1

I've an Arduino Nano to which a Micro Servo 9g is connected. The Arduino board and consequently the servo are powered by a USB powerbank connected to the board with a USB mini cable.

My question is: Is there a way to insert a power switch so I can turn on/off the board without plug/unplug the USB (that now is the way I use) ? I was thinking to cut the USB cable and work with the positive of it but if someone has an alternative or any tips I'd really appreciate it. Thanks!

EDIT: If is needed I could make a wiring diagram.

Improve this question
1

Cutting a usb wire would be the easiest. Otherwise you'd have to cut traces in the pcb and attach wires. Not recommend for beginners. You can actually buy usb cable with a switch.

Another alternative would be to put the microcontroler in sleep mode and have it use very little power.

Improve this answer
  • Thanks for your reply. If Arduino is in sleep mode does the servo still work? – Luigi Cerone Aug 25 '16 at 18:03
  • I think that if you deattach the servo in software it doesn't use that much power. Otherwise you'd have to connect power to the servo using a transistor, so you can power it down during sleep. – Gerben Aug 25 '16 at 18:16
0

As Gerben said, you can buy a cable with a switch built in.

Usb cable with switch

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.