Spirometri PEF Flow Interface Grafik LCD TFT ILI9341 Hasil Bisa di Print

Spirometri PEF Flow Interface Grafik LCD TFT ILI9341 Hasil Bisa di Print

         Pada kesempaan kali ini saya akan menjelaskan mengenai bagaimaa cara membuat alat yang dapat memonitor spirometri dengan menggunakan sensor flow meter dan interface yang dipakai adalah lcd tft ili9341 dan hasilnya bisa diprint. untuk lebih jelasnya berikut adalah koding dan skemanya.

1. Skema

2. Program Aduino IDE

#include "Wire.h"

#include "SPI.h"

#include "Adafruit_GFX.h"

#include "Adafruit_ILI9341.h"

#include <SoftwareSerial.h>

SoftwareSerial Thermal(3, 4);

#define SCREEN_WIDTH 320

#define SCREEN_HEIGHT 320

#define MINOR_GRID tft.color565(100, 100, 255)

#define MAJOR_GRID tft.color565(0, 0, 255)

#define GRID_EDGE tft.color565(255, 0, 0)

#define V_CENTER tft.color565(255, 0, 0)

#define H_CENTER tft.color565(255, 0, 0)

#define TFT_CS         10

#define TFT_DC         8

//#define TFT_LED      5v

#define TFT_RST        9

#define TFT_MOSI       11

#define TFT_CLK        13

#define TFT_MISO       12

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_MOSI, TFT_CLK, TFT_RST, TFT_MISO);

byte sensorInterrupt = 0;  // 0 = digital pin 2

byte sensorPin       = 2;

float calibrationFactor = 4.5;

int flowMilliLitres1;

int flowMilliLitres2;

int FLMa;

int FLMb;

volatile byte pulseCount;

unsigned int  frac;

float flowRate;

unsigned int flowMilliLitres;

float totalMilliLitres;

float liter;

unsigned long oldTime;

unsigned long start_times[100];

unsigned long stop_times[100];

unsigned long values[100];

int i1;

int z1;

int i2;

float z2;

int counter1;

int counter2;

float rumus;

int x=0;

int lastx=0;

int lasty=150;

int x1=0;

int lastx1=0;

int lasty1=0;

int x2=0;

int lastx2=0;

int lasty2=0;

int dataadc;

int lebar;

int tinggi;

int geser = 0;

int btprint = 7;

int btprintx;

int zero=0;

int heatTime = 80;

int heatInterval = 255;

char printDensity = 15;

char printBreakTime = 15;

void setup() {

  tft.begin();

  tft.fillScreen(ILI9341_BLACK);

  tft.setTextSize(2);

  tft.setRotation(1); 

  drawGrid(); 

  Serial.begin(9600);

  pinMode(btprint, INPUT_PULLUP);

  Thermal.begin(9600); // to write to our new printer

  initPrinter();

  pinMode(sensorPin, INPUT);

  digitalWrite(sensorPin, HIGH);

  

  pulseCount        = 0;

  flowRate          = 0.0;

  flowMilliLitres   = 0;

  totalMilliLitres  = 0;

  oldTime           = 0;

  attachInterrupt(sensorInterrupt, pulseCounter, FALLING);

}

void loop() 

{

  lebar = tft.width(); 

  tinggi = tft.height();

  tft.drawLine(0,115,lebar,115,ILI9341_RED);

  

  if(x > lebar)  

  {

    tft.fillRect(0,80,320,75,ILI9341_BLACK);

    x=0;

    lastx=x;

    drawGrid();

  }

  //aktifkan sensor flow

  if((millis() - oldTime) > 1000)

  {

    detachInterrupt(sensorInterrupt);

    flowRate = ((1000.0 / (millis() - oldTime)) * pulseCount) / calibrationFactor;

    oldTime = millis();

    flowMilliLitres1 = (flowRate / 60) * 1000;

    totalMilliLitres += flowMilliLitres1;

    liter = flowMilliLitres1 / 100.0;

    pulseCount = 0;   

    attachInterrupt(sensorInterrupt, pulseCounter, FALLING);

  }

  //nilai dimasukkan ke values

  values[i1] = flowMilliLitres1;            

  //bandingkan nilai yg terbesar

  if (values[i1] >= z1) {

  z1 = values[i1]; //nilai terbesar dimasukkan ke z1

  }

  

  tft.setTextColor(ILI9341_YELLOW,ILI9341_BLACK);  

  int y = 150 - ( liter * 10 );

  tft.drawLine(lastx,lasty,x,y,ILI9341_WHITE);

  lasty = y;

  lastx = x;

  tft.setCursor(5, 10);

  tft.setTextColor(ILI9341_YELLOW,ILI9341_BLACK);  

  tft.print("SVC: ");  

  tft.print(z1);  

  tft.print(" L/min  ");  

  

  x = x + 3;

  x1++;

  x2++;

delay(1000);

btprintx = digitalRead(btprint);

if(btprintx == 0){

  Thermal.write(27);

  Thermal.write(45);

  Thermal.write(1);

  Thermal.print("SVC = ");

  Thermal.print(z1);

  Thermal.println(" L/Min ");

  Thermal.write(10);

  Thermal.write(10); 

  z1 = 0;

  delay(3000);

}

}

void drawGrid()

{

  for (int v = 5; v < SCREEN_WIDTH; v += 10)

  {

    // minor: 5,15,25 etc /

    tft.drawFastVLine(v, 0, SCREEN_HEIGHT, MINOR_GRID);

  }

  for (int h = 5; h < SCREEN_HEIGHT; h += 10)

  {

    // minor: 5,15,25 etc

    tft.drawFastHLine(0, h, SCREEN_HEIGHT, MINOR_GRID);

  }

  // next major lines, overlapping the minor lines at cross-sections

  for (int v = 10; v < SCREEN_WIDTH; v += 10)

  {

    // main: 0,10,20 etc

    tft.drawFastVLine(v, 0, SCREEN_HEIGHT, MAJOR_GRID);

  }

  for (int h = 10; h < SCREEN_HEIGHT; h += 10)

  {

    // main: 0,10,20 etc

    tft.drawFastHLine(0, h, SCREEN_HEIGHT, MAJOR_GRID);

  }

  // edge lines

  tft.drawFastVLine(0, 0, SCREEN_HEIGHT - 1, GRID_EDGE);

  tft.drawFastVLine(SCREEN_WIDTH - 1, 0, SCREEN_HEIGHT - 1, GRID_EDGE);

  tft.drawFastHLine(0, 0, SCREEN_WIDTH - 1, GRID_EDGE);

  tft.drawFastHLine(0, SCREEN_HEIGHT - 1, SCREEN_HEIGHT - 1, GRID_EDGE);

  // center lines

  tft.drawFastVLine(SCREEN_WIDTH / 2, 0, SCREEN_HEIGHT, V_CENTER);

  //tft.drawFastHLine(0, SCREEN_HEIGHT / 2 - 1, SCREEN_HEIGHT - 1, V_CENTER);

}

void initPrinter()

{

 //Modify the print speed and heat

 Thermal.write(27);

 Thermal.write(55);

 Thermal.write(7); //Default 64 dots = 8*('7'+1)

 Thermal.write(heatTime); //Default 80 or 800us

 Thermal.write(heatInterval); //Default 2 or 20us

 //Modify the print density and timeout

 Thermal.write(18);

 Thermal.write(35);

 int printSetting = (printDensity<<4) | printBreakTime;

 Thermal.write(printSetting); //Combination of printDensity and printBreakTime

}

void pulseCounter()

{

  pulseCount++;

}

3. VIDEO HASILNYA