have converted the helper to library new file name must be MY_Scheduler.php

HOW USE IT
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1.installation
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copy MY_Scheduler.php in application/library folder

2.How to impliment it
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Go to your controller and under your method you can call any of below 

$this->load->library('MY_scheduler');  //Loading library

$this->my_scheduler->create_task($name,$frequency,$program,$time,$days); //Creating a new Scheduler tasks
$this->my_scheduler->delete_task($name); //Delete a scheduler tasks by it's name