Bi-monthly release with minor bug fixes and improvements
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#define STEP_DELAY 4 // [b]mili[/b]seconds
// Stepper motor takes 4 miliseconds to move one step = 250 steps per second (real rate = 240,905660377)
// 1) focusing from min to max takes 7 evolutions
// 2) PG2528-0502U step motor makes 7 * (360deg/15degperstep)*72:1 = 1728 steps per evolution
// 3) MAX_STEPS for 7 evolutions should be 12096
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// step on
bcm2835_gpio_write(STEP, HIGH);
// wait
bcm2835_delay(STEP_DELAY/2);
// step off
bcm2835_gpio_write(STEP, LOW);
// wait
bcm2835_delay(STEP_DELAY/2);
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