T0mg created a Teensy 4.1-based keyboard adapter dock for Panic’s Playdate handheld console, along with an accompanying minimalist word processor app.

The dock uses Teensy’s USB Host capabilities to transmit keyboard inputs as if they were rotations of the Playdate’s unique analogue crank controller — and can actually be used with other USB controllers, like those from 8bitDo. Alongside the Teensy, a small USB hub is concealed in the dock, to allow connection to the keyboard/controller as well as the Playdate itself.

More detail, including firmware and STL files can be found on GitHub, and a nice build thread with videos can be found on whatever the site that used to be called Twitter is called by the time you read this.