Freenove ESP32 User Manual

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Chapter 10 Ultrasonic Ranging
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Sketch
In this chapter, we use GPIO32 of ESP32 as the Trig pin of the ultrasonic module, and GPIO12 as the Echo pin
of the ultrasonic module.
Open “Sketch_05_Ultrasonic” folder in “Freenove_Robot_Dog_Kit_for_ESP32\Sketches” and then double-
click “Sketch_05_Ultrasonic.ino”.
Sketch_05_Ultrasonic
Upload the sketch to ESP32 and the robot will acquire ultrasonic data every 500 milliseconds and prints
them out through the serial port.

Freenove ESP32 Specifications

General

Brand	Freenove
Model	ESP32
Category	Computer Hardware
Language	English