<?php
$success = i2c_open(1);
printf("{$success}\n");
$result = i2c_read_byte(56);
printf("result: {$result}\n");
$result = i2c_write_byte(56, 0);
printf("{$result}\n");
/**
* Open the i2c bus if it's not already open.
*
* @return void
*/
private function open_bus_if_not_open()
{
if ($this->is_bus_open !== true) {
$this->is_bus_open = i2c_open($this->bus) === true;
}
}