![[Image: KC868-A6-1_05.jpg]](https://www.kincony.com/images/KC868-A6/KC868-A6-1_05.jpg)
IO-1 and IO-2 can use for wiegand. this just a label for first and second free GPIO name:
"IO-1": GPIO32
"IO-2": GPIO33
so you should define these 32,33 for esphome yaml.
KC868-A6 esp32 pin define details see here: https://www.kincony.com/forum/showthread.php?tid=1962