/diy/ - Do It Yourself

>>1709841
I'm trying to make my own custom input selector
To make this as basic as possible; let's just say I'm trying to switch between input 1 (HDMI) and input 2 (HDMI). I want to be able to control which input is going to the output via a toggle switch.
Obviously I can't just use a toggle switch since HDMI cables have 19 pins. I'm thinking I might need some sort of logic that can switch between a bus of multiple inputs to another bus of multiple inputs. However my concern is introducing logic means introducing latency.
I would just buy a HDMI switch and rip it open to reverse engineer it, but I was hoping I wouldn't have to blow $10 just to rip something apart. I suspect they just use a chip to control everything as well.