Alat Pendeteksi Golongan Darah ESP32 dan Hasil Bisa diprint serta Interface LCD Nextion

Alat Pendeteksi Golongan Darah ESP32 dan Hasil Bisa diprint serta Interface LCD Nextion

          Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat mendeteksi golongan darah. alat ini sangat bagus karena hasil pengukuran bisa di print melalui printer thermal. dan juga interface atau LCD menggunakan LCD Nextion sehingga memiliki interface yang bagus. untuk lebih jelasnya berikut adalah koding dan skemanya.

a. Skema Alat

b. Program Arduino ESP32

#include <WiFi.h>

#include <WiFiClient.h>

#define RXD2 16 

#define TXD2 17

int dataadc1;

int dataadc2;

int dataadc3;

int zero=0;

int heatTime = 80;

int heatInterval = 255;

char printDensity = 15;

char printBreakTime = 15;

char my_str1[] = "A+";

char my_str2[] = "A-";

char my_str3[] = "B+";

char my_str4[] = "B-";

char my_str5[] = "AB+";

char my_str6[] = "AB-";

char my_str7[] = "O+";

char my_str8[] = "O-";

int datahasil;

int urutan;

int mark;

int tanda = 0;

void setup() {

  Serial2.begin(9600);

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

  initPrinter();

}

void initPrinter()

{

 //Modify the print speed and heat

 Serial.write(27);

 Serial.write(55);

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

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

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

 //Modify the print density and timeout

 Serial.write(18);

 Serial.write(35);

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

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

}

void loop() {

  dataadc1 = analogRead(34);

  dataadc2 = analogRead(35);

  dataadc3 = analogRead(32);

  

  if((dataadc1 > 1000)&&(dataadc2 < 1000)&&(dataadc3 > 1000)){

  lcdCMD("hasil.txt=\"A+\"");  

  mark = 1;

  }

  if((dataadc1 > 1000)&&(dataadc2 < 1000)&&(dataadc3 < 1000)){

  lcdCMD("hasil.txt=\"A-\"");  

  mark = 2;

  }

  if((dataadc1 < 1000)&&(dataadc2 > 1000)&&(dataadc3 > 1000)){

  lcdCMD("hasil.txt=\"B+\"");  

  mark = 3;

  }

  if((dataadc1 < 1000)&&(dataadc2 > 1000)&&(dataadc3 < 1000)){

  lcdCMD("hasil.txt=\"B-\"");  

  mark = 4;

  }

  if((dataadc1 > 1000)&&(dataadc2 > 1000)&&(dataadc3 > 1000)){

  lcdCMD("hasil.txt=\"AB+\""); 

  mark = 5;

  }

  if((dataadc1 > 1000)&&(dataadc2 > 1000)&&(dataadc3 < 1000)){

  lcdCMD("hasil.txt=\"AB-\"");  

  mark = 6;

  }

  if((dataadc1 < 1000)&&(dataadc2 < 1000)&&(dataadc3 > 1000)){

  lcdCMD("hasil.txt=\"O+\"");  

  mark = 7;

  }

  if((dataadc1 < 1000)&&(dataadc2 < 1000)&&(dataadc3 < 1000)){

  lcdCMD("hasil.txt=\"O-\"");  

  mark = 8;

  }

  lcdCMD("sensor1.val=" + String(dataadc1));

  lcdCMD("sensor2.val=" + String(dataadc2));

  lcdCMD("sensor3.val=" + String(dataadc3));

  lcdCMD("noid.val=" + String(urutan));

   

    datahasil = Serial2.read();

    if(datahasil == 'A'){

    urutan++;

    }  

    if(datahasil == 'B'){

    urutan--;

    } 

    if((datahasil == 'C')&&(tanda == 0)){

    tanda = 1;  

    printing();

    } 

}

void lcdCMD(String cmd) {

  Serial2.print(cmd);

  Serial2.write(0xff);

  Serial2.write(0xff);

  Serial2.write(0xff);

  tanda = 0;

}

void printing(){

   delay(1000);

  //print

  Serial.write(27);

  Serial.write(45);

  Serial.write(1);

  Serial.print("ID= ");

  Serial.println(urutan);

if(mark == 1){

  Serial.print("GOL= ");

  Serial.println(my_str1);

  mark = 0;

  }

if(mark == 2){

  Serial.print("GOL= ");

  Serial.println(my_str2);

  mark = 0;

  }

if(mark == 3){

  Serial.print("GOL= ");

  Serial.println(my_str3);

  }

if(mark == 4){

  Serial.print("GOL= ");

  Serial.println(my_str4);

  mark = 0;

  }

if(mark == 5){

  Serial.print("GOL= ");

  Serial.println(my_str5);

  mark = 0;

  }  

if(mark == 6){

  Serial.print("GOL= ");

  Serial.println(my_str6);

  mark = 0;

  }      

if(mark == 7){

  Serial.print("GOL= ");

  Serial.println(my_str7);

  mark = 0;

  }      

if(mark == 8){

  Serial.print("GOL= ");

  Serial.println(my_str8);

  mark = 0;

  }                  

  

  Serial.write(10);

  Serial.write(10);  

}

c. Interface LCD NEXTION

d. VIDEO HASILNYA