Let's Make Robots!


My first Arduino SHR


Hello LMRians. I'm now super exited as most of my robot parts have finally arrived!

These parts are going to be used for my first SHR. The brain, if you would like to know, is an Arduino-based microcontroller.

It is indeed the Ubotino Controller V3 and measures at a mouth-gaping (for me that is) 5 x 5 cm!

This board can be bought by our well known Ro-Bot-X at his online shop : http://robotxdesigns.ca/

Here are some very bad pictures of the parts :

1. Ubotino Controller V3



So i have a IR detector and it is hooked up to an arduino i have programed it with the help of this blog http://www.arcfn.com/2009/08/multi-protocol-infrared-remote-library.html i am doing the example that is named " How to recieve" 

Problem: whenever i click a button on my remote the number 0 apeers on the serial monitor. What does that mean?

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Battery help



What is the difference of a 9v battery and a battery holder that can hold 6 aa batterys 3 on each side? (it comes out to have 9v) Which one is better for the arduino or any other microcontrollers?? 


Hellow there LMR i geus i haven't made any robot if i hadn't found this webpage ;) so here i am with my first robot. its a pretty basic idea, but for me ofcource … Read more

Value changes and Arduino.

I hope you can help me - I¨m sure it's not too complicated, I just know yet how to ask my Arduino to read it. 


So, I'm playing peek-a-boo with my robot (arduino, light sensor and a motor)

and I need to tell my arduino to read that:

If the value of the LDR (which is usually around 600) goes below 100 (for more than 2 sec) and then above 400, it should trigger the motor. 


Thanks a bunch, 

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How did you cope with the Arduino Mini 5V

The Arduino Mini and a bunch of other electronics require a 5V power source. The only way I can achieve that using standart batteries (AA, AAA) would be to use a power regulator (preferrably a low-dropout power regulator which I can't find on robotshop). So how do you suggest I get my 5V? It doesn't need to work with standart batteries - as long as the solution is cheap. What other online store would be good for a low-dropout voltage regulator? 

P.S.: This website is awesome!

Arduino mini pro question regarding pin output voltage

If I power an Arduino Mini pro with a 6V power source through the RAW pin, will the digitalWrite(pin?, HIGH) output 6V or the traditional 5V. By the way, I have the 5V Arduino Mini pro model. 


This might be a well known site and tutorial, but I just stumbled across it and would point out that this is an amazing site for anyone interested in Arduino.
The tutorials are well written and packed with examples and information.
So if you’re starting up with Arduino or a more advanced user, this is the link to add to your favorites!


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Kinda stuck again

OK I have re-writen my code and now I am having a problem where my left side motors are not being driven.I know it is not a hardware problem. I upload an older version of code with out the scanning portion and everthing works.I have included LEDS on the proto board to see if I am getting comands from my uC and right side is working but not getting anything for the left. the new code is basicly an addition to the old. I just added the servo and varibles so it can look left and right.

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Multi-sensor obstacle avoidance


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I got some advice from ignoblegome but I would like to openly ask which would that "next level" may be. I have seen several things out there:

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