@HazardMind, thanks alot for that answer.

Guys, you would not believe what i found.

when you use the calculator in Windows, and divide 22 by 7
22/7=3.1428571428571428
When you use python and do the same,
22.0/7.0=3.142857142857143

When you do 22.0/7.0 on an Arduino mega:
22.0/7.0=3.142857074737548

On a Due,
22.0/7.0=3.142857074737549

On a Stellaris Launchpad,
22.0/7.0=3.142857074737548

Why are these values different than what the calculator and Python3 calculates? why these errors? Why are the Boards giving values so different?

Regards

Ok,
So i have been wondering about this for a long time now.

Whenever i want to divide a floating number with another, for example
float a=1024.0/3.0
or float a=1024.00/3.00

a is at most only 2 decimal places. What if i want larger numbers, as in more decimal places in the answer? what do i have to do for that?
 
PS: i have tried it on the Dues as well as Uno, they both behave the same.
Regards

I had thought about this a few days ago, in some context that might sound very idiotic,

But i think, if we have 2 separate microcontrollers, or arduinos, communicating through serial or through some other interface like I2C,
we can have a phase shift between the PWM signals.

I havent actually tried doing this, and i just *think* this might work. It might also sound idiotic, but i am kinda new here.

Regards

@eried,

Thanks a lot...! Problem Solved.
Uninstalled, Rebooted, reinstalled and it worked like a charm.

Regards

Hey eried,

By mistake i installed both the non-java version and Recommended version of your Enhanced Arduino 1.0.4 Package.
After a restart, one of the versions lost the Arduino icon, and shows up with "Unknown File" icon instead.
I have removed both and installed each one again, but i cant seem to get my Icon Back...

What to Do??

Regards

The Icon is like this, and it is the same way in Program Files (x86)/Arduino folder.

EDIT: I am on Windows 7 x64. Please Help.

@retrolefty
I dont know if this would give you an idea, but it is bigger than those Micro Helicopters.Link below shows a heli identical to the one i use.

http://www.ebay.in/itm/BIGGEST-RC-HELICOPTER-WITH-GYROSCOPE-Volitation-3-5-CH-Double-Horse-/200891823488?
pt=IN_Toys&hash=item2ec615f580&_uhb=1#ht_1022wt_1139

I have not worked on many projects that involve moving objects like RC Cars and specially not Helicopters. Though have built a Finger Print Attendance logger, a few screen displays, and am currently also working on Tetris on Arduino. A few LCD based stuff too, but nothing original. Wanna learn here...

@mauried,
i too was thinking of this. I assume that to find the CG or how and where the weight should be distributed, i would tie a thread on the Main shaft and see how the helicopter is positioned. That would give me a fair idea of where the CG lies i guess.

Regards

And what if i use two accelerometers? one for Horizontal and one for Vertical? would that do??

Regards

EDIT: Dont know where my mind was while posting this in the wrong forum, Moderators, please Move it to the Correct One!!
Hey guys,

I have  a Coaxial Helicopter, essentially a cheap one, with 2 Brushed motors on it for the blades and another brushed motor for the Rotor Blade.
I brought it to convert it to an Arduino controlled Helicopter. Money was an Issue a few days ago, but scince its my b'day, i can ask for stuff from my Mom and Dad now

SO please help me with what i need to do and get...
3 Brushed Motors, 3.7V and i dont know what current Rating they have. It would need 2 Brushed ESCs, like the Turingy 20A Brushed ESC.
Tell me if i am correct.

For Stabalisation, do i need both a Gyro and an Accelerometer? A 3 axis accelrometer like MMA7361, would it work?? Why do i essentially need a Gyro sensor??

Also i can control the Heli with either Infre Red or the the NRF24L01 RF Transcievers.

Is all this OK? what else should i be needing?

Regards

@retroplayer,

I was thinking of using a characted lcd because i did not have a Graphics LCD on hand at the time....
I am just gonna buy one and go for it anyways....

Regards

@Retroplayer,
i am pretty sure KS0108 controllers are not used in Character displays, in the above posts, i was referring to KS0108 based graphical LCDs only. Sorry if it caused confusion....

also, What does writing to the CGRAM on the fly mean??

Regards

Sorry for replying so late, had my exams to write,

But i was thinking, a 20x4 HD44780 display, can be thought of as 2 16x2 HD44780s put together right? so wont here be double the memory available for pre defined characters?

Also, is it possible to have control over each and every pixel of a HD44780 based display??

Regards

Bump...

Thanks for the replies guys,

the Custom Characters possible on the HD44780 display make it a problem to be able to define all the Tetris pieces and their orientations.

Would a KS0108 display support full fledged Tetris to be played on an Arduino??

Regards

the LCDBitmap Library runs flawlessly on the DUE

Located at
http://code.google.com/p/arduino-lcd-bitmap/

Hey guys,

I wanna modify an RC Car using an Arduino, so that it can be controlled using ab XBOX 360 wired controller.

The DUE can act as a Host device for Mice and Keyboards, but is it possible to use the DUE as a host for the XBOX 360 controller?? if so, HOW?

Regards