Had to come on old PC as IPad is not working. It switches on, is charged OK but it wont allow me to type in my code so I cant get any further. Tried switching it off and on again and no luck.
Any advice welcome. Thanks

Have you held down both the power button and the home button (the round one on the front) until it reboots?

Try a Restart.

https://support.apple.com/en-gb/HT201559

Try the first option in that link first to power down the iPad then power it back up. If that doesn't work try the Force Restart.