[Quadcopter] [Arduino Nano/Uno] ESCs control problem

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guigui144
Posts: 1
Joined: Sun Jan 31, 2016 9:15 pm

[Quadcopter] [Arduino Nano/Uno] ESCs control problem

Post by guigui144 »

Hi !

I am new to this forum, and I don't know if my post is in the right place.

So , let me explain my problem.
i am trying to build a quadcopter based on an arduino nano / uno. I currently have 4 hobbyking ESCs that are working perfectly after the configuration process.
The first time, I tried to plug 1 ESC + motor on the arduino, and it worked ! Well problems arrive... I decide to plug all my other ESC and their motor, to test everything at the same time. But when I set every motor (ESC) to a value that allow each motor to start, 3 of them started and the fourth one ( not always the same motor ) just don't spin. if there is only one motor everything is ok and if 3 motors are connected it is still ok, but if I connect a fourth one, this one does not start.
I tried to change the arduino board, test with a uno, but still the same thing ...

One other thing, when there is 4 esc on the arduino, when I stop my motors ( pwm frequency at minimum ), 2 motors stop to spin immediatly, the third one stil spin for about 1 or 2 second. As I said before, the fourth motor did not started to spin at all.

My first impression is maybe that the arduino is unable to give the required power to the control pins of ESCs, but I don't think this is where the problem is. Because multiwii board use Atmega328, like arduino board...

Well if you need some more information, just ask, I will give you them. If someone can help me it would be great !

Here you can find components used :
LiPo : http://www.hobbyking.com/hobbyking/stor ... 0_PRO.html
ESCs : http://www.hobbyking.com/hobbyking/stor ... _ubec.html
Motors : http://www.hobbyking.com/hobbyking/stor ... V_24g.html


PS : I have decided to post my problem here because the mutilwii board use the same microcontroller as, arduino boards and maybe somebody can help me ?
Don't blame me for my bad english, this is not my native language, I am french.

Thanks for all

Ciki
Posts: 19
Joined: Mon Sep 14, 2015 7:59 pm

Re: [Quadcopter] [Arduino Nano/Uno] ESCs control problem

Post by Ciki »

Hi. which version of multiwii are you using? Have you connect to arduino a IMU board (eg GY80) with sensors? I don't think it's an arduino problem because my first quadcopter was made with arduino uno and IMU GY 80 and it flied well. Which line in config.h did you uncomment?
Bye

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