Created
October 18, 2019 15:10
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#define cdsPin 5 | |
#define ledPin 10 | |
#define ON LOW | |
#define OFF HIGH | |
void setup() { | |
Serial.begin(9600); | |
pinMode(ledPin, OUTPUT); | |
pinMode(cdsPin, INPUT); | |
} | |
void loop() { | |
// R1のAD値を取得 | |
float cds_ad = analogRead(cdsPin); | |
// AD値を電圧値に変換 | |
float cds_v = cds_ad * 5 / 1023; | |
// 電圧値より、Lux計算 | |
float lux = 10000 * cds_v / (5 - cds_v) / 1000; | |
Serial.print(lux); | |
Serial.println(" Lux "); | |
//プログラムはここからかえます | |
if (lux < 30){ //30より小さいとき | |
digitalWrite(ledPin, ON); | |
delay(20); | |
digitalWrite(ledPin, OFF); | |
delay(20); | |
Serial.println("はやい"); | |
} else if (lux < 20){ //20より小さいとき | |
digitalWrite(ledPin, ON); | |
delay(200); | |
digitalWrite(ledPin, OFF); | |
delay(200); | |
Serial.println("ふつう"); | |
} else if (lux < 10){ //10より小さいとき | |
digitalWrite(ledPin, ON); | |
delay(1000); | |
digitalWrite(ledPin, OFF); | |
delay(1000); | |
Serial.println("おそい"); | |
}else{ //それ以外の時 | |
digitalWrite(ledPin, OFF); | |
delay(200); | |
} | |
} |
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