2 encoder version of the Rover 5 chassis. The Explorer provides all the basic features … Read more
My grandchildren are visiting for a month, as they always do during the summer, and when they arrived the youngest told me that he wanted to build a robot. How … Read more
My daughter and I created our first robot using the BeagleBone Black as the controller. My blog posts below document how we built it: I just got my Beaglebone … Read more
simulation
Angle bars are frequently used for strengthening purposes. Shown here are two ways that may be used on the angle bars: Method 1) Weld one of the flanges onto the … Read more
What do you do when your 6 year old is excited to share his idea : "Let's build a robot!" Well obviously you start building a robot with your son! At least … Read more
High speed omni directional robot ideal for soccer bots
Using a
Now with video, Scamper appears to be a little wobbly at slow speeds but that is because at only 6%, the motors are constantly stalling and restarting. Once the … Read more
Back in January, I found some video kind of like this of the Silbot dancing a Tango and posted a blog about it (from which the video appears to have dropped off.) … Read more
Goes 20.2 mph, reduces life expectancy
Most of the electric skateboards for sale today are big, heavy, and ugly.  The company promising to change that, Boosted Boards, is charging nearly two grand for a … Read more
Gets your robot up and running through a Python App
UPDATE : 7/14/2014 : 1) Controlling a robot via a Python GUI added 2) Video demonstrating GUI control added. Read more
This is my first robot. I have used an MPU6050 IMU, Arduino UNO, and an Arduino Motor Shield. The motors I have used are cheap ones, that is why a small … Read more
Navigate around via Ultrasound Sensors
I call this robot Explorer :) This can decide its own path using SRF05 ultra sound sensor. Its primary path is going forward, but if it finds obstacle within 20cm … Read more
Back in 2011, I upgraded a standard Parallax BOE-Bot with my RoboProp propeller based robot controller.. I wrote a two part article for Servo magazine about the … Read more

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I thought it was time to tell a little about the application I'm working on these days. Though very far from finished, it's starting to look like something bit by … Read more
Navigate around using Object detection and Distance Detection
Meet Sparky (Assistive Companion) currently sparky has the ability to find his way around objects and navigate through rooms. Every move that sparky makes is saved … Read more
  i did not want to use the normal methods of a balcing robot.... so i just but a big hunk a metal under the axle. bot demensions 43x43x82 brain: … Read more
just another light seeking robot  41mm wheel base  iphone for size comparison 14cm x 8cm x 7cm   parts list Read more

quad encoder read speed

This is as much a programming problem as it is a mechanical issue I guess.
A few of us are working with quad encoders at the moment and I'm just wondering about ideas how to overcome a problem I've encountered using some.
I'm using interrupt on change to count encoder ticks and also reading a 16 bit timer for the interval between ticks on each motor.

Hello, my first post and first attempt at a robot. I visited the Manchester (UK) Mini Maker Faire recently and saw some biped robots and I decided that I just had … Read more