Let's Make Robots!
Price: $1.95 USD

 Collected by one member
This plastic roller ball is a great third contact point for a small, differential-drive robot. They are sold in threes. Read more
Price: $8.45 USD

 Collected by one member
This tiny board is an easy way to use Toshiba’s TB6612FNG dual motor driver, which can independently control two bidirectional DC motors or one bipolar … Read more
Price: $14.95 USD

 Collected by one member
This high-quality metal gearmotor is a compact (1.26" x 0.63" x 0.63") motor with an enclosed 24:1 metal gearbox. These units have a … Read more
Provides better performance than normal drivers
I am participating in Google Science Fair 2013. So, I thought of sharing my idea. A simple idea. I have modified loudspeaker drivers in two ways. The benefit of … Read more
This is not the first robot I made but the first one I was successful with programming in RobotC. The second video I used the sample program's and blutooth with a … Read more

Live video streaming for remotely operated robots, solutions?


I recently tried a small videocamera like this one, and i must say that, despite the low quality, they do a decent job, except when heavily shaked.

Now, the main problem is that they have a limited range, and that they have a radio signal on their own, separated from the main robot control. This means that you cannot make a program that behave based on the images, and that the two radio signals can have different ranges.

A snake robot. Serpentine locomotion and other snake gaits read from a micro SD card. Obstable avoidance and eventially path planning.
Using a
This is our entry into the PIC32 challenge. Please check it out on http://www.pivut.com/snake.htm and VOTE FOR US before 2/10/09! It is our first robot. All of the … Read more

COSMA - Update 1

In the meantime I named the robot astronaut Cosma, a maiden name, ancient Greek for Cosmos. Below you'll find a more specific design study. I think I will 3-D print the main body and the head. I've furthermore tested a FSR (force sensing resistor) as a kind of pain receptor and the ArduEye.

Reading Words off Pages and Walls using OCR, Start of Indoor Localization

Today my robot read its first words with its own eyes!  from around 8ft away!

Got Tesseract OCR going on the bot.  Its reading words close up and from distance with large fonts.  This will be the start of my indoor localization system.  Bot will be able to determine what room it is in and where it is within the room to some degree, by remembering what is written where in the house and using it as landmarks for knowing its position, with a little geometry.

I'll post some video of this in action as soon as its polished.

Wild Thumper Controller - Packaged Software has Issues

If you are trying to used the Dagu motor controller with their Wild Thumper vehicle, which is great, but can't get it to respond properly to a RC tranmitter, make the following changes to the software. Get off D0 and D1 and move to D9 and D10, which are PWM channels. You don't want a PWM repetative pulses (every 22ms from a Spektrum transmitter) to clobber your serial interface when loading programs. This is why you get a sync error from the compiler if you follow the manual.

Software PWM

I was hoping to avoid wrighting my own software pwm for the pic but it looks like i've arrived there.  the motors and tracks I hot glued toghther don't drive straigh so the only way I can think of fixing it is to use PWM to slow down one motor.  I know I could use the one hardware pwm to slow down just one motor but thats going to be used in the future for somthing else so I have to create the pwm myself in software.

Service Droid

Working for DAGU means I need to try and design products that are not just cool to look at or play with but are also affordable and easy to use for the beginer. Sadly this balance is not easy to acheive. Usually more fun / cool functions means more complexity and cost.

Tank tread vs 6 wheel drive vs WTF!, which is better?

I notice that most people on this site like robots with treads. I used to be a fan of treads too but after seeing videos like the ones below I think there are better designs out there. Even 4x4 does pretty well when you look at rock crawlers like the ones in the 4th video

What is your opinion? What is the best or the coolest design you've seen for an all terrain robot?

Have you seen a design that is just "too wierd"?