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In this lesson, we will learn how to use the HC-SR04 Ultrasonic sensor to measure distances and send data to a remote APP.


OSOYOO Basic  board x 1

OSOYOO ESP8266 WIFI Shield x 1

HC-SR04 Ultrasonic sensor module x 1

USB cable x 1

Jumper wires several

First, please insert the ESP8266 WiFi Shield into your mainboard.

Now press any key on your APP, and your screen will display something like the following picture.