Let's Make Robots!

Latest collected post on LMR

Ok, so I have wanted to build a robot for a while, but school prevented me from starting anything.  At the beginning of this summer I bought a Raspberry Pi to just … 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

Flash Memory of Arduino Uno

 

Sketch uses 13,308 bytes (41%) of program storage space. Maximum is 32,256 bytes.

Global variables use 2,082 bytes (101%) of dynamic memory, leaving -34 bytes for local variables. Maximum is 2,048 bytes.

processing.app.debug.RunnerException: Not enough memory; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing your footprint.

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

Looking for a custom built inspection robot

Hello to all the community,

I'm looking for a micro TIR (tactical inspection robot) either tracked or wheeled but tall about 1,7 cm , wifi controlled by pc or android tablet and with cctv camera.

Spinning line follower or maze solver
I've now attached a 3D model in Sketchup. Scamper started as an experimental omni wheel platform. The challenge with omni or mecanum wheels is that you need precise … Read more
Roams, seeks/avoids light, line following, hokey pokey, acts silly
Using a
Lil·li·pu·tian Read more
Look maaa', no tools! :D Well, that's not entirely true, but it isn't far off. I have constructed this robot with a minimum of tools (and materials) , for the … Read more
Remote-controlled from a computer.
  I decided to work on something smaller, using all the experience I gained with Kubik. This one is as small as I could make it, uses an Arduino Pro Micro for the … Read more
Hello,  After buying an Arduino starter kit and playing a little bit with it I found out that it's possible to create robots with it. Doing some research on … Read more

RG2

New Video 8-24-14      RG2 combines several ideas i have been thinking about for a few years.      With one CR Servo it can go forward or turn left or right. … Read more
An air muscle contracts when is is pressurized
I have been looking for alternatives for servo motors, and I stumbled apon air muscles. It seems to me air muscles are very promising they can do a significant … Read more

Homemade Artificial Muscles from Nylon Fishing Line

There was an exciting discovery that hit the news last month -- researchers at the University of Texas learned that appropriately coiled nylon monofilament line could be used to make heat-activated artificial muscles. Here's an article on it: http://io9.com/scientists-just-created-some-of-the-most-powerful-muscl-1526957560  I've had some success duplicating their work as a hobbyist -- in particular, I've gotten one of these muscles to lift a suspended ferrite core about a centimeter, then relax again.

Robotic parts made with simple tools.
     Even with 3D printers and milling machines accessible nowadays, I guess this post will interest some people. From time to time, I am asked how I produce my … Read more

Controlling a Raspberry Pi / Arduino Bot from the Internet Part 2 of 3

This is part two of a three part Series to explain how I control my BotTwo semi-Autonomous Robot from a webpage on the Internet. 

Here is a simple upgrade for the Raspberry Pi camera. STL files Here :- Thingiverse_Chiprobot Although the stock lens is sharp ..... it lacks that spycam … Read more

Which MOSFET to use for battery voltage measurement?

Hello all,

I'm currently building a buoy with a string of sensors that measures temperatures at different dephts. I'll be making a blog or Something Else later.

The thing is, I want to measure the voltage of the battery (Li-Po) to be able to predict when it needs to be charged since the system will operate "out-there-in-the-middle-of-nowhere".

[Update: Chapter PROGRAMMING - Bluetooth] Introduction x2 is a small humanoid robot platform for my current research. The specifications are as following: Read more
Control every robot with a customizable app
I just finished a project I have been working on for quite a while now - a fully featured universal Bluetooth remote for Android. Most controllers I have seen on … Read more
Bitbang Control over FTDI
This is a short note on how to setup a C programming environment for the FTDI chip in bit banging mode, since that's what I had difficulty doing. There may be … Read more

Join the *LMR 3D Print Club*

Do you have a 3D printer?

OR

Interested in getting prints done, but have no printer?

Let's help each other printing more stuff :)

There may be a 3D printer or someone who'd like to pay for a print close to you..

Super Cooler Code

Hi guys as some of you know I've been working on code for a project I have in mind, it not a new idea, lots of folks are doing it http://freeaire.com/ , I just want to put my take on it, and perhaps save some store owners some money and make a little myself.

 I live in Maine USA, winters are pretty cold here, lots of small stores have walk in coolers for keeping beer and soda code, so why not when its suitable use that cold air to cool the walk ins, a typical 8' by 20' walking cooler costs $250 or more a month in electricity to operate.

Some design stuff

App controlled using arduino uno, android
The robot will think using a cheap smartphone(<80€) and use gps, accellerometer and compass data from the phone to command arduino through bluetooth or host … Read more
Walks using 3 servos, makes sounds depending on its environment
Using a
So, now that I've built a couple of bots, I thought I'd try making one of those Bottlebots that they have on TV, you know on that program where they fight? What's … Read more
Follows light and avoids obstacles
Using a
Oh,I thought a lot for the name of this bot,finally decided to name it CLIMBEX. Climex is a kind of beetle, and since it can climb small obstacles, I gave it this … Read more
Latest Blog Entry (19 Aug 2014):  Phase 9 - Web Control (Serial Preview/Wannabe Web Control) Notice: Currently WIP on Phase 6 & awaiting parts. See project … Read more
Hello Everyone, I have been working on this one motor walker the last month on an off. It was inspired by Jerome Demers' single motor walker, but with a few … Read more

Phase 4 - Roaming with HC-SR04 on servo mount

For this portion of the project, I already knew that the ping sensor was working, so I started by soldering the HC-SR04 sensor to Analog 4 & 5 on the Motor Shield as seen here:
http://i1277.photobucket.com/albums/y485/BeepBoopBuzz/photo2_zps715cbdde.jpg
For some robot hobbyist, the function of PC mouse isn’t just serving for computer, with its case, we can build a lovely robot kit. Read more
Should be able to roam around my house, respond to loud sounds with a ear perk, answer questions like "What's the temperature?", augment home security, deliver voice messages, be an awesome robot and win me some prize money from somewhere.
I've been wanting to make a robot dog ever since I saw Blue Falcon and Dynomutt and Dr. Who's K9 in the 70's.  And I've also always wanted a robot that I can talk … Read more