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RGBW LED strip current

jocke4u last edited by

Hi,

I have a stupid question and since it's referenced in the "MySensor shop" I would like to post here

The LED strip on the "MySensor store" here http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575069610&toolid=10001&campid=5337433187&customid=&icep_item=171158397695&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
says

Specifications:
● Color: RGBW Mixed
● View angle:120°
● Working Voltage: 24V DC
● LED Quantity: 300 leds/5 M(150pcs RGB LED and 150pcs White LED)
● Working Current/Meter: 6A
● Output power: 72W /5 Meter

As I understand 5050 SMD LED have a standard power consumption of 0,24W/LED = 72W for the one above which seems ok. With 24V it should be 3 Amp for 5 m (72W/24V) and not 6A per meter as it says.

Also it would be good to have a good recommendation on 12V LED driver as you also have 12V LED strips in the shop
/ Jocke
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I didn't think the voltage drop would make enough of a difference to notice, but i guess it does. I might have to research and look for a more efficient Mosfet.
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Nice job, efficient and clean ! I'm tempted to buy this microscope now, so I can make your led light
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@Samuel235 said: Just one of many ideas, the possibilties are endless. I'de always go for RGB leds over just white, allows for more customisation while able to still give you the same white as the white leds. ... unless, as in my use case, colors are not needed. I'm too stingy to pay for the unused dry powder!
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Do you have interest to try OH2 together with MySensors Ethernet Gateway to get working? I do not have enough force to push developers to make this happen. At the moment there is some problem on this, because full control is not possible. I think that MySensors Serial Gateway is working with OH2, but I don't like to use it. I like to connect my devices into LAN not cabling via old fashioned way using serial wires.
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Thanks for the reply. I am not looking to use an LCD, although that may be the best solution. For now, I plan on creating a simple set of LEDs and buttons. I have looked over the code, and was wondering which part of the code is retrieving the status of a sensor? What if I have multiple motion sensors, how would I retrieve each unique value?
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This is a simple, low-cost and quick project that can get a high spouse acceptance factor. Mirror Remove the led strip from the aluminum profiles. Cut the aluminum profiles and the covers to appropriate length. I used a hacksaw to cut profile+cover at the same time to ensure the got the same length. Cut the led strips at one of the cut points using a side cutter. Remove the old wires (they are too short to reach the box) and solder new wires. Put the led strip back inside the aluminum profile. Note that there is a small grove at the back for the strip, this ensures that the strip is close to the profile to maximize cooling. Glue the profiles to the mirror. I used slow-curing epoxy. Electronics box Drill holes in the project box for the switch (6mm) and the potentiometer (6mm should be enough but was too tight so I used 8mm). Drill a 4mm hole for the wires to the led strips. Upload the sketch to the Arduino Connect the Arduino and the battery packs and put them inside the project box. Fasten the project box using double-sided tape. Big thanks to my wife for letting me use the action photo.
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@Homer I've made a 2 double LED dimmer as well works very good and can easily be extended with more dimable leds. See my project here
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this kind of optic fiber is probably only plastic so for a full DIY , you can use also fishing wire with a big power led or an old chistmass tree optic fiber lighted.....

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