GND pin Of Arduino

Other Hardware Motors, Mechanics, Power and CNC
1

Hello to everyone.I have an Arduino Uno and my question is how much current the GND pin can handle?I want to make an robotic arm with 6 servos and the total Amp are 15.It will be destroy my Arduino?For the servos i use external power supply.Thanks in advance

2

If you have wired everything correctly, with all the grounds together, the GND pin of the Arduino will not be conducting servo current. The servo current will flow back into the negative lead of the servo power supply.

3

Thank you for your reply.I attach the wiring connection.

s-l1600_00004.png

4

That's a really crap circuit diagram.

But if it boils down to looking like this, you're ok.

servos wiring cropped.jpg
servos wiring cropped.jpg1801×1277 135 KB

5

Yes i know but it will work right?

6

So long as the servo current doesn't go through the Arduino, as has been said already.

7

If i use jumper wires to join all the grounds together it should be problem?