PCA9685 Support?

[johnyradio]

hi

can i control the PCA9685 from FastLED running on Arduino Uno or duemilanove?

thx

[tonton81]

its a free running i2c pwm device, short answer is no. i2c is too slow and you dont control fastled with a consistant pwn

[tonton81]

unless its normal RGB strip that dont have any chips inside them

[johnyradio]

I understand that. My thought is not to send PWM over the I2C, but rather to use FastLED for higher level pattern generation, but send control codes over i2c expected by the PCA.

Ie, I'm thinking to exploit FastLED's higher level pattern optimizations, not it's PWM.

[focalintent]

The PCA9685 isn’t currently supported in FastLED. You can use fastled’s color code to set up your led data, and then use your own code to write it out to the 9685, though.

[johnyradio]

That's what I have in mind.

But is that the best way to generate color patterns for the PCA9685?

Are there any other color pattern libs?

[demlak]

I also want to use a PCA9685. Any progress on this?

[focalintent]

Again - you can use FastLED to populate your CRGB array, and then write out your own RGB values to the PCA9685 using one of the PCA9685 libraries out there. I'm unlikely to add support for the PCA9685 into FastLED until after the RGBW/RGB16 rewrite is finished (in part because the PCA9685 would want 12-bit color data).

[johnyradio]

Thanks so much for all your help and hard work! Thx for FastLED!

…

On Wed, Oct 24, 2018, 7:57 PM Daniel Garcia ***@***.***> wrote: Again - you can use FastLED to populate your CRGB array, and then write out your own RGB values to the PCA9685 using one of the PCA9685 libraries out there. I'm unlikely to add support for the PCA9685 into FastLED until after the RGBW/RGB16 rewrite is finished (in part because the PCA9685 would want 12-bit color data). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#582 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGQpuERbILetMNEo-1syCZxCW-SzHMhiks5uoSiBgaJpZM4S2dNb> .