Data Sheet

Guide V1.0
Email: [e-mail] Web: www.elecrow.com ---Designed by Elecrow Keen
72
Jumper wires
Several
Connection diagram
Connection:
HC SR04 UNO R3
Vcc -> VCC
Trig -> D2
Echo -> D3
Gnd -> GND
Compile and upload
Tips: Refer to the operation demo (Step4 to Step8).
Language reference
Tips：click on the following name to jump to the web page.
If you fail to open, use the Adobe reader to open this document.
delayMicroseconds()
Application effect
Open the serial port monitor, and you will see the data returned by the ultrasonic module.