4 layers85 × 50 mm

OpenHap
kenyattaejones32-boop/AQM
Open-source hardware design for OpenHAP, an ESP32-based air quality monitor with CO sensing, thermistor temperature input, USB-C charging, and cellular data upload.
269 parts
Boards in 2 GitHub repositories, designed in KiCad, that use the BCW71 by onsemi (-55℃~+150℃ 1 NPN 100uA 110 250mV 330MHz 350mW 45V 500mA 5V NPN SOT-23-3 Bipolar (BJT) ROHS). See how each wires it, with its parts, size, README and files; the BCW71’s symbol, footprint and pinout are on its own page.

kenyattaejones32-boop/AQM
Open-source hardware design for OpenHAP, an ESP32-based air quality monitor with CO sensing, thermistor temperature input, USB-C charging, and cellular data upload.

ThomasKramp/kaarten_shieter
The PDF was generated using: - The PDF version of the .md file . - An online md to pdf converter