Okay guys i know there is more than one way to skin a cat with this job so here is the task:
I have a (Not me a friend) hot rod it has 16 holes across the back for “Indicators” the holes are 8mm in diameter and my friend wants 8 to function for each side now this would be as simple as find some 8mm orange LED’s and wire them with associated components to have 3 wires Left, Right and Gnd but here is the catch he wants the water flow pattern like and i quote “Modern vehicles”.
So i can think of several options for this job, option 1 i use 2 voltage divider on an input of an Atmega328 in a IP65 enclosure with a DC-DC converter for the 5v supply then wire up 16 LED’S to each of the outputs using 0-13 (14) and A0-A1 (2) to give me 16 outputs then use A2-A3 as the two inputs from the indicator stalk and simply program it to turn on 1 LED after another. (Sounds over-complicated.)
Option 2 i see if i can find a 8mm LED with a shift register such as the DIP type equivalent of a single WS2812 and drive them directly from 2 pins. (Don’t think i will be able to find such an LED.)
Option 3 i build a circuit similar to a VU meter using 1 of the IC chips available (Alot of wires to run in the back of a vehicle from each individual LED)
What do you people think would be the easiest solution that i could accomplish for this project really looking for some guidance thanks, Chris.