If you need a display for a Raspberry Pi project, the obvious solution is to buy a dedicated accessory specifically designed to work with your single-board computer. For many projects, however, a used $25 Kindle can actually be a better choice.

A jailbroken Kindle can do a lot more than simply allow you to install better reading software such as KOReader. If you combine a Kindle with a Raspberry Pi, you may be surprised at what even an old Kindle is able to do.

Like most of its products, Amazon has locked down its Kindle devices so that you can't easily make changes. Thankfully, some clever people have figured out ways to hack Kindles over the years. These are some of the very best mods of the past and present.