If you're using a Bluetooth keyboard with your iPad, and you've assigned a security passcode, you could end up locking out yourself accidentally.

Bluetooth is an incredibly convenient technology, but it can be finicky sometimes. If your Bluetooth keyboard won't connect to your tablet, here's some fixes.

Here's how to use a keyboard with your iPad, as well as a look at some keyboards made especially for that purpose.

Some use Bluetooth to connect to the tablet, while others simply lay over the existing soft-keyboard.

Accessory producer Urban Armor Gear has moved into hardware with the Rugged Bluetooth Keyboard with Trackpad, a case for the 10.2-inch iPad that offers text entry and protection for the tablet.