Let's Make Robots!

Have you spotted THIS?

Let's Make Robots!

So i found this when i looked where members do live.
There is green colour in the logo!
Did you spot this before me? 

Picaxoid

Sneak preview of my new project. Just some pics...

More soon...

Boards & Boards (to get you bored) -- a log of homebrewed circuits coming to life...

I decided to make a blog to serve as a log for the boards I design and/or produce... well mostly because I can. So here it goes.

NOTE: Older boards at the bottom, newer at the top. So do bottom-up read if you're after a chronological perspective.

 

05 - Practice makes perfect (eventually) OR the h-bridgemania

BoB the Biped and me with v0.91 board design

I got my pile of BoB parts from isotope yesterday and I was stoked to say the least. He even printed out a JAX name badge for me \o/ Thanks man! My BoB is glow-in-the-dark blue ABS and it luminesces as advertised. Blue Glowy BoB... mmm.

Initial test fits showed that there was going to be some grinding work in my future to make things work. One change I made to the original build list was using an HC-SR04 for the sensor. The sensor holes in the head were too close together so I removed some material on the outer edges to make it fit. It's real nice now.

BoB the Biped and Me: Tested, approved, and waiting for Rev. B PCBs. First vid with chickenparmi's sweet LMR bumper :D

BoB's edge detectors worked fine at home but in his operating environment at a bar he was failing miserably. There were many false edge detections while walking over safe ground. The high gloss surface of the bar was reflecting light under his feet during even the slightest wobble when he put down his feet (the point where the edge sensors were read). This led to him backing up into hazards I was trying to avoid.

Five free Insect Bot Mini kits

This is a free (well, it does not cost money) giveaway of 5 Insect Bot Mini kits.

 

All 5 kits are gone now, please do not request anymore but you still can comment :-)

 

Propeller Boards to use in Robots

As many of you are aware, I'm a big fan of the Propeller. I frequently get asked various Propeller related questions in the Shout Box which I'm all too happy to answer. However, I thought it might be a good idea if I made a more permanent record of my Propeller board related suggestions.

ADC0809 AD 8 Channel Analog to Digital Conversion Module and Propeller QS

OK, so one late night I bought one of these with the thought of using it on a Propeller board as they have no analog inputs and it be really nice to have some for motor driver current sensors and other sensors that are analog. Now after learnig a bit more I see this will eat a lot of pins on the Prop and to be honest, I have no idea how to make it all work. I think I understand the code. 
lots of questions abound...

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

Some empiric signal processing

I wanted to do something for my balancing robot even if i don't have the parts yet, so i decided that i could do some study on how to smooth the signal. I read aroung that many peoples who had a balancing robot working used some kind of filter becouse small noise on the readings of the sensor can compromise the stability of the robot. Some people used standard filters, some other used hand made custom hacks. Unluckly i haven't studied signal processing at school so the best i could do was reading about on Wikipedia and do some empiric tests.

Walzing Hard Drive Motors

Update: This page is just an archive. The real work is continued as a walk through. Please direct all your comments to that page.



I am the proud owner of a stack of scavenged hard drives. I hoped to find really fast, torqueless motors inside. But instead I found myself a project for my new found 555 knowledge.

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My UAV ideas

I've been reading this site for the past week or so, and it has really inspired me to get more into robotics. I've had a couple of ideas for robots that I want to make in the future, I am going to start of with fritsl's starting robot, but I just wanted to share some of my future ideas to see what you guys think.

Zezinho, the poser - interactive installation

This is the final result of the first stage of this project. An installation where zezinho calls for visitors and when a visitor reachs the mixing controllers he waits for new poses.

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my very First bot - eYandron1

eyandron1

 

 


 

My very first encounter with electronics - a very simple manually controlled robot. The main brain controlling it is a Attiny2313 + a motor driver board based on TIP122 transistors. At the time when I built this, I had no idea about a chip called L293D!

Walter Update & Voice Fail

Just a quickie update guys,