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16  Using Arduino / Project Guidance / Re: project ideas and help for a innovative science project on: October 28, 2012, 05:54:12 am
I am a middle school student and have some  experience in robotics, I own 2 arduino's(pro minis) some brushless motors,ESCs,11.1v Lipo batteries and very basic cutting tools. I own these items because I wanted to make a quadcopter which I didnt make because of certian problems with the radio.
I also own a sparkfun 6DOF IMU.(i2C)
17  Using Arduino / Project Guidance / Re: using turnigy 9x 9 ch 2.4ghz tx, module and 8 ch rx (v2 firmware) with arduino on: October 28, 2012, 05:48:22 am
I have a Sparkfun 6DOF which is supported by all quadcopter softwares and dosnt require any special trick to make it work.
If you are looking for cheap stuff go to ebay's chinese sellers. But buy original smiley-wink
I am also building a quadcopter.
18  Using Arduino / Project Guidance / Re: project ideas and help for a innovative science project on: October 28, 2012, 05:32:19 am
Any waste management ideas or projects?  smiley
19  Using Arduino / Motors, Mechanics, and Power / Re: Cant afford a motor controller want to make my own fr 10$ on: October 27, 2012, 12:09:12 pm
I already have those motors(pitsco tetrix 1amp motor) which are good. I dont want to buy servos.
Other big combots have used big and costly motor controllers which i cant afford.

20  Using Arduino / Project Guidance / Re: Ground base control/live stats system on: October 27, 2012, 10:36:29 am
That's what I wanna know. I think Arduino GPS does support google earth API?
21  Using Arduino / Project Guidance / Re: project ideas and help for a innovative science project on: October 27, 2012, 10:22:23 am
No no, I dont mean to waste anyone's time, all I want is a good idea. smiley
22  Using Arduino / Project Guidance / Re: project ideas and help for a innovative science project on: October 27, 2012, 10:04:33 am
Great ideas both! I love them; a system which will turn of lights if we dont move for a while smiley excellent and
metal detector cheap one? HOW? help me

Thanks.
23  Using Arduino / Project Guidance / Re: Can I make an Arduino control an arduino rc car? on: October 27, 2012, 06:52:27 am
I was looking for this.. Thanks for the 'Sparkfun' link. smiley
You guys are greaaat smiley-wink
24  Using Arduino / Motors, Mechanics, and Power / Re: Cant afford a motor controller want to make my own fr 10$ on: October 27, 2012, 06:50:00 am
Can it be controlled through RC signals which come through receiver?
Thanks !
25  Using Arduino / Project Guidance / Re: project ideas and help for a innovative science project on: October 27, 2012, 06:47:20 am
Umm, I actually mean something that saves money and is usefull in every normal man's life. I am not selling it but I want to design something really nice and helpful.
That's what I mean.
Maybe a survilliance robot but that will for surely cost more than 200$ atleast. I want to make everything myself from circuits to body(but not motors and wheels xD)
26  Using Arduino / Project Guidance / project ideas and help for a innovative science project on: October 26, 2012, 10:44:37 am
hello,
I am working on something very very innovative and cheap. have any idea to guide me?
like 
converting bioenergy-->electrical energy?
solar powered rc lawnmower?
blind persons help stick(with sensors to help him walk and move)?

please help me.

Thanks,
Rahul
27  Using Arduino / Motors, Mechanics, and Power / Re: connect l298 motor controller ic with rc receiver on: October 15, 2012, 06:09:45 am
I know that but I dont know how to use that? Please read my whole question completely.

Thanks
28  Using Arduino / Motors, Mechanics, and Power / connect l298 motor controller ic with rc receiver on: October 14, 2012, 10:23:24 am
Hello, I have a normal RC hobby receiver which has 3 pins per channel-
vcc,gnd and PWM.
I know that I cannot connect a high power motor(brushed) which also requires large amount of current directly to a receiver. I read that l298n can supply 4amp per motor which is pretty good for me. But it has so many input and other wires. I only need three wires basically for connecting to my receiver as mentioned above. and two other wires for connecting a brushed dc motor. also i need to supply current/volage(battery) seperately - so two other wires for battery terminal. so it must have 12 wires-
1) PWM for first motor(to be connected to receiver channel1)
2) PWM for second motor(to be connected to receiver channel2)
3) VCC for battery
4) GND for battery
5)VCC for first motor(to be connected to receiver channel1)
6)VCC for second motor(   "      "         "         "   channel2)
7)GND for first motor("     "      "       "              channel1")
8)GND for second motor("     "      "       "              " channel2)
9)OUTPUT1 for first motor
10) OUTPUT2 for first motor
11)OUTPUT1 for second motor
12) OUTPUT2 for second motor
This plan is for 2 motor h bridge. Also If I want to supply 12v per motor which battery should I choose if I am connecting 4 motors(each motor requires 12v and 1+amp current). 2 motors per channel.
will the current be divided? what will happen? please tell me? I have difficulties in reading the datasheet. Also will the voltage be divided?
What to do?

Thankyou in advance,
Rahul Vyas
29  Using Arduino / Motors, Mechanics, and Power / Cant afford a motor controller want to make my own fr 10$ on: October 08, 2012, 10:54:28 am
Hello once again,
I am making a RC robot..And you know I cant afford a sabertooth worth 59$..I want to make my own..I dont want many features but just want the DC MOTOR (link- https://c10645061.ssl.cf2.rackcdn.com/resources/dcdrivemotorspecs.pdf ) work like any normal servo.

I mean DC motor can't be connected to the receiver because of two reasons
1) It requires more current. mine requires 1amp according to the specs.
2) receiver gives out PWM or PPM? I think pwm..

So, I know sabertooth is perfect but I can't afford it.
What do I do? I an spend about 10$.

Actually I am building a stair climber robot/ combat robot like this-


Please help me urgently.
Thanks,
Rahul
30  Using Arduino / Sensors / How to obtain values from my 6DOF? on: October 04, 2012, 10:54:19 am
Hello Guys,
I am new to this but already have much stuff. I am  having a 6DOF IMU - https://www.sparkfun.com/products/10121
But unfortunately, I am confused in how to actually get values from the sensors - Gyro & acceleration sensor.
After reading this guide (ONLY page1 smiley-grin) - http://www.instructables.com/id/Guide-to-gyro-and-accelerometer-with-Arduino-inclu/
I found that I cannot follow it since it is using a very differnt sensor the Razor 6DOF from sparkfun..different in the sense of the no. of pins it got.. so many.. my got mainly 4- SCL,SDA,+3.3v and Gnd pins.
How will I get the data and will get it in which units.. please I want to learn from basics and the physics involved..
Basically, I am planning to build a autopilot system...but I will go from the basics evenif it takes me 1 year or more. smiley

Thankyou,
RahulVyas
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