.: December 2020

Monitor dan Kendali Suhu Menggunakan PID Thermocouple Tipe K

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang bisa memonitor dan mengendalikan suhu menggunakan PID Control, alat ini menggunakan sensor thermocouple tipe K dan sensor asap. untuk fiturnya yaitu alat ini dapat diatur waktunya kapan dia ON dan OFF serta bisa disetting setpoint suhunya. untuk lebih jelasnya berikut adalah daftar komponen dan programnya.

a. Arduino Uno

b. Thermocouple Tipe K + Amplifier

c. Sensor Asap

d. RTC

e. SSR (Solid state relay)

f. Program Arduino IDE

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

#include <max6675.h>

#define DS3231_I2C_ADDRESS 0x68

LiquidCrystal_I2C lcd(0x27, 20, 4);

int soPin = 7;

int thermoCS = 6;

int thermoCLK = 5;

int urutan;

int so1Pin = 10;

int CS1Pin = 9;

int CLK1Pin= 8;

int ledM = 11;

int ledH = 13;

int buzzer = 12;

MAX6675 thermocouple(thermoCLK, thermoCS, soPin);

MAX6675 thermocouple1(CLK1Pin, CS1Pin, so1Pin);

int btset = A1;

int btup = A2;

int btdown = A3;

int btok = 2;

int btback = 4;

int ssr = 3;

int mark = 0;

int kipasx;

int x;

int btsetx;

int btupx;

int btdownx;

int btokx;

int btbackx;

int jam;

int asap;

int temp1;

int temp2;

int jamku;

float suhusp;

int modeku;

int menitku;

float kp = 1.15;

float ki = 0.67;

float kd = 0.15;

float p,i,d,suhu,pid;

float error,errorx,sumerr;

float sp;

float pidku;

byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;

// Convert normal decimal numbers to binary coded decimal

byte decToBcd(byte val)

{

return( (val/10*16) + (val%10) );

}

// Convert binary coded decimal to normal decimal numbers

byte bcdToDec(byte val)

{

return( (val/16*10) + (val%16) );

}

void setup()

{

lcd.begin();

lcd.clear();

lcd.noCursor();

pinMode(buzzer,OUTPUT);

pinMode(ledM,OUTPUT);

pinMode(ledH,OUTPUT);

pinMode(ssr,OUTPUT);

pinMode(btset,INPUT_PULLUP);

pinMode(btup,INPUT_PULLUP);

pinMode(btdown,INPUT_PULLUP);

pinMode(btok,INPUT_PULLUP);

pinMode(btback,INPUT_PULLUP);

Wire.begin();

Serial.begin(9600);

// DS3231 seconds, minutes, hours, day, date, month, year

setDS3231time(0,0,0,6,5,10,18);

}

void setDS3231time(byte second, byte minute, byte hour, byte dayOfWeek, byte

dayOfMonth, byte month, byte year)

{

// sets time and date data to DS3231

Wire.beginTransmission(DS3231_I2C_ADDRESS);

Wire.write(0); // set next input to start at the seconds register

Wire.write(decToBcd(second)); // set seconds

Wire.write(decToBcd(minute)); // set minutes

Wire.write(decToBcd(hour)); // set hours

Wire.write(decToBcd(dayOfWeek)); // set day of week (1=Sunday, 7=Saturday)

Wire.write(decToBcd(dayOfMonth)); // set date (1 to 31)

Wire.write(decToBcd(month)); // set month

Wire.write(decToBcd(year)); // set year (0 to 99)

Wire.endTransmission();

}

void readDS3231time(byte *second,

byte *minute,

byte *hour,

byte *dayOfWeek,

byte *dayOfMonth,

byte *month,

byte *year)

{

Wire.beginTransmission(DS3231_I2C_ADDRESS);

Wire.write(0); // set DS3231 register pointer to 00h

Wire.endTransmission();

Wire.requestFrom(DS3231_I2C_ADDRESS, 7);

// request seven bytes of data from DS3231 starting from register 00h

*second = bcdToDec(Wire.read() & 0x7f);

*minute = bcdToDec(Wire.read());

*hour = bcdToDec(Wire.read() & 0x3f);

*dayOfWeek = bcdToDec(Wire.read());

*dayOfMonth = bcdToDec(Wire.read());

*month = bcdToDec(Wire.read());

*year = bcdToDec(Wire.read());

