In the examples the HC-SR04 is used in one wire mode. The library supports one and two wires. Copy the content of the src/hcsr04 folder and place them in your project. The idea behind the library is ...
BMP180-PressureMeasurement: Demonstrates how to measure pressure, altitude, and temperature using the BMP180 sensor module with Arduino. HCSR04-DistanceMeasurement: Demonstrates how to measure ...