たくさんセンサーを使うための16チャンネルアナログマルチプレクサ
Arduinoでアナログマルチプレクサを使ってみましょう。16チャンネルアナログマルチプレクサ(16-Channel Analog Multiplexer)は、センサーからの入力を切り替えて使うことで、たくさんのセンサーから入力を受け取ることができる。
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void C3(); | |
void C4(); | |
void C5(); | |
void C0(); | |
void C1(); | |
void C2(); | |
void setup() | |
{ | |
pinMode( 14 , INPUT); | |
digitalWrite(14, HIGH); | |
Serial.begin(9600); | |
pinMode( 2 , OUTPUT); | |
pinMode( 3 , OUTPUT); | |
pinMode( 4 , OUTPUT); | |
pinMode( 5 , OUTPUT); | |
} | |
void loop() | |
{ | |
delay( 1000 ); | |
C0(); | |
Serial.print("C0:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
C1(); | |
Serial.print("C1:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
C2(); | |
Serial.print("C2:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
C3(); | |
Serial.print("C3:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
C4(); | |
Serial.print("C4:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
C5(); | |
Serial.print("C5:"); | |
Serial.print(" "); | |
Serial.print(analogRead(0)); | |
Serial.print(" "); | |
Serial.println(); | |
} | |
void C4() | |
{ | |
digitalWrite( 2 , LOW ); | |
digitalWrite( 3 , LOW ); | |
digitalWrite( 4 , HIGH ); | |
digitalWrite( 5 , LOW ); | |
} | |
void C3() | |
{ | |
digitalWrite( 2 , HIGH ); | |
digitalWrite( 3 , HIGH ); | |
digitalWrite( 4 , LOW ); | |
digitalWrite( 5 , LOW ); | |
} | |
void C5() | |
{ | |
digitalWrite( 2 , HIGH ); | |
digitalWrite( 3 , LOW ); | |
digitalWrite( 4 , HIGH ); | |
digitalWrite( 5 , LOW ); | |
} | |
void C2() | |
{ | |
digitalWrite( 2 , LOW ); | |
digitalWrite( 3 , HIGH ); | |
digitalWrite( 4 , LOW ); | |
digitalWrite( 5 , LOW ); | |
} | |
void C0() | |
{ | |
digitalWrite( 2 , LOW ); | |
digitalWrite( 3 , LOW ); | |
digitalWrite( 4 , LOW ); | |
digitalWrite( 5 , LOW ); | |
} | |
void C1() | |
{ | |
digitalWrite( 2 , HIGH ); | |
digitalWrite( 3 , LOW ); | |
digitalWrite( 4 , LOW ); | |
digitalWrite( 5 , LOW ); | |
} | |
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