Well first of all Hi everyone, although i've been visiting the site for a while this is my first post on LMR so here goes.

After seeing patrickmccabe's "Fundamentals of a GPS guided vehicle" tutorial i decided to give it a go. I got the code supplied in the tutorial to work without any trouble but when i started making some changes and adding to the code i ran into a few problems.

2.9.2010, past midnight

Lots of Ideas have been flying trough my mind since I got the motor driver ready.

(http://letsmakerobots.com/node/22363)

I am now thinking of making something like this, only a bit bigger.

This design involves having the wheels on each side connected to each other, so that they work almost as treads.

I've been asked by a few people from different places if there is a simple way to use an Arduino to build robots. I explained there are ready made boards like Roboduino, Romeo, Motoruino, etc. that can be used. Or a custom compatible board. I told them that I went both ways, mostly because Roboduino doesn't have an H-bridge onboard, so I designed my own customizable board, R-Dev-Ino. Usually people are puzzled with all that information, as they have heard about Arduino, some have used it in art projects or so, but did not hear about the other variants. Seems complicated...

So I am in the Arduino water and have started to swim. I found a cheap off-brand Wii Nunchuk controller, made a PCB adapter for the plug and have it playing nice with my Duemilanove. I have also taken all the numbers coming from the nunchuk and converted them all to nice clean 0-255 ints. From there, I coded a serial receive loop so the whole unit could be used as a stand-alone plug-in to other devices. Basically, the chip just sits there and waits for a single character followed by a CR. I.e.

Good news and Bad news............

Bad news :- is one of my Xbees "Kicked the Bucket".

I had been using the same setup all week and on a simple power-up its power Led blipped then remained off...........

Anyway i have to renew it - so for the moment i am "Grounded" - "Locked Down" .... Shift Happens......

While waiting for my parts I used my free time to learn Google SketchUp (just realised it sounds like Ketchup).
It is really REALLY easy!!!

Now that i got my new battery(8.4v 1000mah, down below), my bluetooth receiver for my "controller" died. Now i have to get another one.

I caught up with Steve (jazzed on the Parallax Forums) last weekend in person - he has been working on porting linux to the Propeller.  Sounded a bit ambitious to me, but he has been working with Heater and they already have Zylin's ZPU processing core up and running on the Propeller - uclinux can be compiled for ZPU - the only thing missing is memory.

Jazzed has been working on that, too - he showed me a prototype he's been working on that expands the Propeller Platform with  32MB of sdram -

       This is my first blog over here. first let me brief my self. I am an electronics and communications student 3rd year studying in india. Ok I just wanted to ask some of the like minded people here about some ideas and suggestions for an electronics symposium that I am going to attend.Here is a link to the site

http://www.drestein.in/

I would like some ideas on what to do for some of the events hosted there. comment even if the Ideas you've thought of are heck crazy!

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Non Stream Link Motor Test 1 Depronmotortest1.wmv

Non Stream Link Rudder / Elevator installation & Motor Test  2 Depron Rudder/Elevator servos

Installation of Rudder and Elevator Servos..... and

Test of Motor Mount for Depron , not full power yet - as no multimeter was in circuit (max 10A before burnout ;-)

Custom Depron Vice.............

Horray.

Today i just received two packets in the mail. In one of these was an lcd which i bought for less than 5$ incl. shipping, while in the other was a 434 mhz rf link kit, which cost around 8$. So far i haven't tested either, as i received them moments ago. I will soon be using them though, proabably to make a custom arduino rf controller, i only need a second arudino..

 <== picture right here

Here i present my Arduino XBee Serial Multiple Servo Solution

Here is a Sketch of the system (apparently sketching your ideas is the thing todo...........)

I thought i was home and dry with my Depron1, Depron2 project untill i found out that mixing serial data and servos (ie >2 servos) with the Arduino environment is just not possible (due to the complexity of the multiple interrupts).

Intro

I decided to make a mini sumo robot a few weeks ago instead of doing an obstacle avoider. Turns out that once you think about it, mini sumo bots and obstacle avoiders are pretty much the same! The only changes I would need to make would be to the code. Great! Sumos can also double as line followers. So in short, they're pretty versatile. Here is an image of most of the parts that will go into this sucker. 

Picture

Project "Depron" took one leap forward , with the successful implementation of the XBee Pros and Servo mechanisms.

This is a key part of the project, which means that i can now rest easy that i have 1.5Kms of control over the plane.

It was no easy task to find compatible libraries for the Serial & Servo control,

In the end a combo of the NewSoftSerial.h and ServoTimer1.h was the perfect match for the XBee Pros, the whole system is running rock steady @ 38400Baud (@momo).

My current project is a start here robot with .NET Micro Framework using a FEZ Domino board from GHI Electronics. The FEZ Domino is pin compatible to Arduino, but has more processing power (ARM7 core with 72MHz clock), 3 UART, 2SPI USB host and micro SD-Card support.

After building some Arduino based robots I think it's time for a change. Before I start build the robot itself some testings were needed to find out if the FEZ Domino is a worthy successor for the Arduino and can I use my existing Arduino shields.

Hey guys,

Gareth and I were talking planes and UAV's the other day so I posted a quick video for him to watch showing one of my planes and why I thought it would be a good choice for a UAV. He suggested I post it for all, so I am.

The plane in the video is a Sky Surfer from Banana Hobby. Now, I personally hate Banana Hobby, but I must admit that this is one great deal on a plane... $160 gets you the plane, TX, charger, a brushless and an extra battery. The Sky Surfer is a rip-off of a Easystar which has been around for years.

so, im designing/ building a uav. today i should be ordering parts. it will avoid obstacles, land itself on walls when the battery's too low, run ino walls to land, and be able to push itself off walls. it will not use a microcontroller originally, but ill add one over time, along with other fun things. heres my cad-