I want to produce different frequencies every 600us. Like between 0 - 600us, 60Hz, between 600- 1200us, 100Hz.
I want to convert pulse width produced between 50 and 100cm to one slow frequency. Then, from 50cm, I want to convert pulse width produced every 10cm to different frequencies. So when the object comes closer to the sensor, I would like to produce faster sound to alert.
I tested one sensor, and it is working!
I wanted to produce a sound at different speed, not tone. So once the object comes closer to the sensor, it will beep faster.