New Page 2

 

Welcome to SDR!

Search:

Type: Posts; User: Zeuthen

Page 1 of 2 1 2

Search: Search took 0.03 seconds.

  1. Replies
    740
    Views
    132,536

    Color mixing lenses?

    I finally got my tank up and running with the 50W dream chip lights. I've built my own controller that can be operated from a web page using my own automation framework.

    However, I've got a severe...
  2. Replies
    740
    Views
    132,536

    I don't see any spec on the max output voltage....

    I don't see any spec on the max output voltage. You should make sure that it exceeds the forward voltage of the dream chip.

    Best,
    Esben
  3. Replies
    740
    Views
    132,536

    If you just need PWM control, the Arduino forums...

    If you just need PWM control, the Arduino forums have plenty examples of how to do it. There's also the Jarduino project which I think has a PWM dimming solution as well. Also, there's the OpenReef...
  4. Finally got my two 50 leds. Danish Postal Service...

    Finally got my two 50 leds. Danish Postal Service had them delivered to a package store with no postal workers during the weekend, so I had to pull some strings to get them. Transit time to Denmark:...
  5. Replies
    740
    Views
    132,536

    Hi all, I decided to use an Atmega328 as a...

    Hi all,

    I decided to use an Atmega328 as a slave MCU on the dream chip controller board - for generating PWM and for temperature management.

    The advantages:


    Atmega328 is available in a...
  6. Mine is delayed in customs due to "missing...

    Mine is delayed in customs due to "missing invoice". Gotta love the Danish Postal Service...

    Best,
    Esben
  7. Replies
    740
    Views
    132,536

    Yes, I think this PWM controller is good for LED...

    Yes, I think this PWM controller is good for LED lighting, but in this particular application, where each PCB has three LDD-H drivers, less is more - I want to make the PCB design small (smaller than...
  8. Replies
    740
    Views
    132,536

    @Screener and other guys planning on using the...

    @Screener and other guys planning on using the Arduino+LDD-H solution:

    I've been playing with the idea of stacking the driver boards. I think I've come up with an idea that might just work -...
  9. Just got a pic from AC/RC of a package with my...

    Just got a pic from AC/RC of a package with my address on it. Looks like an early Christmass this year! :)

    Best,
    Esben
  10. Replies
    740
    Views
    132,536

    I see. I think maybe we're better off using...

    I see. I think maybe we're better off using dedicated cables/wires for the different purposes (small gauge for signal, large gauge for power) and then managing the cables together using cable sleeve....
  11. Replies
    740
    Views
    132,536

    I like the idea of running everything in a single...

    I like the idea of running everything in a single cable. Did you check if the wire gauge is sufficient for the main LED power, and what is the cable diameter?



    The Arduino accepts 12V input,...
  12. Replies
    740
    Views
    132,536

    It should be possible. How do you plan to trigger...

    It should be possible. How do you plan to trigger the power cut?

    Best,
    Esben
  13. Replies
    740
    Views
    132,536

    Yes - if you do run all your DS18B20 from a...

    Yes - if you do run all your DS18B20 from a single Arduino pin, I'd put the pull-up transistor on the Arduino shield, though, because you'll only need one. With this design, you can do either.


    ...
  14. Replies
    740
    Views
    132,536

    Thanks Screener for your kind offer....

    Thanks Screener for your kind offer. AmaraLighting say they can get the LDD-600H, so I probably won't need a relay for those.

    I'll post the Eagle files for the driver board. Note that this design...
  15. Replies
    740
    Views
    132,536

    Yup - but it may be a while, because I am also...

    Yup - but it may be a while, because I am also doing a reef controller shield for the Arduino with headers for the dream chip drivers, sensor breakouts from Atlas scientific, temperature, and some...
  16. Replies
    740
    Views
    132,536

    Yes, we could do that - but 700mA is the absolute...

    Yes, we could do that - but 700mA is the absolute maximum current for the 50 led, so if you fail to dim for some reason (software failure, bad connection, etc.), you go full power (if the failure...
  17. Replies
    740
    Views
    132,536

    If you get a good price I'd be interested. I'll...

    If you get a good price I'd be interested. I'll need 11pcs - 5 per DC and one for backup.

    Best,
    Esben
  18. Replies
    740
    Views
    132,536

    View Post

    Well, at AmaraLighting, they are £3.71 each. I've asked them if they can get the 600's for me.

    Regarding the PCBs, I'll need to order a minimum of 10 and I'll probably use 4 of them myself (2 per...
  19. Replies
    740
    Views
    132,536

    If you do find them for cheap, be sure to let me...

    If you do find them for cheap, be sure to let me know - I'm in Denmark, so I'm looking for a supplier within the EU to avoid the steep tax handling fees charged by the danish postal service. So far,...
  20. Replies
    740
    Views
    132,536

    I wonder what it is, though... A scam or a...

    I wonder what it is, though... A scam or a genuine product?

    Best,
    Esben
  21. Replies
    740
    Views
    132,536

    Hi Lee, It says input voltage 6-30V. You need...

    Hi Lee,

    It says input voltage 6-30V. You need up to 35-36V of output voltage for the Dream Chip, so unless they're using step-up converters on that board (which I doubt) or you are able to...
  22. Hi Ron, Aren't we supposed to receive an order...

    Hi Ron,

    Aren't we supposed to receive an order confirmation from AC-RC? I'd like to be reassured that my order was received and that we agree on the delivery and the payment. It really would suck...
  23. Replies
    740
    Views
    132,536

    According to the LDD-H datasheet, input voltage...

    According to the LDD-H datasheet, input voltage must be at least 3V higher than output voltage. The PSU you link to outputs 36V, so I think it's gonna be a close call, if it works at all. I'd go for...
  24. Replies
    740
    Views
    132,536

    Hi all, For anyone interested, I did a...

    Hi all,

    For anyone interested, I did a schematic of how I am going to do my lighting setup. It still needs to be reviewed by an electronics expert, though - so use this at your own risk.
    ...
  25. Hi Ron, First of all, thanks for your great...

    Hi Ron,

    First of all, thanks for your great work on the dream chip (well, this actually applies to all who have contributed). I know there are skeptics out there, and sure, there is room for...
Results 1 to 25 of 42
Page 1 of 2 1 2