Ramping timer recommendations - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 11-10-2019, 03:58 PM Thread Starter
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Ramping timer recommendations

Does anyone have a recommendation for a decent ramping timer for an LCD light? I'm actually using a dimmable photo/video light, but it has the common 2.5mm X 5.5mm connector. I tried a MingDak, but I couldn't get it to work, it would stay on all of the time. I just need ramping and intensity as my setup is not capable of remote color temperature changes. I don't want to go big bucks, so no three-figure timers please.

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post #2 of 8 (permalink) Old 11-11-2019, 04:12 AM
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Need more info on the light..

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post #3 of 8 (permalink) Old 11-11-2019, 03:19 PM Thread Starter
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Originally Posted by jeffkrol View Post
Need more info on the light..
Model: GVM-560AS
LED Beads: 560 Pieces
CRI: 97 +
TLCI: 97+
Power: 30W
Voltage: DC12V
Battery output: DC 14.8V
Input voltage: 110-130V
Color Temperature: 2300K - 6800K
Power Source: Power Adapter or Sony F550/ F750/ F970 Li-ion Battery Battery

It uses a 2.5mm X 5.5mm plug. It's a bi-color light so I'm only looking for ramping light intensity, not color temperature which I can adjust on the light itself with an app on my phone.

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post #4 of 8 (permalink) Old 11-11-2019, 03:55 PM
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All the circuitry inc. more than likely constant current drivers are inside the light.
AFAICT "I" think the only 2 ways do do what you want is:
1) Write/hack software.
2) Disassemble and reconfigure the board..

Neither of which is really practical..

You're not going to get anywhere by trying to "dim/ramp" the DC input..

OK third method:
https://gvmled.com/products/remote-c...520s-672s-896s

Reverse engineer the ir commands and use an Aduino like build.
People have done this w/ other ir controlled lights like the Current..

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post #5 of 8 (permalink) Old 11-11-2019, 04:43 PM Thread Starter
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Quote:
Originally Posted by jeffkrol View Post
All the circuitry inc. more than likely constant current drivers are inside the light.
AFAICT "I" think the only 2 ways do do what you want is:
1) Write/hack software.
2) Disassemble and reconfigure the board..

Neither of which is really practical..

You're not going to get anywhere by trying to "dim/ramp" the DC input..

OK third method:
https://gvmled.com/products/remote-c...520s-672s-896s

Reverse engineer the ir commands and use an Aduino like build.
People have done this w/ other ir controlled lights like the Current..
I don't code, so hacking is out. The remote control for it just does intensity and color temp, things I can do with their app and it works fine with an on/off timer, so I may just have to live without the ramping feature.

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post #6 of 8 (permalink) Old 11-11-2019, 04:53 PM
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Originally Posted by butchblack View Post
The remote control for it just does intensity and color temp,

Well what I meant about the IR remote thing..
https://www.plantedtank.net/forums/2...llite-led.html


If it does intensity and color control you can err "EXPAND" it's programming..
Not easy for mere mortals but doable by learning the IR codes..



I know, again generally not practical..

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post #7 of 8 (permalink) Old 11-11-2019, 07:35 PM
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Probably simplest thing would be to buy a cheap light that does work with ramping dimmer and run it all day with ramps and then have other light kick on in the middle of that lighting period for full blaze.

Think like maybe 2 little fluval nano hung on either side of that light, they would come on and do ramping and low all day light, then other light kicks on for like 4 hrs midday cycle.
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post #8 of 8 (permalink) Old 11-11-2019, 08:54 PM Thread Starter
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Originally Posted by DaveKS View Post
Probably simplest thing would be to buy a cheap light that does work with ramping dimmer and run it all day with ramps and then have other light kick on in the middle of that lighting period for full blaze.

Think like maybe 2 little Fluval nano hung on either side of that light, they would come on and do ramping and low all day light, then other light kicks on for like 4 hrs midday cycle.
Thanks, I was thinking of adding a second small light on a separate timer to come on a bit before the main light and to go off a bit but the idea of getting a small, inexpensive, rampable light to use with the GVM is intriguing.

I'm going to have to search if having a rampable light is actually beneficial to the fish. The sudden on/off creating stress makes sense, but is that really a factor?

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