of raspberry pi is known for its compact size, the Compute Module 4 (CM4) condenses the power of the Raspberry Pi 4 into a smaller form factor. This makes the compact board a great choice for makers looking to create powerful projects without the bulk. This is the case with Ken Van Hoeylandt’s latest pocket-sized Pi project. deck tility. This tiny handheld is built completely from scratch and powered by a Raspberry Pi CM4.
Hoeylandt explains that he wanted a project that would create something from scratch with a lot of challenges. He wanted to make a handheld similar to the Yarh.io Mini 2, but it needed to not only meet his needs, but also show a bit of his own creative flair. The result is this ultra-compact pocket-sized computer.
The unit is housed inside a 3D printed shell designed by Hoeylandt himself. This shell can best be printed using his 3D printer. The CAD files were created using his OnShape and required quite a few revisions before reaching the final design. It has a keyboard integrated on the bottom and his IPS touchscreen for video output with a resolution of 800 x 480px. Decktility also includes a portable battery, with two 18650’s powering the device for up to 6 hours.
There are several boards used in this project besides CM4. A particular challenge introduced the Arduino Nano. To avoid draining power from the battery, Hoeylandt decided to use his Nano as a voltage reader for his battery pack. USB BMS is also used to help manage the battery and enable features such as USB charging.
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Software-wise, you can theoretically run your preferred OS with this configuration. It works well with Raspberry Pi OS with many tools from browser support to media player. A similar OS would be a suitable alternative as well. For more information on the software side of the project, please visit: Github.
If you want to recreate this Raspberry Pi project, or learn more about how it all works together, check out the tutorial Ken Van Hoeylandt put together. website. There you’ll also find tons of behind-the-scenes photos and details of the production process.
