This is a powerful ESP32 programmable keyborad , support by home assistant via ESPHome for home automation DIYer. It also can work with KinCony’s smart relay controller. let your wall switch panel can work with “1-click” , “2-click” and “hold on” actions.
KC868-AK schematic download
KC868-AK ESP32 I/O pin define
KC868-AK ESPHome demo config for home assistant
KC868-AK technical support forum
KC868-AK “KCS” firmware download
How to use “KCS” firmware online guide
How to use “KCS” firmware YouTube video tour
KC868-AK introduction YouTube video tour
KCS v2 firmware online guide: https://www.kincony.com/esp32-kcsv2-firmware.html
KCS v2 function explanation video tour: https://youtu.be/-DexVHAxPUM