Dear Sir,
I have interfaced ping sonar with ardiuno mega as suggested in the given manual (https://bluerobotics.com/learn/using-the-ping-sonar-with-an-arduino/#:~:text=The%20Ping%20Sonar%20is%20a,Arduino%20or%20any%20other%20microcontroller.) and arduino mega ping example however it has n’t initialized. it has been displaying as initializing failed . Pins Connected as green to arduino mega Tx1 and white to ardiuno mega RX1 red 5v and block GND.