Circuit diagram illustrating the ultrasonic transmitter and receiver. | Download Scientific Diagram
Hobby Circuit - Medium Power 40KHz Ultrasound Transducer Driver - Circuit designed by David A. Johnson, P.E. | Transducer, Circuit, Electronics circuit
Circuit diagram of the 40kHz ultrasonic transmitter | Download Scientific Diagram
6 Best Ultrasonic Circuit Projects for Hobbyists and Engineers - Homemade Circuit Projects
arduino uno - problem on implementation of the ultrasonic circuitry - Arduino Stack Exchange