Data Sheet

Guide V1.0
Email: [e-mail] Web: www.elecrow.com ---Designed by Elecrow Keen
71
Application effect
We can simulate a flame environment. Turn on the lighter and then near the flame sensor,
you will hear the buzzer sound.
Lesson 24: Ultrasonic ranging
Overview
This is the experimental use of ultrasonic module (HCSR04) test distance. Ultrasonic
module is generally used in the robot.
Specification
Please view “HCSR04.pdf”
Path: \Datasheet\ HCSR04.pdf
Pin definition
HC SR04 UNO R3
Vcc -> VCC
Trig -> D2
Echo -> D3
Gnd -> GND
Hardware required
Material diagram
Material name
Number
HCSR04
1
USB Cable
1
UNO R3
1
Breadboard
1