I can't control servos multiply when I use an adapter. please help me

Other Hardware Motors, Mechanics, Power and CNC
1

I posted an image file. When I connect 3~5 servos like that with inputting right voltage and current to Big size analog servos with an adapter servos operate weirdly. Please tell me what's the problem. Thank you

그림1.jpg
그림1.jpg2018×1127 277 KB

2

Image from Original Post so we don't have to download it. See this Image Guide

e5f180bc57ad02a1329e02ee264a03503cb000ce.jpg
e5f180bc57ad02a1329e02ee264a03503cb000ce.jpg2018×1127 277 KB

...R

3

You need to connect the servo GND to the Arduino GND.

...R

4

Robin2:
You need to connect the servo GND to the Arduino GND.

...R

OH I actually DID. I forgot to draw.

5

YunKang:
OH I actually DID. I forgot to draw.

My crystal ball was broken yesterday. Post a new drawing (and leave the existing one there) so we can see what you really have.

Better still, don't use Fritzing. Just make a drawing with pencil and paper and post a photo of it. It is too easy to misunderstand Fritzing diagrams.

And post the program you are using.

...R