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Led strobe light? Answered

Hello everyone, I came across a video on youtube where I found a light on a truck but don't know what it is called maybe strobe but I am not sure about this.  My ideas would be to use an IC 555 or use arduino to control the lights to achieve the same effects that the light is on the top of the red truck cabin.

Here is the link for the video.

https://www.youtube.com/watch?v=ujbOLHGrqXs

Start at 11:41 till 11:55 and you will see the light on top of the red truck.

Thanks all

Discussions

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ThirdEarthDesign

2 years ago

Using multiple tiny SMD LED's blinking in sequence to create the rotating effect is the best bet I think. The results would be pretty effective, especially when the light is diffused by the light housing. Recreating the rotating mirror method in miniature would be difficult depending on what scale you're making.

I'd program the flashing sequence using a PICAXE microcontroller.

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rickharris

2 years ago

Use a flashing LED they cost pence and will work from a wide range of voltages.

At model sizes I think you may have a problem making the traditional rotating beacon.

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rickharris

2 years ago

Use a flashing LED they cost pence and will work from a wide range of voltages.

At model sizes I think you may have a problem making the traditional rotating beacon.

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Yonatan24

2 years ago

I don't think that's an LED. Similar to what Jack A Lopez said, that's called an Aerodrome beacon.

The light doesn't turn on/off/flicker, there's just something that spins, and blocks your view. These are fairly popular on trucks, try to look at them from close up.

This might help: https://www.youtube.com/watch?v=-CEoF7gaeJU

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ChamburnYonatan24

Answer 2 years ago

Yes that's exactly what I was looking for but proven very difficult to make. The convenience of LED is that they are cheap and very small with no moving parts and consume little amount of energy.

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Chamburn-max-

Answer 2 years ago

Hello, sure but that I wanted a more different effect.

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Chamburnrickharris

Answer 2 years ago

Hello, yes thanks for the ideas but I wanted to get that rotating effect as mention by other members above.

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Jack A Lopez

2 years ago

I would call this kind of motion, "rotation". In the video you linked to, I can sort of see a spot of light on the cab of that truck, sort of sweeping around in a circle, erm... rotating, like blades on a fan, like the hands on a clock.

Or maybe the phrase, "simulated rotation", is better, since the LEDs producing this light are not physically moving, like fan blades or clock hands. Rather they are being driven in a kind of sequence that looks like rotating motion.

I found another YT video (linked below) by another person who likes to build scale model toys. Only in this one, you get a better look at the rotating beacon, and the individual LEDs contained therein, and the video author explains, from a high-level perspective, how this gizmo works.

This what I call, "high level" programming can be seen in the linked video at around 8m+55s. Basically, dude just shorts two pins, and this makes the beacon's microcontroller switch to the next program, of N different styles of pre-programmed LED rotating.

What I would call "low level" programming, would be starting out with some LEDs and a microcontroller, e.g. something from the ATTiny family. Then wiring the connections. Then writing the code for the microcontroller for to drive the LEDs in a sequence that looks like rotation.

Obviously the "low level" approach takes a huge amount of work, compared to the "high level" approach.

Final note: blinking is not the same thing as rotating. Others answering this question seem to think you want a single blinking LED.

Or, for all I know, maybe that is what you want.

Making a single LED blink on and off, is easy, too easy, compared to making a set of LEDs do a rotating pattern.


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ChamburnJack A Lopez

Answer 2 years ago

@Jack A Lopez I was looking to have that natural look of rotating beacon and until now was able to achieve it with a Fixed led and a mirror that rotates around the LED. But trying to have that same effects using led is proven to be very difficult especially when having that moment where the intensity of light changes like sun rising and setting. With led it is just fully bright and off too quick to give that same effect.