DIY Tank Light

[Tiny Bubbles]

Here's a new DIY tank light I'm almost done with... It uses 3 CMOS ICs to produce a back-and-forth motion across a row of 10 red brake-light LEDs, like the Cylons or Knight Rider. It's housed inside of a 1-3/8" ID x 1-3/4" OD x 10" Long acrylic tube, with custom end caps, and bolts on in between the tank bands of double tanks. It's powered by 4 rechargeable AAA NiMH batteries and turns on when it comes in contact with water.

Click here for a quicktime video of it (6.5 MB):
http://69.47.246.17/diving/diy/tanklight/PA010109.MOV

More info to come if anyone's interested in this stuff.

-Tiny-B.

 

[Hoosier]

Wow... It is cool!

You definately remind me of "Knight Rider" TV show.....
Please post the part and manual.

BTW, is it DIR?

 

[SeanQ]

Cool project!

How much pressure do you think it can withstand?

 

[jonix]

How much pressure do you think it can withstand?

same question here. cool nonetheless!

 

[attchoum]

please, tell us how you make it step by step

 

[nazgul810]

please, tell us how you make it step by step

I would be interested in a more detailed explanation too if you wouldn't mind doing one. Maybe just a schematic and where you got your stuff or maybe more detailed.

 

[ShakaZulu]

Why not just take x-mas lights and wrap it around your tank...........nice.

 

[Tiny Bubbles]

I think it can take some pressure. The wall thickness is 3/16", which doesn't sound like much, but it is a lot for a 1-3/8" tube. I've taken it on 2 dives to 64 feet, without the electronics inside, and it didn't leak a drop. I believe it can handle depths much greater than that.

The acrylic & delrin for the housing came from McMaster-Carr.
The electronic parts came from Digi-Key, and I used iron-on circuitboard transfer paper from Technics, inc. I'll work on getting a parts list & schematic together.

-Tiny-B.

 

[hilk]

please work with the eletronic diagram circuit. tq

 

[hilk]

can u post some picture how's it look like when attach to tank??