new KC868-A8S will based on KC868-A8, but add RS485, RGBW LED, buzzer, GSM SIM800L on the board. no RTC. A8S will have 8 manual control buttons on the PCB.
if people like I2C extend board for extend hardware resource, we can design and make it.
if people like I2C extend board for extend hardware resource, we can design and make it.