#define MUX_CH_COUNT 16
#define PIN_D_MUX_S0 2
#define PIN_D_MUX_S1 3
#define PIN_D_MUX_S2 4
#define PIN_D_MUX_S3 5
#define PIN_A_MUX_SIG A0


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(PIN_D_MUX_S0, OUTPUT);
  pinMode(PIN_D_MUX_S1, OUTPUT);
  pinMode(PIN_D_MUX_S2, OUTPUT);

  digitalWrite(PIN_D_MUX_S0, LOW);
  digitalWrite(PIN_D_MUX_S1, LOW);
  digitalWrite(PIN_D_MUX_S2, LOW);
}

int readMux(int channel) {
  int controlPin[] = {PIN_D_MUX_S0, PIN_D_MUX_S1, PIN_D_MUX_S2};
  int muxChannel[8][3] = {
    {0, 0, 0}, // channel 0
    {1, 0, 0}, // channel 1
    {0, 1, 0}, // channel 2
    {1, 1, 0}, // channel 3
    {0, 0, 1}, // channel 4
    {1, 0, 1}, // channel 5
    {0, 1, 1}, // channel 6
    {1, 1, 1}, // channel 7
  };

  for (int i = 0; i < 3; i++) {
    digitalWrite(controlPin[i], muxChannel[channel][i]);
  }

  int value = analogRead(PIN_A_MUX_SIG);



  return value;
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation

  // for (int i = 0; i < 8; i++) {
  //   Serial.print(i);
  //   Serial.print(": ");
  //   Serial.print(readMux(i));
  //   Serial.print(" | ");
  // }
  for (int i = 0; i < 8; i++) {
    int value = readMux(i);
    Serial.print("Channel ");
    Serial.print(i);
    Serial.print(": ");
    Serial.print(value);
    Serial.print(" | ");
    delay(200);
  }



  Serial.println();

  delay(1000);
}