Rock-paper-scissors Robot

Hello, Everyone. This is a series of courses, I will share how to use cartons and arduino to make something interesting.Today, I'll show you how to make a Rock-paper-scissors robot.

#include <Servo.h>

volatile long A;

float checkdistance_11_10() {

digitalWrite(11, LOW);

delayMicroseconds(2);

digitalWrite(11, HIGH);

delayMicroseconds(10);

digitalWrite(11, LOW);

float distance = pulseIn(10, HIGH) / 58.00;

delay(10);

return distance;

}

Servo servo_3;

Servo servo_6;

Servo servo_9;

void setup()

{

A = 0;

pinMode(11, OUTPUT);

pinMode(10, INPUT);

pinMode(12, OUTPUT);

servo_3.attach(3);

servo_6.attach(6);

servo_9.attach(9);

}

void loop()

{

if (checkdistance_11_10() < 20) {

A = random(0, 4);

switch (A) {

case 1:

tone(12,131);

delay(100);

noTone(12);

servo_3.write(179);

delay(1000);

servo_3.write(90);

delay(500);

break;

case 2:

tone(12,131);

delay(100);

noTone(12);

servo_6.write(179);

delay(1000);

servo_6.write(90);

delay(500);

break;

case 3:

tone(12,131);

delay(100);

noTone(12);

servo_9.write(179);

delay(1000);

servo_9.write(90);

delay(500);

break;

}

}

}

The three servos represent the Rock paper and scissors respectively. When the hand is close to the SR04 module and the distance is less than 20cm, the buzzer makes a sound. According to the random function of the program, it randomly controls a servo changing angle to complete the game