HASS<->Smartthings (native, no mqtt)<->RGB Lights

For those of you using the Smartthings implementation, are you able to change the RGB color of a bulb/strip?

I have few Ikea bulbs (color temp/brightness) and Sengled bulbs (brightness only) and everything works as expected in HASS.

However, I just finished a DIY LED strip using a ESP8266 using the McLighting library, and added a device handler in Smartthings. Everything works perfect in Smartthings, and I can also ask Google Home to “Turn light on/off”, “change brightness to”, “Change color to”, LED strip reacts as expected.

Device showed up in HASS, I can turn it off and on, but brightness and color won’t change (came up as a RGB light automatically, with the color picker and the brightness slider)

Are any of you successful with RGB control? I’d like to be able to control this with Siri as well.

I could fall back to mqtt, but I’d prefer to avoid it.

Thanks!