HatKerne

HatKerne is a wearable computing concept in which a hat houses a compact operating system kernel and modular hardware sensors. The name combines 'hat' and 'kernel' to emphasize edge processing embedded in a head-worn device. In maker and academic discussions, HatKerne is presented as a platform for local data collection, processing, and user interaction without constant cloud connectivity.

Design and hardware commonly place a small processing module in the crown or headband, running a microkernel-based OS and a modular sensor suite. Typical components include an inertial sensor, ambient light and temperature sensors, a microphone or speaker, a battery, and wireless links such as Bluetooth or Wi‑Fi for optional pairing and updates.

Software architecture centers on modular, isolated services that run on the kernel. Developers use a HatKerne API to create plugins for sensing, display, or interaction, with emphasis on privacy and low power consumption. The microkernel design aims to reduce system-wide instability and support safe over-the-air updates.

HatKerne emerged in online maker communities in the early 2020s as a design exercise and open-source project. Proposals emphasized educational value, rapid prototyping, and wearable privacy. Real-world deployments have been limited to hobbyist demonstrations, university labs, and experimental art installations rather than mainstream products.

Related topics include wearable computing, microkernel architectures, and open hardware initiatives.