TC 4420 Utilization

I have make a project in the utilization of TC4420 where i have use TC4420CPA as mosfet, for giving output of volt when there is input from mainboard coming, but the problem look like the output is keep giving electric flows even i don't have put any input

Please provide a schematic (even hand drawn is okay) and your code. Without those, it is impossible to assist.

I was simply try to implement This People Project
but Look like my NodeMCU cannot control the LED