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Like the 7-inch screen, the 5-inch version can detect up to five touchscreen inputs at once, and it doesn’t require a separate power supply when attached to the Pi board. Raspberry Pi OS can automatically detect when one of the touchscreens is installed and offers the Squeekboard onscreen keyboard to allow input without external accessories.
Full-size Pi boards from 2014’s Pi 1 B+ will work with the screen and can be mounted to the back of it to make a fully integrated mini-system.
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Raspberry Pi
The 5-inch touchscreen is a good fit for smaller smart home projects that benefit from some kind of a screen for controls—or if you just have a Pi sitting in a corner somewhere running Homebridge or a VPN server or something that you’d like to be able to control or interact with in a pinch without using an external monitor, keyboard, or mouse (or a remote-access technology like SSH). It’s not exactly a groundbreaking project, and it’s hardly the first touchscreen for the Pi, but as an inexpensive and officially supported accessory, it may benefit from wider compatibility and ecosystem support than some third-party screens.
In addition to the 5- and 7-inch models of the Touch Display 2, Raspberry Pi also offers a $100 15.6-inch portable display for people using a Pi board (or the Raspberry Pi 400 or 500 devices) as regular desktop computers.
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