Let's Make Robots!

Recently Collected Posts

Remote Controlled or Autonomous Robot
Using a
This robot uses a Technological Arts Microcore11 HC11 processor, (2) Devantech SRF08 Range Finders (I2C) and a Devantech Magnetic Compass.  QRB1134 based homemade … Read more

LCD03 and PICAXE 28 pin Project Board

Hi,

Does anyone know how to connect a LCD03 to a picaxe 28x project board?

EDIT: I've already connected the LCD successfully to the board :D.

Hi, this is my airsoft turret that i have been working on for a little bit now. When I first started this project, I wanted to make an object tracking turret using … Read more
Navigates around via IR, produces oxyhydrogen, shoots off mosquitos :)
Using a
Update 2010.06.10: New video to celebrate the 3rd 2nd place at the GoRobotics competition   Ni hao robot builders,   If you ever see this baby in a store... Read more
  A friend of mine and I are working on a project called "TinyG".  This project is a motion control system for stepper motors  (up to 254) at a time.  However … Read more

The Making of Blaster Shark (Sumo)

Hello fellow robot builders,

Its been another while since my last post.  My building mojo has been renewed and I am starting a new sumobot.  The Vulcan Five is on hiatus until I can get the PCB replaced.  This time around I am building a minisumo which will compete in the upcoming Western Canadian Robot Games on May 15th.

Wheels - The Making of Blaster Shark (Sumo)

After the design of the body and motor mounts I can get an idea of what kind of wheels I need.  The things that are important to consider is the width and diameter.  Both are restricted by the dimensions of the the minisumo.  In my case, since the motor shaft is offset, I can go with a smaller diameter wheel and not worry about the bottom clearance of the robot.  But since the motors are somewhat long, I can't go with a really wide wheel.  With this in mind I figured that a wheel diameter of 40mm and a width of roughly 20mm would suffice.

PCB - The Making of Blaster Shark (Sumo)

The details of why I picked what parts I picked are covered in the Design blog.  What I am about to describe here is the tools and process I go through to design and etch my own PCB.

Circuit Design

Inter/Intranet controlled robot able to send video/voice/email and play with my kid from the office
Using a
Hi all,  I'm from The Netherlands and have a nice little girl that wants me to build a robot. Well, easier said then done so far. Since I'm an IT consultant I … Read more
It would compete in a Mini-Sumo class contest and push opponent out of ring
Using a
 Let me show you my latest bot. He was made using the Mini-Sumo class rules. A complete rundown on the rules can be found HERE. I strayed a bit from them as I use … Read more
Allows your robot to see and track nearby objects
The purpose of this cheap, easy to make eye is to allow your robot to track movement of nearby objects (within 200mm). After much experimentation and various … Read more
Navigates around via Sharp and tactile sensor, measures ionizing radiation, telemetry of radioactive activity via wireless 2 digit counter
Using a
Hi everybody! Finally I found the time to start building Mr. Radioactivity. The robot navigates around via Sharp and tactile sensor, measures ionizing radiation via … Read more
It will drive around my yard and help with chores
Using a
This is Yard Gnome. He is as long-term work in progess. YG has a build blog at http://letsmakerobots.com/node/18964 Read more
Patrols desktop environments, has a habit of shoving things off the edges...
Using a
This is Sebastian (A.K.A. "Sebbie"), a little palm-sized robot I built as a present for my partner since I figured it was about time I built something for her =) Read more

Yard Gnome Blog (was Mobility Scooter!)

 

 

 I am building an outdoor robot named Yard Gnome to help around the house. I'm starting from a mobility scooter, kettcar and other parts.

 

  

 

 

 

 

 

Cost so far:

 

 

 

 

 

Obstacle avoiding, arduino powered robot with the option to toggle to remote control.
Using a
This is my first attempt at a robot.  I started off with a Arduino Robot Kit from robotshop.com and modified it a bit from there.  I used a Parallax Ping … Read more
Avoiding obstacles via IR sensor mounted on sweeping servo
Using a
Hi, its very fun to make my first post here!   This is my first try with the Arduino. A rover / bot Based on a brand new Traxxas Stampede. All it does is to look … Read more
Lightseeker/photovore
Using a
This is my second functioning robot. All the parts are recycled, so it didn't cost me more than a bit of time. The schematics can be found all over the internet, … Read more
Move around, controlled through Remote Desktop Connection, 27 MHz R/c controller, 2.4 GHz ZyXEL Roouter to serial port to PIC 16F628a, Voice activated and uses TSOP sensors to navigate it's way. It also records voice and Camera inputs.
Using a
This is acctually my first robot. I know that I had to start small but as I just passed GRADE 10 and I'm studying for IIT, I wouldn't have any time to do another … Read more
Navigates around via ultrasound, makes :D :) :( :| or :P, tries to catch everything nearby with its gripper
Using a
You can buy German Cheese in Shanghai, sealed in a nice aluminum can. Since a while I toyed already with the idea of doing sth. with these cans. Too good to throw … Read more
Main character in my GBxxLMR "universe"
Using a
Update: Same video, but now also streaming from a different provider, as some complained that they could not see the first one. I had 2 weekends to complete … Read more
Controlling Picaxe microcontrollers with a computer or let them communicate
Using a
On general demand (ok, Fritsl asked me...), I will show and explain you how to let several Picaxe microcontrollers communicate with each other or how to control a … Read more
Line Mazes and collision object avoidance
Using a
News (for those who don't want to read the article) -I have got one of the line sensors working. -I have got some basic line following going -I have given up on … Read more
Obstacle avoidance, solar charging
Using a
This is my first robot which is still a work in progress. My goal is to create a pet robot that charges itself and navigates autonomously. At the time of this … Read more
AXE121 is an cheap and easy to use Line Follower Kit that can be easily connected to the Picaxe 28 pin Project board. You can buy it on the PICAXE on-line … Read more
So this is what me and my friends are up to. We liked to make our airsoft games really intense. This is one of the 3 project we are making in order to enhance are … Read more
Navigate Around Via Sharp
Using a
This is my first bot. It is built from the LMR Starter Bundle. I hope to use this as a platform for a more complex bot that will be both autonomous and RF … Read more
This is my first blog entry. My first experience with robotics was helping build a Heathkit Hero 1 back in 1982. Now, I am ready for my second experience! Read more
The rules here are simple: Make a robot that one way or the other writes either "letsmakerobots.com", or "LMR" the way you like it.Shoot it on video, enter it as a … Read more