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figuring out stuff
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figuring out stuff

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  1. air-quality-sensor air-quality-sensor Public

    DIY air quality monitor: ESP32-C3, 4 Sensirion/Bosch sensors, custom 4-layer PCB, ESPHome firmware with Home Assistant integration.

    HTML 56 2

  2. business-card-pcb business-card-pcb Public

    A PCB business card that shows you your own pulse. Optical PPG sensor drives a ten-LED heart; NFC tag serves the vCard with the card switched off. ATtiny1616, MAX30102, CR2032. KiCad sources, firmw…

    HTML 1