Kube32 brings a Kubernetes-style cluster model to ESP32-S3 microcontrollers, letting users manage boards with familiar tools such as kubectl and k9s. One firmware image serves every board: a unit with at least 2 MB of PSRAM can act as control plane, while other ESP32-S3 boards join as workers. Applications run as WebAssembly pods through the wasm3 interpreter, and a macOS/Linux simulator provides a way to build and test multi-node clusters without physical hardware. The project’s central idea is to make small, networked embedded devices manageable as a cluster rather than as isolated gadgets.
The system implements a broad set of Kubernetes-compatible resources and behaviors, including deployments, services, ingress, jobs, configuration, logs, and API watch streams. It adds embedded-focused capabilities: per-pod permissions for GPIO, I2C, UART, displays, and other peripherals; persistent storage on flash or microSD; resource limits and crash-restart policies; and firmware updates with health checks and rollback. Pods can communicate through HTTP, while events can cross nodes using ESP-NOW or UDP. The README demonstrates Tessera, an issue tracker split across four pods: web and search services on the control-plane board, with database storage and a display/keypad interface on a Cardputer worker. Setup involves building and flashing firmware, provisioning Wi-Fi, then deploying workloads through standard Kubernetes manifests.
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A homebrew computer pairs a 10 MHz Motorola 68000 with 1 MB of SRAM and two 32-bit PCI slots. A Xilinx Spartan II FPGA bridges the processor to PCI, while a CPLD handles glue logic; the system is working and ready to use. (maniek86.xyz)
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Koppar’s open-hardware USB-C LTE modem adds mobile data, SMS, and voice calls to a computer, with call audio carried over USB. The project includes a four-layer KiCad board and firmware. (github.com)
A retired professor was arrested for blocking a delivery robot. She says she will do it again. (cnn.com)
Holding a PC’s power button for 12 seconds can trigger a hardware-level shutdown, while Windows may create a kernel dump after eight seconds. Many motherboards force shutdown after just four or five seconds, so the timing varies by system. (osnews.com)
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