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time passes by quite quickly

Dealing with several circuits, which I found on this site and figuring out how to handle aluminium, I truely underestimated how complex building a functional robot is indeed.

My last post actually is decades old. I hope to present my robot in the near future and participate on LMR more frequently (I´ve been reading a lot here though). Working on a robot has shown me some kind of passion. The problem is to learn about circuits and living a life (work, private life etc.)

Buy Online Electronics Projects in India

Electronics Engineering

Electrical Engineering

Computer science engineering

 

By online electronics projects at ;

www.nrdcentre.com

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

REVIEW:Arexx Yeti Chassis

This isn't the robot project yet, just the review of the kit that makes up the first part of it.

You can get the full version of this product with the Yeti microcontroller from Newark, but I wasn't interested in a full kit.  No, I just wanted it for its body:

Phase 3 Part 2 - Manual IR Control (Cancelled)

In-Depth photos and videos of this entire project are available on my photobucket library.

Here's how it looked with temporary IR mounting:

http://i1277.photobucket.com/albums/y485/BeepBoopBuzz/5884ec08-6500-483f-a29a-83471197807a_zps5246a029.jpg

Sub $4 USD Arduino Nano on eBay.

I am always looking for cheap and small micro controllers. Since I moved from 8051 and HC11 based boards three or so years ago, I have been using the Atmel based Arduinos for the most part.

For the past two years, I have used mostly the Mini Pro's in most projects. I like them due to the small size and the fact they are less than $3 USD on eBay. I would love to use Nano more, but due to cost and issues I have not.  Now, I have ordered a few (5 or 6) Nanos from eBay, and have had mixed results with them in the past.

The problems have been:

Phase 3 Part 1 - IR Receiver/Remote Sketch

In-Depth photos and videos of this project are available on my photobucket library.

You can download the IRremote library by clicking here and following the instructions. 

Phase 2 - Install and test motor shield

For this phase of the project, I am using the SainSmart Motor Shield, which is a clone of the Adafruit Motor Shield (V1). It is very easy to set up and use and even has a URL printed on the PCB for the Adafruit Motor Shield Library Download. That link is an awesome resource on both this shield and the motor library, so the software install will not be documented here.

Phase 1 pt - Testing stock R/C unit

For posterity, there are a number of detailed photos (and links below them for full-size image) of the current (Aug 2014) board being shipped in the Maisto Tech Rock Crawler. Here is also a link to my photobucket album with even more images: My Photobucket Album

General Overview: Everything worked great out of the box. No issues, so I jumped straight into examining the board.

Prototyping CNC MkII

Late 2012 I started developing a 5 axis, CNC controller. The PCB was made but It was a long term project that ended up sitting on the back burners. I never had time to test it or write code. Although an Arm processor would be slightly cheaper and more powerful I have kept the design Arduino compatible as this is easier to hack for most hobbyist.

Mini Groucho

I've decided to make Groucho into a two-wheeled balancing bot. This would make him 5' tall at least and 2 wheelchair motors will give him enough torque.

However, because I don't want to make Groucho-sized holes in the wall or destroy Groucho by ramming him face first into the basement concrete floor, I'm going to do a test case first.

My plan is to create a 2' tall, 3" deep, and the width of a long breadboard plastic frame.

STL support on blogs.

STL Files are now able to be added and viewed on forum and blog posts as well as robot project posts.  

Attach .stl files using the file attachment panel.

The uploads have a maximum of 4Mb and your stl should be created so it is centered on x and y and the bottom on the z axis to be displayed properly in the viewer.

You may upload more than one file at a time and the objects will be selectable via a drop down.

Let me know if you guys have any issues :)

STL Viewer (beta)

Model:
Rotate: |

Goodies Galore!

Hello LMRians. How are the projects hitting lately?

So, it was an unprecedented week as I had 3 packges rolling into my place, and I just wanted to make a tiny update on these goodies I generously received from a couple of LMRians.

