Show HN: BPU – An embedded scheduler for stable UART pipelines
Summary
The Hacker News post introduces BPU, a lightweight embedded scheduler aimed at stabilizing UART pipelines under pressure by enforcing per-tick budgets, coalescing events, and degrading gracefully. It includes design notes, flow diagrams, and runtime logs, with an ESP-IDF backend in development, emphasizing observability and backpressure handling in small systems.