rpi-ntp-pps.sh

## setting time
# src: http://www.danmandle.com/blog/getting-gpsd-to-work-with-python/
# src: https://os.mbed.com/questions/4552/Get-timestamp-via-GPS/
# src: https://www.raspberrypi.org/forums/viewtopic.php?t=194711

###### pps
# src: https://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html
# src: https://www.satsignal.eu/ntp/Raspberry-Pi-quickstart.html
# src: https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/
# src: http://www.intellamech.com/RaspberryPi-projects/rpi3_gps.html
# src: https://www.raspberrypi.org/forums/viewtopic.php?t=160249
# src: https://github.com/beta-tester/RPi-GPS-PPS-StratumOne
# src: https://github.com/rascol/Raspberry-Pi-PPS-Client
# src: https://www.rs-online.com/designspark/add-gps-time-and-location-to-a-raspberry-pi-project
# src: https://digitalbarbedwire.com/2016/12/26/a-minimal-raspberry-pi-3-gps-time-server/
# src: http://freebsd.1045724.x6.nabble.com/PPS-or-dev-ppsN-on-Raspberry-Pi-3-td6244328.html
# src: https://developers.redhat.com/blog/2017/02/22/how-to-build-a-stratum-1-ntp-server-using-a-raspberry-pi/
# src: https://hackaday.io/project/15137/instructions
# src: https://frillip.com/raspberry-pi-stratum-1-ntp-server/
# src: http://unixwiz.net/techtips/raspberry-pi3-gps-time.html
# src: https://www.raspberrypi.org/forums/viewtopic.php?t=140585
# src: https://autonomic.guru/gps-time-on-raspberry-pi/

# src = https://support.ntp.org/bin/view/Sandbox/HowtoPpsOnRaspberryPi
# src = http://www.intellamech.com/RaspberryPi-projects/rpi3_gps.html
# src = https://frillip.com/raspberry-pi-stratum-1-ntp-server/
# src = https://raspberrypi.stackexchange.com/questions/24773/raspberry-pi-gps-adafruit-and-ntp-does-not-work?rq=1
# src = http://www.satsignal.eu/ntp/Raspberry-Pi-quickstart.html

## pi sysinfo
# src: https://www.maketecheasier.com/finding-raspberry-pi-system-information/

## power mgmt
# src: https://www.raspberrypi.org/forums/viewtopic.php?t=208110

## ai
# src: https://diyrobocars.com/