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TheDude0901

Newbie

RGB LED not working correctly in Aquaero 5 LT

Monday, January 23rd 2012, 8:20pm

I have an Aquaero 5 LT running Aquasuite 2012 beta 12 and can not get the RGB LED to function correctly. As a test I've set up the LED controller to use the Aquaero CPU as sensor with the red, green and blue LEDs as the output. I have a true RGB LED that I've tested to make sure all three colors work correctly. This is wired to a 4 pin plug and plugged into the LED controller.

After some testing I quickly found out the user manual appears to be wrong. It shows pin 3 as ground when it is actually pin 4. Pin 3 is the Blue LED.

Setting the temperatures so that only one LED will go to 100% shows my Blue LED works fine. Green has the LED light blue but very dim. Red does not work at all.

So, I broke out the meter and tested voltage across the pins with the various LEDs activated.
When Aquasuite says Blue is at 100% pins 4 and 3 show 4.66v.
When Aquasuite says Green is at 100% pins 4 and 2 show 0.0v
When Aquasuite says Red is at 100% pins 4 and 1 show 0.0v

Do I have a bad controller?

Also, what are the pinouts for the RGB LED? So far I have the following:

Pin 1: Red ?

Pin 2: Green ?

Pin 3: Blue

Pin 4: Ground (Black)

Attached are pictures of my LED Controller config and a LED itself.
TheDude0901 has attached the following images:
  • LED.PNG
  • IMG_0346.JPG

sebastian

Administrator

Monday, January 23rd 2012, 8:39pm

Hi,
from the Manual:

Quoted

4.11. Connector „RGB-LED“
Connector for up to three LEDs or one two-color or RGB illumination module
(not included in delivery). High brightness LEDs (Imax 20 mA, U 3-4V) may
be connected without series resistor, a series resistor is built into the aquaero
5.
Pin assignment: Pin 1: VCC LED 1
Pin 2: VCC LED 2
Pin 3: GND
Pin 4: VCC LED 3
You need a led with Common Cathode. Your wiring is Wrong.

TheDude0901

Newbie

Monday, January 23rd 2012, 9:02pm

This is the LED that I have:

If I understand you correctly then, my LED is backwards from what I need as this one has a common anode (+) and 3 different cathodes (-) ?( ?( ?(
TheDude0901 has attached the following image:
  • Capture.PNG

sebastian

Administrator

Monday, January 23rd 2012, 9:11pm

Your Led is not working with the aquaero.
You need an LED like this: http://www.sparkfun.com/products/105

TheDude0901

Newbie

Monday, January 23rd 2012, 9:28pm

Well, crap.

You're right. My LED is exactly backwards from what's needed. The sad thing is I actually looked at those LEDs at SparkFun but decided to buy them local instead. Should have been more careful.

Thanks for your help!