Figure 6. Schema of the connection between microcontroller and ultrasonic rangefinder Ping ))))

From

Sensor Module for Mobile Robot

Róbert Spielmann, František Duchoň, Juraj Kostroš, Tomáš Fico, Richard Balog

American Journal of Mechanical Engineering. 2013, 1(7), 378-383 doi:10.12691/ajme-1-7-45