Hello everyone. I am brand new to Arduino programming, and are now trying too learn how to program an Arduino Mega board. I am building an aquarium LED light. I have 2 ledgroupbuy.com Lumina 5.2 chips with MeanWell drivers. These are adjusted with a PMW signal from the Arduino board.
But i am having difficulties getting this to light properly.
This is probably a stupid question, but why won't the LED light up properly with this simple code? I have read that the analogWrite command is the only needed to light up the LED. But whatever value i put in from 0-255 it has the same level. And it is not bright at all.
I have tried the example code from the Arduino library called AnalogWrite Mega. And this dimes the LEDs up and down perfectly. But why can't i get the LED to light up when just using the analogWrite command with a fixed value?
Tried connecting 2 channels (the LED has 5 channels) and then the channel with the highest value had worked normally, but not the other!
The drivers are powered by a 48V 250W PSU and the Arduino from my laptops USB port.
Copy paste the simple code.
int led = 3;
void setup() {
pinMode(led, OUTPUT);
}
void loop() {
analogWrite(led, 50);
}
Hi, can you post a copy of your circuit please, a CAD or picture of a hand drawn circuit in jpg, png, or pdf .
Have you got the gnd of the arduino and the gnd of the driver connected together.
And i found the problem. I had not connected the ground from the Arduino board to the ground on the Coralux 6-UP board (holding all off the LDD driver). When i did this it worked perfectly.
Now i can concentrate on trying to make a program for sunset and sunrise.
I'm having trouble controlling the LDD drivers with the PWM signal. I have a Mega 2560 R3, Coralux x5 board and Meanwell LDDs installed. When the pin is set to zero I get no voltage out, but when anything greater than zero is set, the voltage is 46.7. Which is what the MW SE-350-48 PS is supplying. If I check the voltage coming from pin 3 it is inline with the the value set.
I read other places that is would be a grounding issue, but I've grounded everything. Ground from Mega to the ground from PS.
I strung together 8 small LEDs and a 10K resistor. Set my brightness to 1, 2, 3, 4 on the channels, and I get 14.0, 14.2, 14.6 and 14.8 at each pin. So the LDD just needs to complete a circuit before it will work.
Better to be cautious than blow a RapidLED Aurora puck. But I already miss the 8 hours I've been trying to figure this out.
