The wiring of the pot in the photo looks correct to me, assuming it is a normal pot with the wiper being the middle connection.
but why Arduino needs it?
My Arduino burned up... I am literally crying. After one year and an half of service. I tried to upload blink sketch and it works but after a while the atmega328 starts to heat... I'am so sad =(
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16