[educ8s.tv] has built weather stations before, but his latest is his best yet. It’s all thanks to its low-power design, enabled by its e-paper display. The build is based around an ESP32 micr… ...

Using Spec Sensor’s Ultra-Low Power Sensor Modules (ULPSM) for ozone, nitrogen-dioxide, carbon monoxide and sulfur dioxide, a BME280 for air temperature, pressure and relative humidity, as well ...

Both the temperature and humidity sensors are 100% tested and trimmed on a production setup that’s NIST traceable and verified with equipment calibrated to ISO/IEC 17025 standards.