nodeMCU analog input 업데이트

타이머 ticker 를 2개로 늘리고 ADC 를 살려 봤다.

------------------ 참고소스 ----------------------

#include <Ticker.h>

#define LED     D0    //LED PIN define 

#define KEY_IN  D3    //Flash key pin define 

#define ANALOG_IN A0  //analog in define

Ticker flipper1;

Ticker flipper2;

unsigned int prt_index = 0;

unsigned char led_flag = 0;

void flip_test();

void led_test();

// the setup function runs once when you press reset or power the board

void setup() {

  Serial.begin(115200);

  delay(10);

  Serial.println("Start..");

  // initialize digital pin LED_BUILTIN as an output.

  pinMode(LED, OUTPUT);

  pinMode(KEY_IN, INPUT);   // == pinMode(KEY_IN, INPUT);

  flipper1.attach(0.3, flip_test);    //start , ms

  flipper2.attach(1, led_test);       //start , ms

  //flipper.detach(); //stop

}

// the loop function runs over and over again forever

void loop() {

  int buttonState = digitalRead(KEY_IN);

  if (buttonState == 0)

  {

    Serial.printf("button key input !! \n");

  }

}

//-------------------

void flip_test()

{

  int inputA_val = analogRead(ANALOG_IN);

  

  prt_index ++;

  //Serial.printf("%d",prt_index);

  switch (prt_index % 4)

  {

    case 0:

      Serial.printf("1");

      break;

    case 1:

      Serial.printf("2");

      break;

    case 2:

      Serial.printf("3");

      break;

    case 3:

      Serial.printf("4 , A: %d \n", inputA_val);

      break;

  }

}

//--------------------

void led_test()

{

  if (led_flag)

  {

    led_flag = 0;

    digitalWrite(LED, LOW);    // turn the LED off by making the voltage LOW

  }

  else

  {

    led_flag = 1;

    digitalWrite(LED, HIGH);   // turn the LED on (HIGH is the voltage level)

  }

}

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