Led illumination with reef-pi controller

[oreo54]

White is the DIM to the + PWM..looks like you grounded it..or you got the ground (black) on the PWM

either way..looks like you put 2 wires together..though I can't really tell

All I know is if the LED ps and the reef pi power supply negative need to be connected..

 

[figaro93]

then the negative is connected by itself same thing also the dimming alone must I connect the positive together with the dimming?

 

[oreo54]

no..if I understand you correctly.. sorry..

just like this..Dim - is just the GROUND plain of the power supplies.
where that is is irrelevant..
Ignore the fact its labeled dim - below.

 

[figaro93]

I followed this scheme but I can't dim the power LEDs

 

[oreo54]

I don't know what to say.. should work.. Maybe a software thing or a bad driver.
you said another type worked.
What was it?

 

[Bigtrout]

Figaro, which version of reef-pi are u using?
What frequency is the pca9685 set to?
Are you reading anything at the pca outputs? With a voltmeter, it should change as you increase pwm duty cycle because a voltmeter will average the pwm signal.

 

[figaro93]

I don't know what to say.. should work.. Maybe a software thing or a bad driver.
you said another type worked.
What was it?

if you were a driver of another brand if it was the broken driver I think it wouldn't work

 

[figaro93]

Figaro, which version of reef-pi are u using?
What frequency is the pca9685 set to?
Are you reading anything at the pca outputs? With a voltmeter, it should change as you increase pwm duty cycle because a voltmeter will average the pwm signal.

version 2.0 and if I'm not mistaken the PC is set to 1500

 

[Bigtrout]

Ok the meanwell pwm input specification is the signal should be from 100hz to 1000hz max, so set the frequency to 200hz and try that

 

[figaro93]

I just saw this error in the reef-pi database
Failed to initialize pca9685 driver. Error:remote I/O error

 

[figaro93]

@Ranjib

 

[figaro93]

Up

 

[figaro93]

can anyone help me?

 

[Bigtrout]

Run this command in ssh and post the result

i2cdetect -y 1

 

[BenB]

Can you send a closeup picture of your PCA9685, pi and power wiring??
You have 2 second PCA9685 to test it??