About

Local weather data for Kirkland, WA, using an Si-7021 temperature/humidity probe (outdoor) and a BMP390 for pressure (indoor). Daylight measurement uses a TSL2591 dual channel light-to-digital converter.

Camera is an Amcrest IP8M-2496EB-40MM PoE IP camera (3840x2160 image, 4.0mm narrower angle lens). I use OpenCV 4 to remove barrel distortion. See the following for an example: idatum/opencv-utilities

Time-lapse generated by ffmpeg using a temporary directory with symbolic links to sorted (time asc) JPEG image files. Hourly is the past 90 minutes (generated every 15 minutes) and daily is between Civil Twilight (dawn to dusk). The framerate is calculated by taking the desired duration of the time-lapse in seconds and dividing into the count of images in the sequence.

ffmpeg -loglevel info -y -f image2 -r ${framerate} -i ${tmpdir}/timelapse-%d.jpeg 
          -filter:v "scale='min(1920,iw)':'min(1080,ih)':force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" 
          -c:v libx264 -crf 28 -preset medium -metadata title="${camera}" ${videoname}.mp4

Here are some highlights over the years of object detection images as well as time-lapse videos.

Client address: 18.224.44.108

Contact: owner@