Open this page locally, click inside the PIN field once, then let your keyboard emulator type into it.
Teach retry limits, lockouts, and HID typing without touching a real login.
This page is a local training tool. It accepts a 4-digit demo PIN, counts failed attempts, and enforces a timed lockout after repeated mistakes. It is meant for classroom exercises, browser testing, and harmless HID demonstrations.
Default demo PIN: 1234
Student practice panel
Attempts used
0 / 5
Lock status
Ready
Countdown
0s
Last result
—
Waiting for input.