}

void displayTime()

{

// retrieve data from DS3231

readDS3231time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,

&year);

lcd.setCursor(0,0);

// send it to the serial monitor

lcd.print(hour, DEC);

// convert the byte variable to a decimal number when displayed

lcd.print(":");

if (minute<10)

{

lcd.print("0");

}

lcd.print(minute, DEC);

lcd.print(":");

if (second<10)

{

lcd.print("0");

}

lcd.print(second, DEC);

}

void loop()

{

digitalWrite(ssr,HIGH);

asap = analogRead(A0);

temp1 = thermocouple.readCelsius();

temp2 = thermocouple1.readCelsius();

lcd.setCursor(0,1);

lcd.print("SUHU1 : ");

lcd.print(temp1 );

lcd.print(" 'C ");

lcd.setCursor(0,2);

lcd.print("SUHU2 : ");

lcd.print(temp2);

lcd.print(" 'C ");

lcd.setCursor(0,3);

lcd.print("ASAP: ");

lcd.print(asap);

lcd.print(" ");

btsetx = digitalRead(btset);

if(btsetx == 0){

delay(200);

lcd.clear();

pilih();

}

if(modeku == 1){

delay(200);

lcd.clear();

setmanual();

setDS3231time(0,0,0,6,5,10,18);

mulaimanu();

}

if(modeku == 2){

delay(200);

lcd.clear();

setDS3231time(0,0,0,6,5,10,18);

suhusp = 32.2;

urutan = 1;

mulaioto();

suhusp = 48.8;

urutan = 2;

mulaioto();

suhusp = 54.4;

urutan = 3;

mulaioto();

suhusp = 65.5;

urutan = 4;

mulaioto();

}

//displayTime();

delay(1000);

}

void pilih(){

btokx = digitalRead(btok);

btbackx = digitalRead(btback);

lcd.setCursor(5,0);

lcd.print("PILIH MODE");

lcd.setCursor(0,2);

lcd.print("MANUAL OTOMATIS");

if(btokx == 0){

delay(1000);

lcd.clear();

modeku = 2;

return;

}

if(btbackx == 0){

delay(1000);

lcd.clear();

modeku = 1;

return;

}

pilih();

}

void setmanual(){

lcd.setCursor(0,0);

lcd.print("PILIH JAM: ");

lcd.print(jamku);

lcd.print(" ");

lcd.setCursor(0,1);

lcd.print("PILIH MENIT: ");

lcd.print(menitku);

lcd.print(" ");

lcd.setCursor(0,2);

lcd.print("PILIH SUHU: ");

lcd.print(suhusp);

lcd.print(" ");

if(jamku < 0){

jamku = 0;

}

if(suhusp < 0){

suhusp = 0;

}

btsetx = digitalRead(btset);

btupx = digitalRead(btup);

btdownx = digitalRead(btdown);

btokx = digitalRead(btok);

btbackx = digitalRead(btback);

if(btupx == 0){

delay(200);

menitku = menitku + 30;

}

if(btdownx == 0){

delay(200);

menitku = menitku - 30;

}

if(menitku > 30){

jamku++;

menitku = 0;

}

if(menitku < 0){

menitku = 0;

jamku--;

}

if(btokx == 0){

delay(200);

suhusp = suhusp + 0.5;

}

if(btbackx == 0){

delay(200);

suhusp = suhusp - 0.5;

}

if(btsetx == 0){

delay(200);

lcd.clear();

return;

}

setmanual();

}

void mulaimanu(){

btokx = digitalRead(btok);

btbackx = digitalRead(btback);

if((btbackx == 0)&&(btokx == 0)){

lcd.clear();

delay(1000);

modeku = 0;

return;

}

analogWrite(ssr,pidku);

error = suhusp - temp1;

p = error * kp;

sumerr = error + errorx;

i = ki * sumerr;

d = kd * (error - errorx) ;

pid = p + i + d;

if(pid < 1){

pid = 0;

}

if(pid > 255){

pid = 255;

