Query Involving Ez Robot Servo Motors

Abdun Nafay

Pakistan

Asked Jul 2013 — Edited Jul 2013

Resolved by jstarne1!

hello people, can i get some help here. I am buying the kit and wanted to know if the continuous servo motors are capable to fly a small quadcopter that i would like to make for my project?

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Niek

Netherlands

#1 Jul 2013

Hi Abdun,

First of all, no need to create 3 posts for one question.
Second, no. The Continuous servo motors cannot be used for a small quadcopter. They are too slow.

Abdun Nafay

Pakistan

#2 Jul 2013

sorry for the three posts due to my slow internet connect and thanks a lot for the reply. So, is it possible if i buy a motor powerful enough to provide the power for the lift and connect it to the ez-robot board?

Niek

Netherlands

#3 Jul 2013

Everything's possible, except building a quadcopter using the EZ-B

It just won't work properly. You'd need to have a gyroscope to keep it level, and the serial communication will not be fast enough.

Antron007

USA

#4 Jul 2013

Yes you should be able to do that. To my knowledge EZ will support any servo you plug into it.

[edit] Niek is right about the gyroscope though. You could hook the servo up to the EZB but that alone won't get you flying. [/edit]

jstarne1

USA

#5 Jul 2013

Continuous servos are far too slow to turn a prop. Look at hobbyking.com for starter kits and frames to get you going.

Abdun Nafay

Pakistan

#6 Jul 2013

thanks alot for the replies everyone. By the way i was thinking of using my android phone for gyroscope and accelerometer input readings and to build a pid controller using those readings. any suggestions on that?

jstarne1

USA

#7 Jul 2013

Anything that flies needs a much higher sample rate and accuracy. I'm afraid a android phone won't do it for you. There are quadcopter control boards with good ones built in on the internet by the hundreds. Check out that website I recommended.

Abdun Nafay

Pakistan

#8 Jul 2013

i did check out the website but i am still confused. Is it possible if i can attach a gyro and an accelerometer sensor externally with good sampling rate. and if yes then any suggestions where can i find one?

Abdun Nafay

Pakistan

#9 Jul 2013

also, i want to make the quadcopter autonomous not controlled with a controller so i ignored the hobbyking copter. if it is possible with the hobbyking copter then do let me know.

jstarne1

USA

#10 Jul 2013

Diydrones.com has neat ideas in this area. Their forum developed tools to do this
https://code.google.com/p/arducopter/

This is autonomous andnpc is only used to send periodic waypoints to a drone but otherwise fly's autonomous. This is not ideal for ezb because of range and bandwidth limitations as ezb actually uses the PC as its CPU.