Project 5: Ultrasonic Sensor - Keyestudio Smart Little Turtle Robot V3 Manual

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(7) Test Result：
Upload code successfully and power on, servo swings in the range of 0° to
180°. The result is same. We usually control it by library file.
(8) Code Explanation
Arduino comes with
The following are some common statements of the servo function:
1. attach（interface）——Set servo interface, port 9 and 10 are available
2. write （angle）
range is from 0° to 180°
3. read（）——The statement to read angle of servo, read the command
value of"write()"
4. attached（）——Judge if the parameter of servo is sent to its interface
Note: The above written format is"servo variable name, specific statement
（）", for instance: myservo.attach(9)

Project 5: Ultrasonic Sensor

(1) Description
#include <Servo.h>
——The statement to set rotation angle of servo, the angle
The HC-SR04 ultrasonic sensor uses sonar to
determine distance to an object like bats do. It
(servo function and statement）
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