}

pidku = 255 - pid;

lcd.setCursor(11,3);

lcd.print(jamku);

lcd.print(".");

lcd.print(menitku);

lcd.print("/");

lcd.print(suhusp);

asap = analogRead(A0);

temp1 = thermocouple.readCelsius();

temp2 = thermocouple1.readCelsius();

lcd.setCursor(14,1);

lcd.print(pid);

lcd.print(" ");

lcd.setCursor(14,0);

lcd.print("MANUAL");

lcd.setCursor(0,1);

lcd.print("SUHU1: ");

lcd.print(temp1);

lcd.print(" 'C ");

lcd.setCursor(0,2);

lcd.print("SUHU2: ");

lcd.print(temp2);

lcd.print(" 'C ");

lcd.setCursor(0,3);

lcd.print("ASAP: ");

lcd.print(asap);

lcd.print(" ");

displayTime();

delay(1000);

if((hour == jamku)&&(minute == menitku)){

lcd.clear();

delay(1000);

modeku = 0;

return;

}

if(asap < 500){

digitalWrite(ledH,HIGH);

digitalWrite(ledM,LOW);

digitalWrite(buzzer,LOW);

}

if(asap > 500){

digitalWrite(ledH,LOW);

digitalWrite(ledM,HIGH);

digitalWrite(buzzer,HIGH);

}

errorx = error;

mulaimanu();

}

void mulaioto(){

btokx = digitalRead(btok);

btbackx = digitalRead(btback);

if((btbackx == 0)&&(btokx == 0)){

lcd.clear();

delay(1000);

modeku = 0;

return;

}

analogWrite(ssr,pidku);

error = suhusp - temp1;

p = error * kp;

sumerr = error + errorx;

i = ki * sumerr;

d = kd * (error - errorx) ;

pid = p + i + d;

if(pid < 1){

pid = 0;

}

if(pid > 255){

pid = 255;

}

pidku = 255 - pid;

lcd.setCursor(11,3);

lcd.print("1");

lcd.print(".");

lcd.print("30");

lcd.print("/");

lcd.print(suhusp);

asap = analogRead(A0);

temp1 = thermocouple.readCelsius();

temp2 = thermocouple1.readCelsius();

lcd.setCursor(14,1);

lcd.print(pid);

lcd.print(" ");

lcd.setCursor(14,0);

lcd.print("OTO");

lcd.print(urutan);

lcd.setCursor(0,1);

lcd.print("SUHU1: ");

lcd.print(temp1);

lcd.print(" 'C ");

lcd.setCursor(0,2);

lcd.print("SUHU2: ");

lcd.print(temp2);

lcd.print(" 'C ");

lcd.setCursor(0,3);

lcd.print("ASAP: ");

lcd.print(asap);

lcd.print(" ");

displayTime();

delay(1000);

if((hour == 1)&&(minute == 30)){

lcd.clear();

delay(1000);

modeku = 0;

return;

}

if(asap < 500){

digitalWrite(ledH,HIGH);

digitalWrite(ledM,LOW);

digitalWrite(buzzer,LOW);

}

if(asap > 500){

digitalWrite(ledH,LOW);

digitalWrite(ledM,HIGH);

digitalWrite(buzzer,HIGH);

}

errorx = error;

mulaioto();

}

g. VIDEO HASILNYA

Monitor Kadar Oksigen dalam Darah (SPO2) ONLINE Thingspeak

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat mengukur kadar oksigen dalam darah dengan monitor via Thingspeak secara online. jadi komunikasi alat dengan server dengan menggunakan internet. sensor yang dipakai adalah max30100 untuk lebih jelasnya berikut adalah daftar komponen dan programnya.

a. Wemos D1 mini

b. Sensor Max30100

c. LCD + I2C

d. Program Arduino IDE

#include <ThingSpeak.h>
#include <ESP8266WiFi.h>
#include <Wire.h>
#include "MAX30100.h"
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

WiFiClient client;

// ThingSpeak Settings

String apiKey = "56GJDDGKJH56GJF";
const char *ssid = "okok";
const char *pass = "123456789";
const char* server = "api.thingspeak.com";

MAX30100* pulseOxymeter;

int counter;
float Spo;

void setup() {

Wire.begin();
Serial.begin(115200);
lcd.begin();
lcd.clear();

Serial.println("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED){\
   pulseOxymeter = new MAX30100();

    delay(200);
    Serial.println(".");
    }
Serial.println("");
Serial.println("WiFi connected");
}

void loop(){

pulseoxymeter_t result = pulseOxymeter->update();

if( result.pulseDetected == true ){

    lcd.setCursor(2,0);
    lcd.print( "SpO2: " );
    lcd.print( result.SaO2);
    lcd.println( " %          ");

