CL-32: The Minimum Possible For a Useful Handheld Computer

Throughout the history of microcomputers, there have been numerous attempts to create tiny handheld versions, with varying degrees of success. Some of these devices have been impressive, while others have fallen short in different ways. The latest entrant in this field is the CL-32 from Moosepr, a handheld computer powered by an ESP32 microcontroller, featuring an electronic paper display and a QWERTY keyboard housed in a smartly designed 3D-printed case.

The CL-32’s hardware is fairly standard for a small computing device, but its keyboard stands out. The keyboard uses a dome-switch design, and uniquely, the membrane carrying the domes is hand-made. This approach to the keyboard construction is both novel and rare in the world of microcomputers. The device also features a creative expansion system with a socket arrangement where additional boards can fit into a recessed area on the device’s surface, allowing for added functionality.

Driving the electronic paper display required some experimentation, as is often the case with such projects, but the result is a functional handheld computer. However, the CL-32 project currently lacks detailed information on the software that will be used and hardware files have not yet been released. This leaves some questions about its full potential and user experience.

Despite these gaps, the available information about the CL-32 is intriguing, suggesting a promising device that could carve out a niche among handheld computing enthusiasts. The unique hardware design choices and potential for software development make it a project worth keeping an eye on, and anticipation is high for future updates and releases.

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