hello everyone;
i'm working now the PW-0268 ultrasonic sonar ranging IC and i want to augment the range of detection by changing the value of the R4 and C2 so that i can work with a frequency system equal to 60 Khz but i don't know how i can do that so can someone help me and explain how i can adjust the frequency?
N.B : in the data sheet the said it can reach the 18 meters
sorry for my english.
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