1.8 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. This is really useful because the kiln watcher should page you in slack if something is wrong with the firing:
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