Hi,
I have to drive LED signal lights. I consider three methods .
1) Connecting the Signal Lights with separate cable for each light. Here full load current will flow through the connecting cable. So higher cable size to reduce drop.
2) To keep the drivers (FETs) near the Signal light and take the Gate drive through cable. Here smaller cable size is enough. But I doubt about noise pick ups.
3) Use a Microcontroller and drivers near the Signal Lights and send the required signals through TXD, RXD pins from the main unit. Here I can save cable.
Can anybody pls comment on this and give suggestion?