SOS. Can't make it work!

Hello there,

I got the idea to build myself some abientlights using a raspberry pi.

I follow a turtorial on the youtube, got all the parts and went on to execute it.

Problem is the software side or gpio pin side

What i did is:

1) i installed rasbian and god the update/upgrades.

2) i installed hyperion, by download and installing it.

3) i went to hyperion(ipadres webbrowser) and followed allong the turtorial.

For the gpio pin, i took the middle cable of the led lights and connected it to gpio18.

(when in hyperion, the led lightswitch goes back off when i leave the page.)

Hope someone can help me!

First of all thank you for your fast reply.

I did the following, unplugged everything(because of frustration) and plugged it back.

The lights work, im not in the dark anymore.

Only thing that i am not able to make work is the ambilight part. How do i know if the capturecard works and how do i make sure hyperion can find it?

Update, i have lights just no ambilights.

At the hyperion-hub i can see my hdmi input. But the lights are not changing?

And the lights on the end are less bright (small supply?)