Meanwell LDD driver: for those who want to dim to 0 using Arduino

O2Surplus said:
Tim-

The Arduino Nano is only there to step up the Mini's 480Hz PWM signal to an inaudible 25Khz PWM signal for cooling fan control. I suppose if some one really wanted temperature controlled fans, they could easily solder a DS18B20 and a 4.7k resistor directly to the Nano, and make the needed software changes. LOL- Sometimes..... I do like to leave a little bit of the "DIY work" to the "DIYer":lolspin:
Click to expand...
They could indeed :)

Looks a very flexible board!

Tim
 
Hello,

before all thank you to all who gave their time and labor to help others. This is a great topic and I learn a lot thanks to you guys !

I try to built two independent panels controlled by Arduino but my electronics knowledge is not enough to do this alone, so I continue to read and learn :reading:



O2Surplus said:
A Ha! I took a short cut and just married an LDD-H Pcb directly to the underside of a Typhon Led Controller. Check this out-

Modified "Typhon" ( I ditched all the 10V stuff and went with mainly SMD components)
TyphonLDDcontoller_zps2635f75d.png


Meanwell LDD-H sub Pcb- (plugs in directly to the Typhon)
PluginLDD_zps517781b3.png


I've already built 5 of the controllers, but I'm stuck waiting for the LDD's to ship LOL:lolspin:
Click to expand...


O2, I am very interested on it. have you continued to work on ...? a chance to have the files ...?
 
Is there an 8UP board with a jumper for the pull downs? If anyone has one I'd love to purchase one. Otherwise the gerber files I found were without the pull downs.
 
I decided to go with the 8up LDD-H Dual SCW Board. I sent my order into Seeedstudio and should be getting them in a few weeks. I placed an order for 10 but will only be keeping two. If anyone is interested in buying my remaining send me a PM.
 
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radian23 said:
I decided to go with the 8up LDD-H Dual SCW Board. I sent my order into Seeedstudio and should be getting them in a few weeks. I placed an order for 10 but will only be keeping two. If anyone is interested in buying my remaining send me a PM.
Click to expand...

I'm a little lost on what parts to get. I'm getting the following

Pitch 2.54mm 40 Pin Tin PCB Panel IC Breakable Round Female Header Strip
90 Degree Bent Right Angle Pin Header Breakable 40pin Single Strip 2.54mm
40 Pin 1x40 Male 2.54 breakable pin header #3238
DZ392 1206 smd resistor chip resistor 10k 100pcs
Digi-key: TERM BLOCK 4POS 3.81MM PCB HORIZ Part Number 609-3920-ND

Are there 1206 LEDs on this board? I'm a little confused. Anything else I'm missing
 
radian23 said:
I'm a little lost on what parts to get. I'm getting the following

Pitch 2.54mm 40 Pin Tin PCB Panel IC Breakable Round Female Header Strip
90 Degree Bent Right Angle Pin Header Breakable 40pin Single Strip 2.54mm
40 Pin 1x40 Male 2.54 breakable pin header #3238
DZ392 1206 smd resistor chip resistor 10k 100pcs
Digi-key: TERM BLOCK 4POS 3.81MM PCB HORIZ Part Number 609-3920-ND

Are there 1206 LEDs on this board? I'm a little confused. Anything else I'm missing
Click to expand...

Here's the parts list for that board(as exported from EAGLE).
 

Attachments

Hello Everyone from India.

I need help with my LED setup. I have used the board (image below) designed by O2Surplus with Meanwell LDD-H drivers to drive the LEDs.

My problem: Disconnecting the Arduino and removing the jumpers lights up all the LEDs to 100% power. But with Arduino PWM & ground pins connected, the LEDs don't light. Arduino is not sending out PWM signals to the Meanwell drivers.

What can I check to find the problem area? Why are the LEDs not lighting up with Arduino connected? Any input to troubleshoot will be extremely helpful.

Thanks.

5upLDD-Hversion3_zps402201a0.png
 
perkint said:
Have you tied the grounds together, between the arduino power supply and the one in use for the LEDs?

Tim
Click to expand...
What I did is that I connected one -Ve of the board to Arduino ground and each pwm connections from the board to pwm pin of Arduino mega 2560.

The Arduino is powered separately from a 11v power supply and each board is powered from a separate power supply connected to the +ve and -ve of the board.

Am I wrong?
 
You need to tie a wire from the driver board (the third - on the input side next to the first PWM signal input) and then connect that wire to a Gnd pin on your Arduino board. That should fix your problem as long as your Arduino is actually outputting a PWM signal.
 
Krazie4Acans said:
You need to tie a wire from the driver board (the third - on the input side next to the first PWM signal input) and then connect that wire to a Gnd pin on your Arduino board. That should fix your problem as long as your Arduino is actually outputting a PWM signal.
Click to expand...

Changed the wire connecting the board and Arduino ground and that solved the issue.

Thank you!!
 
Is there anyone out there selling these boards assembled? O2's board, that is. I know there are some assembled on ebay, but I'm sure they are nowhere near the quality of O2s boards. (I'm not the greatest at all those little pins, but I can solder LED's together with no problem). :hmm3:
 
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