LED turn signal car light sequencer

I was Talking about something like this:

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RE: LED turn signal car light sequencer

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Woah that is awesome.

Woah that is awesome.

Sequencing tail lights were on offer for some vehicles back in 1966.

I built one back in the 80's using a 555 and 4017.

The latest one I helped repair fitted into the lamp socket, and had a chip on it that detected the number of pulses and turned the LEDs on based on that.

Each one was designed to be in a certain position within the 3 tail lights, and at all times one or more lamps were on.

They also fitted an electronic flasher since the LED tailights didn't present enough load to flash correctly.

There are a few circuits around for them, but as Samuel has pointed out, they may not be legal, so check first.

The ones on the Audi can be done using neopixels and there is some code here.

Wireless Challenge .... the other bit -2

Wireless Challenge .... Beer Tap (the other bit) - 4  Assembly

Whether they end up legal may be the issue due to various laws regarding angles, brightness, etc.

Mark

Can anyone help to create something like this.

I have seen the circuit you are talking about I think thy call them knight rider circuits.

Rui

The code to drive the neopixels is there in the post.

The best way to learn is try yourself, you'll be amazed with how easy it can be by breaking it down into smaller chunks.

Get hold of some neopixels from a supplier that has documentation and support (that excludes some of the asian suppliers).

Try their demos and examples to get it working, then try modifying them to do different things.

This builds your knowledge of using them. (for instance mine wouldn't do what I wanted but I discovered I was starting at 1 instead of zero)

Then progress until you build what you want, and configure it as you want.

If you want these instantly, then I suggest buying the Audi in the video.

Sorry I have too many other projects to build these.

mark

Possibly.

I was referring to the triple tailights found in some of the sixties cars.

The original electro mechanical device is VERY expensive ... hence the replacement units using electronics.

The Audi one just starts at 1 and sequences to xx than starts again.

They obviously detect the flasher signal or they don't use the traditional flasher which is also possible.

mark

Audi uses since 2009, a digital blinker module on almost every model.

So, no problems with the flashing cadence or load power consumption.

There is also no problems with canbus errors.

Here in Europe, this is street legal as long as the brightness is the same as a OEM lamp.

I'll try to build a prototype. Instead of a regular SMD led, I want to use some Cree led, much more powerful in brightness.

Here in Europe, this is street legal as long as the brightness is the same as a OEM lamp.

That's a benefit.

You might be surprised how bright the Neopixels are running at 5v.

There are the driver chips (WS2811) to allow you to use Super High brightness LEDs.

IMO the Cree type would suit single lamp tailights, but not really suitable for the front indicator shown in the video.

Mark

My car is an audi a3 sportback 2009. Non xenon. So no problem with space for the lights.

Rui Lima wrote:

 

Can anyone help to create something like this.

Here is a link to the wiring diagram and parts to the circuit I had previously mentioned. http://homemadecircuitsandschematics.blogspot.com/2011/12/how-to-make-car-led-chasing-tail-light.html

If you wish to sequence more than 6 LEDs, you will either need to program a microcontroller or connect multiples of this circuit in a series.

The title describes it as a taillight/ brake light circuit. In the description, it mentions the circuit may also be connected to the turn signals.