Let's Make Robots!

Salvaging components

Hello, I'm new to this site and to robotics, it looks like a great place to find knowledge and inspiration about robots so I signed in.

   I am currently waiting for an arduino board to start experimenting, so I am trying to salvage parts and componets from broken electronics (as much as possible)  to save some money. 

Computers stolen from DAGU

Just letting every one who has placed an order recently with DAGU know that their order will be delayed as our office was broken into again and most of our computers were stolen along with the work van. Since Claudia's computer was one of the stolen computers you should email her again with any recent orders made using the subject:"ORDER MADE PRIOR TO BREAK IN" so we can check it against what has been sent. We will have new computers up and running soon so there shouldn't be too much delay.

Sorry for the inconvenience,
OddBot (aka Russell Cameron)

10% Off Coupon for LMR Members

Hope this is the correct place to post. If not let me know.

I would like to do more by way of discount, but I am just a small business right now. In the future I hope to be in a position to offer a higher discount. Anyway, you can use coupon code LMRmember at time of checkout.

And don't forget to submit a project to the contest at

http://arduinofun.com/blog/2009/11/01/fun-with-arduino-contest/ 

Prizes:

Arduino Contest

I hope this is the place to post this contest to within the forum. If not, just let me know.

http://arduinofun.com/blog/2009/11/01/fun-with-arduino-contest/

 

Arduino Contest: Think It – Build It – Share It!

Voltage regulator problem

Hi, i recently added a sharp ir sensor, a servo, and a picaxe 8m to my robot, trix. The power supply i made for the picaxe board and sharp ir sensor assembly was simple and should have worked i thought, it was a five volt regulator from parallax, a 9volt bettery clip, and a 3 pin header for the power out (5volt reg, un regulated 9v, ground), However when i plugged the power supply into the picaxe board, my multimeter read only like 2.5 volts across the picaxe and the voltage regulator heat sink got so hot i burt my finger quite a bit.

Need Help for AGV?

i'm working on AGV project rite now.low cost AGV.i'm totally dont have knowledge in software part that is programming part?especially to do the coding for the robot.but for hardware part is not a problem to me.can somebody help me with the coding part?i'm using atmel microcontroller and will attach with stepper motor.for sensor i'm using ultrasonic for obsctacels sensor.

arduino functions

Calculon is discovering the wonders of arduino programming, and he is confused with the function (subroutine) action. He defines and declares a function, but nothing happens. Behold the simplified code:

void loop(){

   goMotor;   //call the goMotor function

}

void goMotor(){    //activate dc motor via h-bridge

digitalWrite(4,HIGH);
digitalWrite(5,LOW);

}

Shops for Aussies and Kiwis

Hey everybody out there in Australia. There are many shops out there that you can go to.

- www.robotgear.com.au (theres picaxe + arduino + some solarbotics + heaps of polulu + tank tracks +gearmotors +chassis and other totaly AWSOME stuff) and if you need other stuff, email them and u get them in like a month.

- www.robotics.com.au

- www.robotparts.com

Hooking up a Schmitt trigger (74HC14)

I need to hook up a 74HC14 to clean the signal from a QRB1134 IR sensor. I think I know how but I need to make sure. Could it really be this simple:

*Connect pin 14 to 5V (from Arduino)

*Connect pin 7 to ground

*Connect pin 1 to the signal output of the QRB1134

*Connect pin 2 to the Arduino analog in

*Place a .1uF cap between the 5V and the ground wire

Here is the datasheet and an example I used:

www.robotokulu.com/ROBOTOKULU_dosyalar/74HC14.pdf