Hi I was just working with my ultrasonic sensor (HC_SR04) using the newping.h library using my arduino nano. But it doesnt work, it keeps said that 0 cm on the display of 115200 baud, then I try to change it to 9600 baud, but it still the same. So I would like to know the problem is that my arduino cannot have the serial monitor of 115200 baud or my nano couldnt work using the Newping.h library. Thanks you for answering.
If nothing is damaged, it should work. Connections ? / code?