I want to create an "Ambilight" using Raspberry Pi. But because this is more about electronics than the Pi itself I think here is a better place to ask this.
For different reasons I do not want to put the Pi directly near the LEDs, but have a distance of about 2 meters (6.5 feet).
The max. power consumption of the LEDs will be 60Watts. The Voltage is 5V.
Now I am a bit unsure about the diameter I need for the cable for this 5V DC. Is there a way to calculate this? I had something for 220V AC (according to the Ampere value) but don't know if this applies also to low Voltage and DC.
In Addition I need a "signal-cable" which switches the about 200 LEDs on and off in quite a fast way (my guess would be of a frequency somewhere in the kHz-Area). (also 5V, very low Ampere) What cable would be the right one for this? Coax Antenna-cable?