Let's Make Robots!

Arduino + a doorbell's wireless modules

hello, hope you had a merry christmas, and will have a happy new year!

I found a wireless doorbell, and i would like to know it it would be possible to attach the button of the doorbell, to the TX pin on the arduino, and the receiver to the RX pin, sorta like this:


I think i would then be able to serial print what ever i want, and serial read it with the other arduino. say controll severall motors, even if it just has one button, would this be possible?

LCD03 and PICAXE 28 pin Project Board


Does anyone know how to connect a LCD03 to a picaxe 28x project board?

EDIT: I've already connected the LCD successfully to the board :D.

super cheap video recorder


Anyone tried one of these (or similar):


I am tempted to get one. Around $8 to the US. I would just about double my investment putting a micro SD card in it. I would really like to find it as a component that cheap, but I haven't seen one. I guess I could rig a servo to press the power button and then the record button.

An official LMR robotics comp.


Most of you know I've had a lot of interest in my cross the gap challenge.


So I asked Frits about us having a "Official" LMR online competition at the end of this year. He said he is interested, but has too many obligations to be personally involved beyond giving the final approval, and adding stuff to the home page, etc.

If you want to be involved with exploring this concept, we will have to come up with a new game, and write up the rules, and figure out who's judging the video's, etc. I can get prizes donated.

Mosquito killer robot

I am from south India My neighboring village is suffering from mosquitoes

So you love tracks but...

.. you are not able to find the rigth size, or...

you have enough time but not enough money for them, or...

you need real though ones, or..

you just want to enjoy with new ideas, and..

you are able to build..


then  maybe this link will provide some ideas to make you happy ;)




I specially liked the hinges ones.




Btw this is my first post so if is misplaced plz  just move it. And pardon me my bad english :)

Basic Triagulation Positioning System

3 Friends and I are building an autonomous tennis ball collecting robot for a 4th year design project for our undergrad.

We need a way for the robot to keep track of its position on the tennis court (in doors) and we are thinking of using 2 beacons to emit signals with a receiver on the robot. Has anybody done something like this before? Has anyone heard of pre-packaged solutions that do just this? A USB module would be ideal (we are using a netbook to control the robot), but we are not at all opposed to building the positioning system from scratch. 

XMOS XK-1, configuring to work with HD44780 LCD.

Well this is the first actual hardware I'm going to interface! (I tried with my color LCD.. but when that failed.. figured I should start a bit more simple)

 The code is borrowed from a MIDI Synthesizer project, I just took out the LCD part, along with the buffer code. He was using the XC-1, which is just a 4-core version of the XK-1. The code should be fairly easy to implement, but I'm afraid I'm missing some of the basics when it comes to the XMOS pin usage. (I've gone through the tutorials and understand them for the most part)


LCD and picaxe

I am just beginning to research lcd boards. I have been told to get the 16 x 2 Alphanumeric LCD Module,  would this work, (sorry for font) http://www.robotshop.com/parallax-2x16-parallel-lcd.html  



Does anyone use Roborealm for machine vision? I just want to know if it's worth buying it or if there is a free software of the same sort?

Flying sphere

The japanese have done it again. This time it's a flying sphere. I want one!

Check it out:



Finaly, after years of waiting, the killer app is here: ArduinoDroid an app that allows one to program an Arduino board from a tablet or (some) phone. Yeah, now you can pack light for that robotic contest or conference, no need to carry the whole laptop, just a tiny 7" tablet that you can also use to read, watch movies, play games... or quickly tweak your sumo robot's code.

Personal assistant robot

Hi all,

I have plans for a robot for a college project: in short, this is a personal assistant robot. It should be able to use Wolfram Alpha (just like Anna) to get information on spoken search terms (I.E. voice recognition) and output them using text-to-speech. This is all for now, as I want to have a working base that I can develop of my own accord. 

voice recognition robot

hi  i am planning to do an robot controlled by voice..can any one help how do i start with..its enough if i can able to control with some 5 or 6  voice commands..pls suggest me..