1.7 KiB
Scheduling a Kiln Run
Our lives are busy. Sometimes you'll want your kiln to start at a scheduled time. This is really easy to do with the at command.
Install the scheduler
This installs and starts the at scheduler.
sudo apt-get update
sudo apt-get install at
Verify Time Settings
Verify the date and time and time zone are right on your system...
date
If yours looks right, proceed to Examples. If not, you need to execute commands to set it. On a raspberry-pi, this is easiest by running...
sudo raspi-config
Localisation Options -> Timezone -> Pick one -> Ok
Examples
Start a biscuit firing at 5am Friday morning...
at 5:00am friday <<END
curl -d '{"cmd":"run", "profile":"cone-05-long-bisque"}' -H "Content-Type: application/json" -X POST http://0.0.0.0:8081/api
END
Start a glaze firing in 15 minutes and start a kiln watcher...
at now +15 minutes <<END
curl -d '{"cmd":"run", "profile":"cone-6-long-glaze"}' -H "Content-Type: application/json" -X POST http://0.0.0.0:8081/api
source ~/kiln-controller/venv/bin/activate; ~/kiln-controller/watcher.jbruce.py
END
Start a biscuit fire at 1a tomorrow, but skip the first two hours [120 minutes] of candling because I know my wares are dry...
at 1am tomorrow <<END
curl -d '{"cmd":"run", "profile":"cone-05-long-bisque","startat":120}' -H "Content-Type: application/json" -X POST http://0.0.0.0:8081/api
END
Stop any running firing at 3pm tomorrow...
at 3pm tomorrow <<END
curl -d '{"cmd":"stop"}' -H "Content-Type: application/json" -X POST http://0.0.0.0:8081/api
END
List scheduled jobs...
atq
Remove scheduled jobs...
atrm jobid
where jobid is an integer that came from the atq output