STEM教育 · 激光打病毒项目：Arduino UNO与ISD1820结合

新冠病毒让大家挺闹心的，大家都希望病痛早点消停，武汉早日恢复平静祥和。既然没地方去，不如打打‘病毒’。

效果是：当激光枪的激光束打到光敏电阻上，改变了光敏电阻预设的阈值时候，伺服电机会带动‘病毒’倒下，同时ISD录音模块被触发，发出哀嚎声。
ISO1820在连上线，并通电后，直接按REC按键，就可以录最大10秒的录音。按Play可以听录音效果。

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硬件使用如下：

1.Arduino UNO
[2020]

2.arduino sensor shield
[2020]

3.9g 伺服

4.光敏电阻

5.ISD1820

6。激光模组

7.微动开关

============================
连线部分有两个，主模块的连线如下
[2020]

激光枪连线如下

============================代码部分===============

[mw_shl_code=applescript,false]/* made by gada888--------luoyang of China--2020-2------*/

#include <Servo.h>

Servo myservo;                                                 //name servo
int photocellPin = 0;                                           //define photo cell reading input
int photocellReading;                                           //define photo cell reading variable
int shadeOpen = 0;
int shadeClosed = 0;

#define PLAY_E 3 // pin 3 is used for playback-edge trigger

void setup()
{
  Serial.begin(9600);                                           //initiate serial @ 9600 baud
  myservo.attach(11);                                           //define pin 11 as servo signal pin

  pinMode(PLAY_E,OUTPUT);
  //digitalWrite(PLAY_E,LOW);
}
void loop()
{
  Serial.print("Brightness = ");                               //print "Brightness = "
  Serial.println(photocellReading);                            //print the photocell reading

  photocellReading = analogRead(photocellPin);                   //define photocellReading as pin 0 input from LDR
  photocellReading = map(photocellReading, 0, 1023, 0, 179);    //map the LDR input to a value between 1-180 so the servo can understand it
{
  if (photocellReading <= 75 && shadeClosed == 0)                //if the LDR is showing darkness and the shade isn't closed already
{
   myservo.write(0);                                        //then tell the servo to rotate forwards at a steady rate (close shade)
   //delay(1000);                                              //2.5 second delay while shade is closing
   digitalWrite(PLAY_E,LOW);
}

  else if (photocellReading >= 75 && photocellReading <= 150)    //if the LDR senses neither new light or new dark (mid-day)
{
   myservo.write(50);                                        //stop servo
   digitalWrite(PLAY_E,HIGH);
}

  delay(500);

}
}[/mw_shl_code]==========照片部分===============
[2020]

[2020]'春节宅家一起造“在家无聊，来场激光打’病毒’