There are 4 pins out of the module: VCC , Trig, Echo, GND
Board Size (LWH): 1.3 inches, 0.4 inches, 0.05 inches; 8 in cable with male and female ends
Compatible with Arduino and Raspberry Pi boards
Description
Our kit comes with the HC-SR04 ultrasonic sensor board and a 8in signal cable for easy connection to your Arduino or Raspberry Pi board. There are 4 pins out of the module: VCC , Trig, Echo, GND. The board uses the standard Arduino and Raspberry Pi code librarys to add range sensing to your robotics projects.