Hi, I'm a recent beginner to ESCs and motors and I have some problems to make it works correctly.

I want to control my ESC and my motor using an arduino. It worked correctly for few minutes (I was able to make it turns like i wanted).

Then came the problem, i disconnected my battery and everything to be sure to not be electrocute. When i reconnected the wires, the motor began to emit a sound. I won't write "beep beep beep" because it wouldn't help so i recorded it:
ht tps://ww.youtube.com/watch?v=HoLW4Lykn9M
(i don't have enough posts to post URL :'( you just have to erased the space between the first and the second "t" and add a third "w")

Once it began to emit the sound, he refused to turn like he turned before.


(i didn't change the arduino program and the order of the wires since the beginning of my manipulations)


My motor is a Jrelecs BL3674-KV2250


Thanks you to read my post.


If you need others informations to diagnostic my problem i will give you them, just ask


PS 1: I'm french, sorry for my bad english


PS 2: Have a great day

PS3: i don't know if i'm at the right place in the forum, sorry if it's not the case

Adding a link to your video

What brand is your esc? The beeping sequence should tell you something and should be included in your esc manual. I suspect the esc is not detecting a proper throttle position and will not arm.

For airplanes, the esc will not "arm" unless the throttle stick is all the way in the off position.

Seems that i resolved the problem.
My ESC is a "flydragon".
It seems that one of my arduino wire (the one which controls the ESC) was defective, i changed it and it works.