Using Omega with LED lightstrips
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Thank you for the code Jeff.
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@Jeff-Verive Great work! We're gonna set this up in our office!
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Have some left over (2m) led strip.
Just went out and bought the components needed.
This is going to be my first project ever.thanks.
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I see they are 12V strips how long a strip can you drive with the setup shown?
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The maximum length of the LED strip ultimately depends on the current handling of the interface circuit. The Omega GPIO pins can sink or source upwards of 30mA - see my post on this at https://community.onion.io/uploads/files/1456930109030-gpio-voltage-curves.png
The interface circuit I designed was specifically for a single 5 meter strip containing 150 RGB LEDs, with a maximum current of around 180mA. The 2N3904 is only rated for 200mA maximum collector current, so a different transistor would be needed for longer strings. The value of R1 is likely to change if the replacement transistor's gain is different from that of the 2N3904.
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Have you considered using Adafruit DotStar LEDs? They use the Onion's SPI interface and only requires 5 volts. The current draw is programmable through the brightness setting.
I've managed to daisy-chain 5 RGB LEDs off of a single 500mah LiPo battery for about two hours!!
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Hey!
Well, i "kickstarted" the Omega 2 and this will me my first Project.
My plan ist to turn on an LED Strip beyond my Monitors as soon as my Door is open.The Open Close Sensor is this one: http://www.ebay.ch/itm/Fenster-Tur-Magnetschalter-Magnetkontakt-fur-Alarmanlage-/291609985379?hash=item43e54f4163:g:jS8AAOSwZVlXqb0v
Well i would need a Compatible LED Strip (50+ Centimeters long). Could you send me a Link to one?
And do you have an E-Mail or a Twitter Account so that i could contact you if i get any problems? I would really appreceate that, because as i said this will be my first Project
Have an nice day guys
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@Jan-Gerber, I think replies here (instead of by email) will benefit everyone.
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Hallo Jan, willkommen im Forum! (welcome in german
)Best is when you look in google and search for "RGB LED Lichtleisten 12V".
And yes, as @fossette mentioned, we share knowledge here in the community. If you have your own project, you can do your own request and ask what you need to know.
The social links, and a lot of other informative links you find on the onion.io page (see footer).
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Hello Guys, Hallo zusammen!
Ok, ich werde die Konversation hier weiterführen. Wollte nur keinen nerven der nicht daran Interresiert ist, ist in manchen foren so .---.
Ok, i will write here, i just wanted to not annoy anyone here
@Luciano-S Sollte diese hier funktionieren: http://bit.ly/2c3sMy4 (Ist ein Link zu Lightinthebox.com, aber da der eigentliche so unendlich lang war habe ich ihn gekürzt)
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Yes it looks good. As i see you could use it also without an omega. Connect your Alarm door switch with your strip power source and beside your computer you could control it with the IR Control.
After when you get your omega you can use this tutorial to control your LED Strip.
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@Luciano-S. said in Using Omega with LED lightstrips:
Yes it looks good. As i see you could use it also without an omega. Connect your Alarm door switch with your strip power source and beside your computer you could control it with the IR Control.
After when you get your omega you can use this tutorial to control your LED Strip.Oh, ok. I will order it and reply here if it worked or not, thank you for the tipp
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@Janus-Sanders
I would love it if you could email me the details of how you did this. I'd like to build something similar for my first project with my Omega2.Cheers.
