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« on: August 06, 2015, 08:27:24 PM »
abhi599
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Hi guys,
I'm new to this forum and I would like to get help for building my quadcopter. I am planning to incorporate hc-sr04 sensor for obstacle avoidance. The doubt i have is about the platform to use, can i use a single arduino uno R3 for powering the esc as well as the sensors.
As this is my final year engineering project can i use the multirotor dedicated ARDUPILOT as my Flight controller.
Thanks in advance.
« Last Edit: August 06, 2015, 11:23:36 PM by iamahuman » Logged
 

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« Reply #1 on: August 06, 2015, 09:20:56 PM »
Swapnil
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Abhi,

You should definitely use the ArduPilot as your flight controller. Get your quadcopter flying well first. Then you can easily incorporate obstacle avoidance.

Use the APM for flight control and the Uno for obstacle sensors.
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« Reply #2 on: August 06, 2015, 09:41:44 PM »
abhi599
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Thanks for the fast reply.
« Last Edit: August 18, 2015, 05:37:58 PM by anwar » Logged
 

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« Reply #3 on: August 06, 2015, 10:10:23 PM »
abhi599
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How can i interface the arduino uno with the apm
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« Reply #4 on: August 06, 2015, 10:29:03 PM »
akhilzid
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hi abhi, i'm also suggesting you to build a quad using apm without any additional things and fly it well first, then think about other diy modifications. else its too difficult to describe about 'what is what' and 'how this can'.
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« Reply #5 on: August 07, 2015, 06:33:39 AM »
Swapnil
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Quote from: abhi599 on August 06, 2015, 10:10:23 PM
How can i interface the arduino uno with the apm
You can do that using serial communication and the MAVLink protocol. But, like I said, that's the easy part. The difficult part is getting the quadcopter to fly properly.

As you are going to demonstrate this indoors, choose a 250 size frame. That way you'll be able to add propeller shrouds and get proper maneuverability indoors.
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« Reply #6 on: August 07, 2015, 07:05:02 PM »
miginstruments
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There is a workshop on 15 n 16 of this month. you should attend it. ll  be good for u. I all send the link soon.
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« Reply #7 on: August 08, 2015, 11:35:27 AM »
abhi599
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From the above suggestions i have decided to go with the apm as my flight controller. I have done programming in 'C' so can i modify the codes in the apm, are the programs easy to understand.
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« Reply #8 on: August 08, 2015, 01:50:40 PM »
Swapnil
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The APM code is in C++ like the arduino. But you don't need to modify the APM code. Just use an arduino uno to send the obstacle sensor data to the APM.
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« Reply #9 on: August 08, 2015, 10:07:53 PM »
abhi599
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Thank you for the very fast reply sir. Sir, are the codes for apm easy to understand because I will have to explain the codes during the final presentation.
« Last Edit: August 18, 2015, 05:38:10 PM by anwar » Logged
 

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« Reply #10 on: August 09, 2015, 10:07:19 AM »
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The APM codes are really complex if you are not familiar with the hardware, flight mechanics and stabilizing algorithms. However, if you are willing to put an effort you can get the basic idea of how it all works together.

Here's a good link:
https://ghowen.me/build-your-own-quadcopter-autopilot/
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« Reply #11 on: August 09, 2015, 08:10:00 PM »
abhi599
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Thank You.
« Last Edit: August 18, 2015, 05:38:20 PM by anwar » Logged
 

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« Reply #12 on: August 12, 2015, 08:40:32 PM »
abhi599
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can anyone suggest me a website from where i can get the parts for quadcopter for low price. Any combo quadcopter kit with apm FC.
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« Reply #13 on: August 12, 2015, 08:52:28 PM »
Darshan for multirotors
Well now it flies!!
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Visit quadkopters.com
Satya sir (owner) has the perfect parts needed for multirotors
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« Reply #14 on: August 12, 2015, 08:53:20 PM »
Himadri Roy
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Quadkopters.com has good combos. You can try bidding on the parts in ebay.com but shipping takes a lot time.
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« Reply #15 on: August 12, 2015, 09:26:45 PM »
nite
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FEEL THE POWER IN YOU
contact  royalakshay   (forum member) he will definetly help you out and give you all the things at very reasonable price with very fast shipping .. just give him a try once.
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« Reply #16 on: August 12, 2015, 10:34:28 PM »
cyberhack
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Refer this it must help you solve all your doubts
http://www.flitetest.com/articles/quadcopter-obstacle-avoidance-system-using-arduino
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« Reply #17 on: September 19, 2015, 03:35:06 PM »
abhi599
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can i use hc-sr04 sensor for collision avoidance. Will the response time be low.
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« Reply #18 on: October 10, 2015, 09:02:32 AM »
virtually_ninad
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Can I know where can I get readymade flight controller for quadcopter?
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« Reply #19 on: October 10, 2015, 09:28:16 AM »
abhi599
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Contact Rohit 8097939224 he might have an APM lying around. APM is a flight controller with lot of features consider it as an option
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« Reply #20 on: October 10, 2015, 09:29:57 AM »
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I need to program it or whether it is already programmed and ready to use?
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« Reply #21 on: October 22, 2015, 11:39:23 PM »
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If anyone is interested you can check out my article at

www.flitetest.com/articles/quadcopter-obstacle-avoidance-system-using-arduino

http://teamrecon.in/collisionavoidance/

i recommend using Sharp IR sensor due to the fast response
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« Reply #22 on: October 23, 2015, 09:34:53 PM »
abhi599
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Can you suggest any cheap alternative to max sonar like hcsr04. How much does max sonar actually cost.
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« Reply #23 on: October 24, 2015, 10:16:13 AM »
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Nothing Ventured Nothing Gained
You can use GP2Y0A02YK0F  Sharp IR sensor which will cost Rs.600 per piece you need 4
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