Requirements

WebIOPi

Installation

cp env.conf.example env.conf
mkdir /var/log/checker
chown -R pi /var/log/checker

Set WebIOPi credentials and GPIO pin number in env.conf

Crontab

*/5 * * * * cd /home/pi/checker; ./checker.sh

Logrotate

Create a file /etc/logrotate.d/checker:

/var/log/checker/checker.log {
        monthly
        rotate 12
        compress
        delaycompress
        missingok
        notifempty
        create 644 pi pi
}