Let's Make Robots!

Mechanical Thoughts

 

     First of all... this blog has been inspired by this thread.

     Here I'll post things that will never be a project in fact and I simply consider it interesting, or is still far from being a project.

     I hope to share ideas and I also accept suggestions.

 

Entry For Oddbots Robot Video Competition

Hi all, it's 2:44 am (yawn), and here is my video.

 

I spent ages trying to work out the music for it only to find out just before uploading it

that Youtube will probably mute it :(

 

Oh well. if it happens i'll try another service.

anyway do enjoy. 

 

Walter's new Navigation System (May I / Can I Go)

So here we go... I have been sick of "regular" navigation for quite a while now (more than a year now). The whole idea of "just keep going and if there is something there, react to it" is just not doing it for me any more. For the last year or so, I have been thinking about and working on a new system of "may I go". The theory is basic: Before you start going somewhere, check that there is somewhere to go! In the system I am using now, a 180 degree scan is performed and the sonar readings and angle is sent to processing.

The most advanced amateur humanoid robot project

Hi LMR!

This is the MAAHR project. MAAHR stands for Most Advanced Amateur Humanoid Robot. The goal is to design, build and program a robot which is similar sophisticated as ASIMO. The project is completely open source, everybody can participate. I'll sponsor MAAHR with 15000USD for hard-, software and logistic.

MAAHR's specifications so far:

Sneak preview of T'REX robot tank chassis prototype

 

Inspired by the Rip Saw tank, I have designed a new robot chassis called the T'REX tank chassis. I finally received all the parts for the prototype chassis. The entire chassis including gearboxes and tracks are all metal. The tracks have been anodized a gun metal grey colour.

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. 

Genetic Programming and Walking the Dog

I have been thinking for a long time about how to harness the power of the internet into programming robots.  I can imagine a robot here which I give some form of task.  Let's say (and this would be relevant) finding a wall socket and plugging itself in.  The task of successfully identifying a wall socket, moving the robot to a correct location, and inserting some sort of plug would seem monumental.

sensor jitter problems? Let's fight back.

I wrote a tiny function in Arduino-C for my sensor-jitter problems. You can smooth out your sensor readings with this little function. You can input the smoothness and then get back the smoothed sensor value.

If somebody needs it - here it is:

// Jan Przybilla, Rosk, Farbtonstudio.de
// SSR - Smooth Sensor Readings
// Fight the (((Jitter)))!

µBotino - 2"sq board for robotics, Arduino compatible

After playing with the Robot Builder's Shield, I've decided to make a small robot board that has the same features as the shield. I wanted it to be 2"x2" (5x5cm) so it can be fabricated cheap and to be appealing to many robot builders that still build small robots.

I present the µBotino robot controller. Features: 

IR phototansistors, sensitivity and RC time constant

Some time ago I had a great idea: I'm going to make two robots. One will be an obstacle avoider and its job will be just wander around with its big head. The other bot will then try to catch it and hit the head with a hammer. Tracking would be done with infrared leds and phototransistors. For the time being I've pretty much completed the first part and posted Head. Head already has infrared leds on its head so next thing would be building an infrared tracker.

A journey into small robotics

Swarmi - A journey into swarm robotics

$20 Robot platform

The Making of a Robot including Mcu for less than $20

This project was devised to show how easily it is to make a robot on limited funds.
It is a good "Starting Off" Robotic base as it can be easily changed and transformed.
This is just the start of the project and there are many additions planned for it.

Simple motor control for Mr. Basic

I have seen a few people asking questions about controlling Mr. basics motors. One problem is that they draw more current than an L293D can handle. A L298N will do the job but you will want at leat 6V. Below is a schematic of the simplest way I know of to control your motors. Using a 5V relay you can run from 3.6V to 6V. I suggest a 9V relay if you want to use 7.2V.

Fuzzy Inference module for behaviour-based control

In previous blog I talked about the subsumption architecture of Hurby toy, now it is time to talk about the fuzzy inference module which controls its happiness state.

Hurby's happiness depends on two main variables.