Is the code in the bolt page is enough to read the ultrasonic sensor value or do i have to code it separately
pls share your screenshot of code. Generally the code on bolt page is enough until and unless you want to add more features to your project. in that case u will have to develop your own code
Check the hardware configuration page and save it again to see what was wrong. The basic problem may be on the pins assigned part.
I have connected
is it correct.
if it is correct what pin should i assign in the configuration part