Quote from: izmile on August 30, 2010, 05:15:48 PM
Also have a look at http://home.nordnet.fr/~fthobois/anglais/engl-index.htm   (100% scratch built TX and RX)

This link has been posted by someone previously in this forum

Thanks Ismail Bhai. The site is a bit old but is a good resource though.

Quote from: udawatabhimanyu4 on August 27, 2010, 02:22:14 PM
@Vinay: Thats a nice comparison. I myself am a football player
If the budget permits, i will buy the 1 mile module.

@saju: I am not that good at PPM circuitry. But will look at Sai
what he has to offer. Any info on PPM (basics) would be welcomed.
About the joystick, i am already prepared to make it. It will be using
tilt accelerometers (and hopefully gyro) from analog devices^TM
So that the control would be like real world.

@dileep: The link is very nice with lots of pics. I think this is what
saju has used to make his convertible 2.4 Ghz Assan Radio. (no offence!)

Its PWM; not ppm....

People are using XBees often instead of regular RC stuff, it seems.

http://diydrones.com/forum/topics/quadrotor-xbee-replacing-rc

Thanks Anwar...
We are working on the theory of interfacing of the xBee
modules with Arduino and the joystick. Hope to find a solution
soon. I will post our progress; if we make any

For Joy Stick
http://www.arduino.cc/en/Tutorial/JoyStick

For Xbee
http://www.arduino.cc/playground/Shields/Xbee01

Hi all,
After two months of intense research on the internet, we have decided to purchase the following components from Sparkfun Electronics:

Serial No. 1 2 3 4 5 6 7 8 9 10 11 11 12 13 13 14 15 16 17 Total Shipping

Products XBee-PRO 802.15.4 module w/ wire antenna (Series 1) XBee-PRO 802.15.4 module w/ RPSMA connector (Series 1) 2.4 GHz Antenna Arduino Uno Arduino Fio XBee Explorer USB Breakout Board for XBee Module 2mm 10pin XBee Socket Thumb Joystick Breakout Board for Thumb Joystick Micro Maestro 6-channel USB Servo Controller Serial Servo Controller TLC 5940 - PWM Driver Triple Axis Accelerometer Breakout - ADXL335 Triple Axis Accelerometer Breakout - MMA7361 Gyro Breakout Board - LPR530AL Dual 300°/s AVR 28 Pin 20MHz 32K 6A/D - ATMega328 ATmega328 with Arduino Bootloader Polymer Lithium Ion Battery - 900mAh

Unit Price Rs. 1984.00 Rs. 2108.00 Rs. 325.00 Rs. 1353.00 Rs. 1152.11 Rs. 1152.11 Rs. 136.22 Rs. 46.18 Rs. 182.40 Rs. 90.04 Rs. 921.23 Rs. 828.87 Rs. 274.75 Rs. 1152.11 Rs. 921.23 Rs. 1383.00 Rs. 198.56 Rs. 253.97 Rs. 413.28 Rs. 15,000 Rs. 4,000

Cannot decide between S. No. 11 and 13. Is the Polulu's Micro Maestro really useful for RC Servo control?
Any suggestions are welcomed. If you feel like adding or removing any item, please comment...

Hi all,
We received the items from Sparkfun and xBee modules from Bangalore.
Started to tinker with the Arduino!
In between, we attended a workshop conducted by Aerotrix at BITS, Pilani.
It was a good experience on building our first aircraft model with all the theory
and formulae behind it.
Will post the work regularly from now on.

Hey everyone
Find the pics attached below and let us know what do you think:
A working DIY Radio.
Tested: range on ground - 250 metres.

Wow, looks good! 

Are you planning to use it with an airplane or a surface vehicle?

Thanks.
Absolutely an airplane.
You can see a bldc in the pics without the prop.

Oh, right. The centered joysticks had me confused! Does the throttle stick maintain its position or does it have a 'centering' spring?
How many channels does it have and how much did it cost? Sounds like a good project. I'd like to suggest it to some of my juniors.

The joystick is a spring-loaded one meaning it comes
to the centre after released. Its coded to be Zero Throttle in the centre.

The datasheet says 12 channels. But, i guess, if you are efficient
in coding you can squeeze in a bit more.

Cost - The radio or the full setup?
xBee Pro Radio Tx-Rx is about 4.5k total with antenna.