Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
script_edit.png Write in your own blog: Blog entry
comments.png Discussions and questions: Forum topic
brick.png Show what you are making robots of: Component
lightbulb.png Help others with what you have learned: Tip or walk through
link.png Add a good web shop, a guide or a cool link: Web link
Filters (smooths) sensor or other data
This morning I was browsing LMR and ran across this post from janson .  In it he creates an averaging filter.  An averaging filter is a simple filter for … Read more
This is a Tracking system using an FPGA altera IV chip set. FPGA := Field Programmable Gate Array To explain a long chain of events that led to this … Read more
This is a robot that I built for the Trinity College Fire Fighting Contest. The contest is held each year around April 1st in Hartford Ct USA. The goal is to … Read more
This tutorial is still under contruction so please check weekly for updates. I have taken it out of "Draft Mode" because it has a lot of useful information for … Read more
Drives around like it owns the place
A few years ago I made a robot which I called Gumpy to explore the capabilities of the Arduino microcontroller with applications to robotics. Gumpy 2 is … Read more
For better readability I have attached a pdf, which explains how linear regression is used for supervised machine learning. In this paper I also derived the general … Read more
Carry Tools and Laptop to free human hands.
Using a
  COMPLETED: 2011.12.08 This is my first robot built from scratch and I am new to robotics. I haven't played with electronics for over 25 years and I have a … Read more
Some years ago I made this software oscilloscope and shared it on this site. Then a couple of years passed without me logging on, and in the meantime the link to … Read more
Hi!! I made  telepresence robot. Device was mounted on the robot:LIVA(small windows PC),Arduino Development language:Processing Read more
[Update: Chapter PROGRAMMING - Chat bot mode] Introduction x2 is a small humanoid robot platform for my current research. The specifications are as following: Read more
LM4755 amp it is a fun project i always like to build audio projects, i repair amplifiers.   chips: power amp chip(LM4755) preamp chip(LM4562) EQ 3 band(LM4562) … Read more
Inspired by RodriBot, by Luismi, I decided to make my own biped. I used the four servos that didn't fry in Kubik (the ones I had there before replacing with bigger … Read more
Guys this is my(our viz. me and my cousin) second robot based on Oddbot's Quadbot. Must firstly thank DAGU & robotshop.com for providing me all the materials … Read more

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Recently collected


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
This is a little board I made in anticipation of Mr. Bdk6's toolchain for the LPC1114. BdkdevThis toolchain is amazing.  Really, if you are wanting to break away … Read more

Use an Arduino to get to the Moon

So, this whole Maker movement has got you excited, and the rocket you are building in your backyard is nearing completion.  But you haven't decided on a navigation computer yet.  You were thinking of using a laptop, but your daughter needs it for school.  Maybe a Beaglebone Black.  Darn!  Seems they are sold out everywhere.  You look around your lab, but all you can find is an Arduino. At first you pass right over it.  But when you can't find anything else, you start to wonder, "Could it get me to the moon?"

ComMotion Shield for omni and mecanum wheel robots

After building my first omni wheel robot I realized how difficult it can be to monitor 4 encoders and drive 4 motors so I designed the ComMotion shield. As the name suggest the shield is designed for motion control but as I ended up with 2 spare serial ports I decided to add communications abilities to the shield hence the name ComMotion.

What every robot builder needs to know about

It is probably safe to say that every member of LMR is interested in machines that interact with their environment.  Interacting with the environment means getting information from it to provide feedback to the machine.  In the  electronics and computer worlds, "information" means "signals."  And since most of our robots use digital signals, whether with discrete logic chips or some sort of computer, and our machines need to do some sort of processing on those signals, we all need to be familiar with Digital Signal Processing (DSP). One note before we go on.

Makes a loud, piercing noise!
If anyone would like a look, I've posted a 3D printed loud noisemaker on Instructables and Thingiverse -  The Orange Screamer -  which is proving to be rather … Read more