i have made the quadrotor project done by columbia university as my reference.
and we tryed testing  the motor based on the circuit provided by them and the result was that i blowed up the signal generator of my college.
and then carried out the mini-lift by directly connecting the ESCs to the receiver end and the test was successful.
am having two dual axis accelerometer-ADXL213
and one gyro-ADXRS613 and also PIC18F4431....now how should i alter the circuit,since the columbia guys used brushed dc motors.
how should i connect the ESC outputs to the microcontroller .

u can see the attachment which help u to connect microcontroller to esc.

cant the interfacing carried out without using mixers??

am already having one gyro(ADXRS613) and two dual-axis accelerometers(ADXL213) ......so how can i do the interfacing.....help me out..

Read about Arduino platform... Programming it will be very easy as it is based on C...

you need atleast 3 gyros for the 3 axises too

are the quads come in rtf condition in India ?

Hi Prateek, You can contact Mr.Arvind of http://rotor.co.in/ , Hope he can help in getting a RTF Quad Fliers.

- Srihari

 I want to build a simple remote controlled quadrotor as my final year project.actaully des days i am very determined and crazy to do dis project.can  anyone pls  help me??what will b the total cost??so dat i can arrange my budget 4 dis.I need sum initiative procedure from experienced personnals...it's urgent....

If you read quad related threads on this forum, the first question is how much you want to build yourself using PICs etc (soldering your own microcontrollers and sensors) and how much you want ready-made (just adjust some software, put things together and do flight tests). 

i too got quad , codded by my self.. rock solid in the air , flies up to 40 min in normal flight and in acro 30 min

very simple hardware design and very very simple software running dual layer pid loop for rock solid stability

any if interested pls contact me through mail

hey guys !! i m designing a quadrotorcraft so can anyone plz tell me how shud i start and where would i get the propeller for anticlockwise rotation ?

Welcome to RC India

Looks like you also joined and posted a quad related question in 10 minutes There is much discussion about quads here, including offers from people who professionally guide people building quads.  Please "search" the forum, that should give you a good head start.

I am merging this question into one of the quad related threads.

okay i got it. tell me. If anyne Specialist in Quadcopter here then please tell em ATMEL AT89c51 Controller is okay for this ? can we built this quadcopter by using it ?  Please tell me . ii have to make decision for this.

No, it cannot be built using that series of micro controller as it doesn't have 16bit timer nor buit in adc port and Low MIPS all of which are crucial in controlling of quadcopter. Would suggest Atmega architecture with atleast a 32k memory ideal.

....And if you're familiar/experienced with u-controller programming, you can go for STM32 processor. It outperforms all these 8-bit processors and gives you excellent results. Debug and flash tools are readily available too.

But I know programming to make it . If i start to do work on it then Is it seems possible ? because of i have that subject in last year so I have to use it. Is it possible ? or not ?

AT89C51 For To make Quadcopter.

Iff possible then tellme from where how i start to place order for components and Make the Model.