Ayos is a Python3 script to precisely control grow light fixtures according to your current location's sunrise and sunset in order to accurately simulate photoperiodism. This means that your plants will be exposed to light for a marginally different amount of time each day just like they would with natural light. Also this is a justification for me to use a Raspberry Pi to control grow lights rather than a $5 timer.
The following packages should be installed prior to running Ayos.
PyEphem - Used to calculate the sun's transition times
RPi.GPIO - Used to control the GPIO ports for the relay
SimpleDaemon - Used to run as daemon. My fork is currently included in this repo.
My current setup is a Raspberry Pi hooked up to a 4-channel 5V relay via GPIO. Raspberry Pi GPIO ports only put out 3.3V but in my testing this doesn't seem to cause any issue. I have a ULN2803A chip laying around that I may wire up to power the relays on a separate PSU when I get time.
Thanks to my fork of SimpleDaemon, Ayos can be run like so:
./ayos start --lat 42.7371 --lon 90.4775 --port 4Stopping is similar:
./ayos stopFor a full list of options, see the help:
./ayos --helpNot to other systems, but rather other locations. As of right now everything is hardcoded to my location, Platteville WI. If anyone wanted to make it customizable via command-line options and argparse I would happily merge it in.
Relating to enhancement above, including geocoding via The Google Geocoding API would be a significant usability improvement. I attempted to use pygeocoder and geopy but unfortunately they both have setup issue on my system when I use pip. Not sure the reason why.
Ayos is an alternate pronunciation of Eos, the Greek goddess of the dawn.
The source is released under the MIT-License.