Baking some Pi:

PC Control using an ATMega32u4

I am in the process of putting together a project for another hobby of mine; music. I am a trombone player, who dabbles with many many other instruments, playing in many types of bands. I play in a Band called Dennis, in addition to  a Brass Bsnd, and also play for many others as and when duty calls or opportunity knocks.

Pi Jumper

I finally had a chance to release Pi Jumper today!

Pi Jumper is my Raspberry Pi to breadboard breakout, designed to be useful in education (and at home).

Pi Jumper works well with Raspberry Pi models A, B and B+

Pi Jumper

Pi Jumper, mounted on a Raspberry Pi, with a female round header for easy bread boarding.

Worm Gear Servo build

Latest version - 9-18-2014

 

Tried this way too....

 

Finished product... well, nearly, still need to finish the controllers... and now working on elbow and wrist joint designs

Prototyping ComMotion

Introduction

I was inspired to create the ComMotion shield after building my robot Scamper. It took a reasonable amount of work to get the encoder feedback working how I wanted and I knew it would be much harder for a beginner.

Delta 3D printer distortions

I recently wrote a little code to plot the effects of various calibration/build errors on a deltabot.  They may be helpful to people calibrating delta bots...

http://wp.boim.com/?p=67

Miscellaneous items updates....

Not sure if I should blog this, or post as "Something Else"?

Been doing a lot of electronics stuff, I still don't know crap, but I solder pretty good ;)

AuMac, a multitask robot

AuMac

A multitask robot for children and security surveillance

 

Good bye for a while.

After seeing how many people in this group treat beginners, I'm leaving for a while until I can think clearly again. Most of the people who jumped all over me for defending a beginner were people whom I had respected.

As all of you were beginners at one time, I'm hoping that you can sympathize with my point of view. If you can't, then maybe I'm right to be leaving. One of the reasons I joined LMR was that it seemed to be friendly to beginners.

Wall-e MkII/Project 2: The master plans

Howdy all

 

As i right this i am basking in the glory of getting the final submission of my degree submitted for this semester.

The content: rushed, sub-par and generally shite, however it was submitted at 15:59 (one minute to spare).

This is a monumental occasion - While i'll probably have to resubmit them over the Summer months on paper I am now free to resume my tinkering!

I am writing this mainly to summarise my current states on my projects, and how i am hoping to progress...

 

Wall-e MkII

Toys for kids with disabilities

 

UPDATE July 5.

In the las couple of weeks, several hacked remote controlled toys made their way to the kids. See how they like it.

https://www.facebook.com/photo.php?v=256712307853021&fref=nf

If you want to helo, please contact the email addresses in the end of the video.

/ End Update

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The batteries are coming!

The LiFePo4 batteries I ordered for Groucho and Zeppo should be arriving tomorrow. Well I suppose it's actually later today by now. They got sent to the wrong FedEx shipping center and they're going to drop them off and take the pallet to the basement door! Of course, this is only for a minor extra fee... :)

So since the base and motors and wheels for Groucho have all arrived, I should be able to get things working eventually.

I2C IO expander/servo controller using a picaxe 20x2

20x2 picaxeI needed analog ports and servo control for the RPi in my R2D2 project that can be controlled with I2C. Because I have a few spare Picaxe ICs I decided to make one using a Picaxe 20X2. Currently I only need a single servo and a single analog input, but I don’t want to reprogram the Picaxe every time I add another sensor so I wrote the attached code to turn the 20X2 into a general purpose IO expander. 

Emotions and Motivations as behaviour architecture

Hi all, a few days ago, I started designing the behaviour-based architecture for my robot Hurby. I thought to design it as a Subsumption architecture (see my previous blogs) in which different behaviours compete to be selected as dominant, and hence move Hurby accordingly.

Wall-e MkII - the tinkering begins...

As progress with Wall-e MkI (the test Wall-e) continues I can't help but start planning the 'proper' build, or the MkII :-)

Consider this a 'thinking-out-loud', rather than a definitive plan; I will document the second build in it's own Project.

Background