The kimχ micro is an open hardware single board computer for the NXP i.MX8M Mini application processor.
kimχ micro (pronounced kimchi micro) is a compact single board computer that offers great versatility for many different applications. It is about the size of a Raspberry Pi Zero, but packs a more powerful processor and more expansion and connectivity possibilities.
The i.MX8M Mini supports 1080p60 hardware video encode/decode, and is available in a few different configurations from single to quad core with an efficient LPDRR4 memory interface.
The board can host a half- or full-mini PCIe module as often used for high-power wifi chipsets. Mini PCIe is also perfect for other types of wireless such as LTE and LoRa radios.
USB-C and Power
A full-featured USB-C port with power source and sink capabilities supports power to the board as well as circuitry for lithium ion battery charging. An independent battery gauge IC monitors battery charge and discharge so software can assess battery level, regardless of the state of the application processor.
To enable different applications, kimχ micro has high-density expansion connectors and a standard add-on module specification, as well as a Qwiic connector for rapid prototyping or simple sensor integration.
The design of kimχ micro was done in KiCad and is available on GitHub. It is open source licensed under CERN-OHL-S V.2 so that you have many options for leveraging kimχ micro for your own projects, from integrating pre-made boards, building your own expansion modules, or respinning the whole design.
This design is still in pre-production with second rev prototypes to be brought up soon. For more information you can get updates on our kimχ micro labs page or follow @kekiefer and @groupgetscom on twitter.