Let's Make Robots!

Simple Map robot



I have arduino duemilanove, ultrasonic sensor , geared motors with wheels. I wanted to make a room mapping/ navigating robot to go from one place to other.

 Even if it doesnt learn the environment in real time ,is allright. I just want it to store a simple map of square room and go from one square tile to the other.


Please guide me.




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Bajdi thanks for the link

Kariloy... yep... you are right...I forgot to mention that, I have l293d drivers.. and yes I will boost my basic knowledge..  :)


will post picture after I finish my robot.

Deseo saber si hay alguien en esta pagina que sepa Español. Me cuesta mucho trabajo leer en Ingles. tengo varias preguntas y preferiria hacerlo en mi idioma. Por favor, agradeceria mucho que me lo hicieran saber. Gracias.

Seems like you're starting from near zero knowledge, am I right? First robot?

Regardless, you need to get some basics on electronics first, also programming if you don't know any yet.

1st-  Start simple: Build the obiquitous obstacle avoider which can be later upgraded.

-- If what stated above is your complete parts list, there is at least one big part missing: motor driver. This is needed to control the geared motors, which you can't just directly connect to the arduino.

--- you can either shell out some money and buy a motor shield that plugs into the arduino board, or just make one yourself. In the latter case electronics knowledge will be required.

As a side note, a micro servo where to mount the sonar module may be useful later for sweeping (sort of like a radar) and help with future mapping.

2nd- Once you get a basic obstacle avoider going you can start thinking about the mapping, and as Bajdi said wheel encoders will allow you to control/measure travelled distances. Also probably you'll be wanting some form of persistant stored of those maps. I myself never delved into mapping so I can only suggest you search ( e.g. google ) on the subject, I'm sure there will be plenty of examples to choose from.

There's lots of details I don't mention here, however the main points I want to get across are:

- Learn your basics (electronics, programming, etc).

(NOTE: This point is VERY useful for asking specific questions, because nothing upsets more a potential helper than a person that can't help him/her self. -- I've highlighted some keypoints where it might be useful for you to do some research.)

- Start small & incrementally advance your project as you build your own knowledge