Sunrise Startup / Sunset Shutdown

Scripts that schedule a startup (WoL) or an OS (Windows) shutdown at sunrise and sunset.

Use Case

I made these to help limit the power consumption of my PC (mining rig), by restricting it's operation to between the hours of sunrise and sunset. This is when solar panels installed at it's location are generating an output and thus offsetting / providing green energy for the device.

Sunrise Startup

Prequisites:

• Network device running OpenWrt
• date (GNU coreutils 8.32)
• curl
• jq
• wakeonlan
• Enable Wake on LAN on the target device.

Start / Stop:

1. Open the sunrise-startup.sh file, and populate it with your details as follows:

   LATITUDE="YOUR_LATITUDE"
   LONGITUDE="YOUR_LONGITUDE"
   MAC_ADDRESS="YOUR_MAC_ADDRESS"
   BROADCAST_ADDRESS="YOUR_BROADCAST_ADDRESS"
   

2. mv sunrise-startup.sh /usr/local/bin/sunrise-startup on the OpenWrt device.

3. Make the script executable chmod +x /usr/local/bin/sunrise-startup

4. Run /usr/local/bin/sunrise-startup

5. Run crontab -l to see the scheduled task.

6. To stop, remove the task.

Sunset Shutdown

Prequisites:

• Windows PowerShell

Start / Stop:

1. Open the sunset-shutdown.ps1 file, and populate it with your latitude and longitude as follows:

   $latitude="YOUR_LATITUDE"
   $longitude="YOUR_LONGITUDE"
   

2. To start run sunset-shutdown.ps1 with Powershell.

3. To stop open Task Scheduler and delete \SunsetShutdown\ShutdownTask.