Thinking about Raspberry Pi security monitor
https://www.tomshardware.com/how-to/raspberry-pi-security-camera-motion-sensor

Connect and control Raspberry Pi motion detector PIR

https://forum.arduino.cc/t/help-me-to-understand-the-two-potmeters-on-my-pir-sensor/372895

https://phoenixnap.com/kb/enable-ssh-raspberry-pi

https://www.raspberrypi.com/documentation/accessories/camera.html need to add dtoverlay=imx219 in /boot/config.txt for pi camera module 2

Enable Glamor for RPi 3? https://www.raspberrypi.com/documentation/accessories/camera.html#getting-started <-- this fixed libcamera preview https://www.codegrepper.com/code-examples/python/from+timestamp+to+string+python https://www.programiz.com/python-programming/string-interpolation https://twwip.com/2019/12/17/how-to-fix-the-issue-to-allow-s3-to-publish-message-to-an-sns-topic-explained/ https://docs.aws.amazon.com/AmazonS3/latest/userguide/NotificationHowTo.html https://docs.aws.amazon.com/AmazonS3/latest/userguide/ways-to-add-notification-config-to-bucket.html https://aws.amazon.com/sns/pricing/ https://aws.amazon.com/rekognition/pricing/ https://aws.amazon.com/s3/pricing/?p=pm&c=s3&z=4 Maybe a local mesh? https://medium.com/swlh/setting-up-an-ad-hoc-mesh-network-with-raspberry-pi-3b-using-batman-adv-1c08ee565165 https://phoenixnap.com/kb/how-to-rsync-over-ssh https://stackoverflow.com/questions/9090817/copying-files-using-rsync-from-remote-server-to-local-machine https://stackoverflow.com/a/9090859/725805 https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/ `/etc/rc.local` `sudo -u pi python /home/pi/pir.py &`

  1. to sync down

rsync -chavzP username@host:~/remote-directory/ .