Fade specific LED on blink1mk2 to given RGB color over specified time.
@note For mk2 devices.
@param dev blink1 device to command
@param fadeMillis time to fade in milliseconds
@param r red part of RGB color
@param g green part of RGB color
@param b blue part of RGB color
@param n which LED to address (0=all, 1=1st LED, 2=2nd LED)
@return -1 on error, 0 on success
Fade specific LED on blink1mk2 to given RGB color over specified time. @note For mk2 devices. @param dev blink1 device to command @param fadeMillis time to fade in milliseconds @param r red part of RGB color @param g green part of RGB color @param b blue part of RGB color @param n which LED to address (0=all, 1=1st LED, 2=2nd LED) @return -1 on error, 0 on success