I'm using an arduino uno, and an 16x2 LCD that is connected to the arduino uno with a 1m long UTP cable to transmit data and as well power the LCD screen.
I used to test my code and my wiring with short wires and everything worked perfectly, as soon as I used the UTP cable to move my lcd a bit away from the arduino, the same code and wiring doesn't work, all i see is gibberish text (nonsense characters on the screen). I have other components in the circuit, but I have disabled them all and checked again (quadruplechecked) everything, including the LCD alone, but the problem remians. I also gave the lcd a whole separate powering line, as I thought it could have run low in energy bcs of other components using the same 5v line.
Anyone has any idea of what could the problem be? Has anyone tried connecting components with UTP cables? Should I maybe use STP instead?