There is no ultrasonic sensor on Darkpaw. But if you have installed this sensor, check the Mars Rover PiCar files, there are instructions for making the connection, in particular from page 99.
There is no ultrasonic sensor on Darkpaw. But if you have installed this sensor, check the Mars Rover PiCar files, there are instructions for making the connection, in particular from page 99. https://www.adeept.com/video/static1/itemsfile/Tutorial_V2.pdf