#OPENSPRINKLER LOGIN SSH CODE#
NOTE: all the commands in the code boxes can be combined to work in a setup script. Mac/Linux users can already SSH from command line. If you are on Windows, Putty is the tool you need to ssh into the host. So, with the Pi setup and on the network, we can SSH into the Pi and begin the config.
Open a Terminal window in the Pi desktop and use:īefore leaving the window, use this to get your current IP address: $ ifconfig | grep inet We want to enable SSH access to the Pi by using the raspi config. Default username=pi with password=raspberry. The Pi will boot into the default Desktop. Plug in your SD card to the Pi, connect Monitor, Keyboard, mouse, network cable, and power it up. With a Windows workstation I used Etcher to burn the Raspberry Image onto the Micro SD Card. I used the latest Raspberry Stretch with Desktop Image.
#OPENSPRINKLER LOGIN SSH INSTALL#
Once its all assembled, you need to install the OS. Pi with GPS Hat without pigtail installed Attach the Pigtail to the GPS Hat and then to the GPS antenna. Then mount the Pi with GPS hat into your case using the Spacers/Standoffs as needed to help support the GPS Hat in place. Solder the GPS Hat to the plastic 24 pin adapter that came with the GPS Hat. You need some Spacers/Standoffs to mount the GPS Hat properly.RF connecter Pigtail (SMA Female to to Ufl/ipx) to connect the GPS antenna to the GPSHat.Tall Pi Case (extra room to hold the GPS hat).Raspberry Pi 3b Board or Kit (MainBoard, power adapter, heatsinks, etc…).So to begin building this time source, I used the following: So for about $90 in parts, we were able to build a system with the needed time precision for this project to work. That’s as low as the NTP service can register and as good as we can get without spending a LOT of money. So we used a Raspberry Pi3b with the Adafruit GPS Hat and were able to setup a clock source based on kernel mode PPS pulses to get 1 microsecond of jitter. So we successfully built as close to a Stratum-1 time server as possible as cheaply as possible. This would require very precise time stamps on recorded data, much more accurate than what public NTP server pools could deliver. The South Florida Amateur Astronomers Association is currently working on a project to coordinate multiple Radio Telescope collection points.
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