Meanwell LDD driver: for those who want to dim to 0 using Arduino
- Thread starter pwreef
- Start date
shirley386
Member
O2, what I'd like to see are "cards" holding 6 or 8 LDDs with card edge connectors that would plug into a "motherboard" or "backbone" that would accept 6 or 8 of these cards.
The motherboard would have 48V in, gnd, and 3 PWM signals from an Arduino.
The "daughterboards" holding the LDDs would have jumpers to select the PWM signal for each LDD and edge connectors for the LED out signals.
All connectors should be plug in (no screw terminals).
Is this doable?
The motherboard would have 48V in, gnd, and 3 PWM signals from an Arduino.
The "daughterboards" holding the LDDs would have jumpers to select the PWM signal for each LDD and edge connectors for the LED out signals.
All connectors should be plug in (no screw terminals).
Is this doable?
I got 6 of the black box 165w led box's off ebay so far they are all doing great just have no pwm but they do have a knob on top to adjust the brightness so there has to be a way to convert that knob to pwm
Maybe, likely not, I recall from other threads many of those drivers are using the pot as a varriable "R sense" resistor to set drive current, short of a programmable potentiometer (expensive) the best you could probably do is set a handful of different values using an array of resistors and an arduino controlled switch......if that's the type of driver you've got. Crack one open and poke a round.
happy new year zachts I opened one up has a potentiometer knob going to a small board all it says on it is on and off but there was another wire soldered on the after the off that was not marked like this On/Off/extra I was hoping to use some thing like a 10v to 5v pwm board or just a different board all together like the one in this thread
http://www.reefcentral.com/forums/showthread.php?t=2547287
http://www.reefcentral.com/forums/showthread.php?t=2547287
Sounds promising, and similar to the link above. probably simple enough to hack in an apex without much extra work, or arduino with the 5v pwm to 0-10v adapter board as many others have done.
Quite a few of those pesky black boxes don't have that third wire and can't be feasibly integrated with a controller for less than the cost of replacing all the drivers.
I suppose the next step is to verify what each of those wires is doing to figure out what to hook up and how.
