Let's Make Robots!

Clean navigation using IR sensor

Anyone willing to give me a hand with this code please feel free to jump right in.

I have spent any hours trying to get this to work. I sure have gotten closer but the bot seems to get stuck n reverse for whatever reason. He will stay in reverse untill i bring my hand close to the sensor and then move it away very quickly.

He then continues forward. Sometimes it seems like he wants to turn toward the object he sees

Picaxe 28x1 with sharp GP2D12

I have made many changes to Fritsl's code, Some changes I understood and others I did not.

 

 

Spielwarenmesse International Toy Fair

 As mentioned in my new blog, Jack and I will be attending the Spielwarenmesse International Toy Fair next week. We will fly to Nuremberg, Germany on Tuesday (2nd) and will be there till the 9th. Our stand is No. H6 / A-32.

If anyone wants to visit us but doesn't want to enter the fair then we will be staying here: http://www.hotel-aurora.info/


 

 

Frits F*cked up!

Did anyone else notice this? Start here... Anyone?

Frits, if there is one thing that pic chips don't like, it is static! You know those silly wrist straps? So why, why in the world, would you take pictures of all your parts for the start here bot on top of styrofoam?!?!?!?

I personally can not think of a more static-friendly item then styrofoam. Why are you leading our LMR kids on the wrong path?

SHAME! SHAME!

Hooking up the sensor for Start Robot

Note, this description is vague, but I'm trying to describe what I'm asking the best I can.

Programming an atmega with the Arduino IDE

Hi guys.

from this post (http://letsmakerobots.com/node/5593 ) by Rudolph i learned that you can program an atmega with the arudino IDE even if you haven't got an arduino board.

What i have here with me now is an atmega328, a serial programmer (precisely this one: http://www.sparkfun.com/commerce/product_info.php?products_id=14 ).

Max voltage for a motor

Hi,

 I have some DC motors disassembled from a printer (HP Business Inkjet 1000) and need to know their working/maximum voltage. Searching the motor's model name in google revealed nothing.

The printer works on 32 volts (!), but I doubt all that juice arrives to the motors.
In its current condition, there's no chance to test the voltage while printer is running.

Besides a trial and error approach that might fry the motors - How can I find the correct voltage for each motor?

Robot supplies in Omaha, Nebraska USA?

I am a Beginner and I am trying to find places to get stuff in the omaha area so i can start building the beginners robot

Dual Y-Bridge (was One and a Half H-Bridge)

I had an idea tonight that is either inspired... or stupid. Please help me determine which. ; j

I was thinking about using one of my new Picaxe-08 processors for a project. They only have 5 I/O ports, three of which can be either an input or an output. However, for my project, I wanted to be able to control two motors and two sensors. Since traditional dual H-Bridge designs would require four processor outputs to control two motors with forward and reverse, that would leave only one I/O port left. Boo hoo.

Wifi logic robot

So I was thinking, What if robots didn't do the "thinking" right there but sent it to a pc set to run the logic of the robot and then sent it back to the robot via wifi? I think it would be and faster and more powerfull then doing it on a tiny microcontroller.

Any ideas?

20Amp Motor Driver/Controller

I am looking for a 20 amp motor controller/driver. I prefer an IC, that way I can integrate my own driver circuitry, but if it is cheap (under 50) post it. I'd prefer if it could provide 20 amps per channel. It will be operating on 12VDC.