Some PCB design ideas for DIY LDD-L driver based builds
- Thread starter lingwendil
- Start date
lingwendil
Man who sold the world
MINOR ISSUE!
The first zip of the files for the LDD700L 4 channel "pro" driver had an issue with the ground pad of the LDD v- pins- the pad was not actually connected to ground! I had to jump a wire from the pin to ground and all works fine. This has been fixed in the files posted to github. One could easily scrap a bit of soldermask off near the pin to run a bridge with solder directly to the ground plane and still be able to use the boards. Sorry Perkint, as I believe this might show up on your boards that you ordered! (assuming you did the 4up pro boards)
The first zip of the files for the LDD700L 4 channel "pro" driver had an issue with the ground pad of the LDD v- pins- the pad was not actually connected to ground! I had to jump a wire from the pin to ground and all works fine. This has been fixed in the files posted to github. One could easily scrap a bit of soldermask off near the pin to run a bridge with solder directly to the ground plane and still be able to use the boards. Sorry Perkint, as I believe this might show up on your boards that you ordered! (assuming you did the 4up pro boards)
lingwendil
Man who sold the world
Yeah, sorry. Somehow on the design file the net for the pins went blank, some funky bug that happens occasionally with EasyEDA apparently.
I think you should refund the money I paid you! Oh, wait! I didn't pay you, you were good enough to share your design without charge! :thumbsup::thumbsup:
Thanks, again. I'll probably get some more ordered with the correction, but I may wait until you have the 4up LDD-H design. Or I might order some more of the 4up LDD-Ls, some of JoshLawless's 6up LDD-H's and then some of your LDD-Hs when they are done
Tim
Thanks, again. I'll probably get some more ordered with the correction, but I may wait until you have the 4up LDD-H design. Or I might order some more of the 4up LDD-Ls, some of JoshLawless's 6up LDD-H's and then some of your LDD-Hs when they are done
Tim
Been using one of the 4up LDD-Ls for a while and it's great, thanks! Definitely gonna order some corrected ones as I don't like having to frig/fix the design and it is so cheap to get them done.
Ordered some more of JoshLawless's 6up LDD-Hs as I've used them before and wanted some spares (I know not much goes wrong with them, but there is always that chance and they run the lights on my main tank).
Tim
Ordered some more of JoshLawless's 6up LDD-Hs as I've used them before and wanted some spares (I know not much goes wrong with them, but there is always that chance and they run the lights on my main tank).
Tim
gandalfdgrey
New member
Hi Perkint,
can you please let me know from where to get the files for the JoshLawless 6up?
Tristan
can you please let me know from where to get the files for the JoshLawless 6up?
Tristan
He posted them to a thread on here a few years back:
http://www.reefcentral.com/forums/showthread.php?t=2222702&page=70
Tim
http://www.reefcentral.com/forums/showthread.php?t=2222702&page=70
Tim
lingwendil
Man who sold the world
Glad you like them! I'm running a nano-pro on my dual 2.5 gallon fixture, works great after the fix
LDD-H designs for 4/8up are done, just need to be tested.
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gandalfdgrey
New member
Thanks
Great - I'll get some done and let you know how I get on. Again - thanks for sharingGlad you like them! I'm running a nano-pro on my dual 2.5 gallon fixture, works great after the fix
LDD-H designs for 4/8up are done, just need to be tested.
You're welcome
Tim
lingwendil
Man who sold the world
Once I finish the testing I'll likely sell some, yes I will also post up design files.
LDD-L is much smaller, a little cheaper, but only goes up to 700mA and 36 volts (unless you go for the higher power ones, then you may as well use the H series) they work well for conservatively designed applications like nano builds, refugiums, etc, or just general shorter strings of LEDs. If you use nice efficient LEDs like Luxeons they are very useful indeed. You can fit three of them into a footprint that's just a hair larger than a single LDD-H
I will also post up design files.LDD-L is much smaller, a little cheaper, but only goes up to 700mA and 36 volts (unless you go for the higher power ones, then you may as well use the H series) they work well for conservatively designed applications like nano builds, refugiums, etc, or just general shorter strings of LEDs. If you use nice efficient LEDs like Luxeons they are very useful indeed. You can fit three of them into a footprint that's just a hair larger than a single LDD-H
They are slightly less efficient and can get quite warm! I know the LDD-H gets warm as well, but IME the LDD-L a little more so. Could be my imagination as they are a bit less efficient so will get warmer, but the difference is probably not enough to notice by touch.
But I always feel they are hotter. I still love them tho, just because of their size (altho being cheaper is also good!). I've just used another of these boards on a little RGBW set up on an ESP8266 for decoration/toy
Lingwendil - if you feel like tweaking the 4up design? An extra pair of headers alongside the the PWM headers for GND - just to make it a bit easier to tie in the ground from a controller. Not too difficult as it is, I just thought I'd suggest it in case you agreed it would be easier.
Tim
But I always feel they are hotter. I still love them tho, just because of their size (altho being cheaper is also good!). I've just used another of these boards on a little RGBW set up on an ESP8266 for decoration/toy
Lingwendil - if you feel like tweaking the 4up design? An extra pair of headers alongside the the PWM headers for GND - just to make it a bit easier to tie in the ground from a controller. Not too difficult as it is, I just thought I'd suggest it in case you agreed it would be easier.
Tim
lingwendil
Man who sold the world
I for sure will be doing that, the plan for the first revision is to basically add a ground pin on either end of each row for them, similar to the LDD-H boards. I also will try to incorporate a 3 pin SMPS 12 volt regulator on the LDD-L boards, as they are affordable enough that it would be a handy feature on the 8up boards at least.
Initial testing shows that the LDD-H 8up board works well, but I'll give it a few days to run in before I release design files.
Initial testing shows that the LDD-H 8up board works well, but I'll give it a few days to run in before I release design files.
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Cool - and (again) thanks
One of the things I'm doing with this little RGB set up is playing with html, JavaScript and currently websockets (may move to Ajax) which are the bits I need to get used to, to migrate the controller code onto a WiFi interface
I'd be doing it now, if it wasn't for the fact that the 15 year old girl is playing Fortnite on my PC instead of me being able to get at it to do some coding
Tim
One of the things I'm doing with this little RGB set up is playing with html, JavaScript and currently websockets (may move to Ajax) which are the bits I need to get used to, to migrate the controller code onto a WiFi interface
I'd be doing it now, if it wasn't for the fact that the 15 year old girl is playing Fortnite on my PC instead of me being able to get at it to do some coding
Tim
lingwendil
Man who sold the world
Feature request- add a time slot feature for simple on/off control of accessories like fans, CO2, etc. A simple time on/off sort of thing would be super handy! That way the dimming channels aren't used up to do it...
lingwendil
Man who sold the world
Will do
