We have designed KC868-A16S (ESP32 16 channel relay board) for home automation DIYer. it can easy integrate to home assistant by ESPHome. the hardware have 16CH relay (MAX AC250V 10A) output + 16CH digital input + 4CH analog input, support RS485 + Ethernet + WiFi + Bluetooth + 4G SIM7600 or 2G SIM800L GSM module + DS3231 RTC module + manual control button panel.