Let's Make Robots!

What should I do with my new Neato-XV14

I just acquired a Neato XV-14 Robot Vacuum Cleaner for $50.  It's owner was dissatisfied that it could not return to base from another room...  I tried to discuss infrared "line-of-sight".... then thought ... "shut-up dude, he wants to sell it!!!"  

I offered $50... and voila... one fully functional Neato XV14 in my posession...

Help to convert a blank ATmega328 into a speech synthesizer chip for under $5

Some time ago when I was looking at the cost of speakjet and other hardware speech systems I remembers that back in the 80's there was a program call S.A.M. (software automated mouth) that ran on my Atari XL. It was also available for the C64, Apple and possibly some other systems.

The Raspberry Pi Powered PiBot

                                                                          The PiBot Website

HexPi - video of trembling legs

In case anyone is interested, I've an embedded video of HexPi with the better mousetrap servo tester controlling his front legs.


HexPi Calisthenics

It shows quite clearly how poorly some of the MG-995's behave - even with very filtered power.

I'll try to embed the video here, not sure if it will work (never tried to before) ... nope, did not work.


Dagu Mini Driver and Raspberry Pi

Hi, I have looked at all the instruction manuals I can find ( I may have missed one) for the Mini Driver, but cant seem to find out if, the Dagu can comunicate with a Raspi via the ISP ( instead of the USB) . Anyone know if this is possible ? if so could you please tell me the pin out ?

-- Alan Turing --

(Not really Him BTW)

How to send serial data after collecting data from different functions


I need some help regarding my subject. My hardware is Arduino UNO. My setup is as follows.

I have 3 or 4 functions which collect GPS, compass and sensor data's. As telemetry i out put the data via xbee module wirlessly to my PC. My issue is when the data comes so fields missing due to delays on some operations. Example format of the data is lat,lon,heading,temperature,rpm. which is output from a serial.print

But when sometime due to some processes the some data misses. so tell me a way which i can do this much affectively.

How to calculate torque of dual (or more) servos

If  you have two servos that produce 25oz/in torque each, and you hook one up to pull the arms of the other, is there a formula that can predict the total torque of the system?


For instance here is an image I found of 2 in-line servos:

Dual inline servos




Bought a bunch of stuff... totally lost lol

Hello all! Ive owned an arduino now for about a year. Ive been practicing in and out but I wanted to get seious about a project. Im looking to assemble a Start Here style of robot but with an Arduino Uno for a brain. Currently i have...



SeeedStudio Motor shield

a morphibians RC toy (essentially the same base as SHR)

mini breadboard

all the connections that should be required

IR sensor

a few photosensors.



Wild Thumper 6WD with Motor controller

Hi, I'm just done my assemby and wiring of my wild thumper 6wd !! I'm sure everything is correct !!

But the problem is , I have no programmming knowledge at all !!

Can someone pls give me the example of the code for wild thumper 6wd??

Thank you !!!!!

Having Trouble with Wild Thumper and T'Rex Motor Controller

Long story short...

Two T'Rex motor controllers have stopped working. The first one failed without any obvious cause. The second started smoking while I was driving it in my back yard. Among the possible factors there are at play, I believe that one factor is a bad motor on my Wild Thumper, and another is that the fuses on the TRex aren't functioning properly. Is there a way to reset the fuses or clear the motor faults? If you have any advice or ideas, please share them!