Animated indicators (turn signals) with Arduino, FastLED and a WS2812B LED strip.

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I was recently asked how to connect a Arduino to a car lighting circuit to control some LED strips. As there are a number of ways to do that, I thought I'd go through some of my ideas here. This video is a bit more technical and less flashy than the last few, so if that's not you're thing you can skip this one!

GitHub page for schematics and code: https://github.com/s-marley/CarLights
Falstad circuit simulator: https://www.falstad.com/circuit/circuitjs.html
More details on optocouplers: https://learnabout-electronics.org/Semiconductors/opto_52.php

If you've found this useful and you'd like to support me to create more stuff, you can now buy me a coffee: https://www.buymeacoffee.com/scottmarley​ or buy something from Amazon UK or US at the links below. As an Amazon Associate I earn from qualifying purchases from the links below. It doesn't cost you any more and it helps me to keep making videos!

Amazon UK
3 Pack or Arduino nano: https://amzn.to/2OWmvJR

Amazon US
3 Pack or Arduino nano: https://amzn.to/3sppDvw

00:00​ - Intro
01:30 - Potential divider
03:14 - Zener diode
04:37 - Schottky diode
05:22 - Optocoupler
07:19 - Final schematic
08:35 - Hardware build
09:31 - Testing
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