There are many ways to detect a heartbeat electronically. One of the simpler ways is to take [Orlando’s] approach. He’s built a finger-mounted pulse detector using a few simple components and an ...
I am not sure why pulse generator buffers are so fascinating at the moment. It could be that the workshop’s only crystal-backed generator that can run from 0% to 100% duty cycle is still broken, or it ...
[Arduino Sensors] → [Raspberry Pi Gateway] ↓ (Local SQI Filter) ↓ [AI Server / Cloud] ├ Quality Analysis (RandomForest) ├ Stress/Focus Classification (LightGBM) └ BPM Decision (Rule / Bandit) ↓ [LLM ...
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