Spo = result.SaO2;

}

counter++;

if(counter > 100){
    counter = 0;

if(client.connect(server, 80)){
    String postStr= apiKey;
    postStr += "&field1=";
    postStr += String(Spo);
    postStr += "\r\n\r\n";
    client.print("POST /update HTTP/1.1\n");
    client.print("Host: api.thingspeak.com\n");
    client.print("Connection: close\n");
    client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
    client.print("Content-Type: application/x-www-form-urlencoded\n");
    client.print("Content-Length: ");
    client.print(postStr.length());
    client.print("\n\n");
    client.print(postStr);

    Serial.println(Spo);
    Serial.println("%. Send to Thingspeak.");

}

client.stop();
Serial.println("Waiting...");
delay(15000);
}

}

e. Gambar Hasilnya

f. VIDEO HASILNYA

Monitor dan Kendali Suhu Kompor Listrik Menggunakan Arduino dan Thermocouple Tipe K

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat memonitor suhu dan mengendalikan suhu agar disuatu range suhu tertentu dengan menggunakan Arduino. untuk sensor yang dipakai yaitu thermocouple tipe K dan pemanas yang digunakan adalah kompor listrik. untuk lebih jelasnya berikut adalah daftar komponen dan programnya.

a. Arduino Uno

b. LCD I2C

c. SSR AC DC

d. Driver Motor IBT2

e. Thermocouple Tipe K + Ampli

f. Program Arduino IDE

#include <max6675.h>

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);

int soPin = 4;

int thermoCS = 5;

int thermoCLK = 6;

int so1Pin = 7;

int CS1Pin = 8;

int CLK1Pin= 9;

int buzzer = 12;

int motor1 = 10;

int motor2 = 11;

int bt1 = A0;

int bt2 = A1;

int bt3 = A2;

int bt4 = A3;

int bt5 = 2;

int bt1x;

int bt2x;

int bt3x;

int bt4x;

int bt5x;

int temp1;

int temp2;

int ssr = 3;

int sp = 150;

int waktu = 0;

int counter;

int mode;

int countx;

MAX6675 thermocouple(thermoCLK, thermoCS, soPin);

MAX6675 thermocouple1(CLK1Pin, CS1Pin, so1Pin);

void setup() {

Serial.begin(9600);

lcd.begin();

lcd.clear();

pinMode(bt1,INPUT_PULLUP);

pinMode(bt2,INPUT_PULLUP);

pinMode(bt3,INPUT_PULLUP);

pinMode(bt4,INPUT_PULLUP);

pinMode(bt5,INPUT_PULLUP);

pinMode(ssr,OUTPUT);

pinMode(buzzer,OUTPUT);

pinMode(motor1,OUTPUT);

pinMode(motor2,OUTPUT);

digitalWrite(buzzer,LOW);

}

void loop() {

analogWrite(motor1,200);

analogWrite(motor2,0);

temp1 = thermocouple.readCelsius();

temp2 = thermocouple1.readCelsius();

bt1x = digitalRead(bt1);

bt2x = digitalRead(bt2);

bt3x = digitalRead(bt3);

bt4x = digitalRead(bt4);

bt5x = digitalRead(bt5);

lcd.setCursor(0,0);

lcd.print("T: ");

lcd.print(temp1);

lcd.print(" / ");

lcd.print(temp2);

lcd.print(" ");

lcd.setCursor(0,1);

lcd.print("W: ");

lcd.print(waktu);

lcd.print(" P: ");

lcd.print(sp);

lcd.print(" ");

if(temp1 <= sp){

digitalWrite(ssr,LOW);

//digitalWrite(buzzer,LOW);

}

if(temp1 > sp){

digitalWrite(ssr,HIGH);

//digitalWrite(buzzer,HIGH);

}

if(bt1x == 0){

lcd.clear();

waktu = 3000;

mode = 1;

sp = 205;

countx = 180;

mulai();

}

if(bt2x == 0){

lcd.clear();

waktu = 4500;

mode = 2;

sp = 230;

countx = 225;

mulai();

}

if(bt3x == 0){

lcd.clear();

waktu = 6000;

mode = 3;

sp = 250;

countx = 240;

mulai();

}

delay(200);

}

void mulai(){

temp1 = thermocouple.readCelsius();

temp2 = thermocouple1.readCelsius();

bt5x = digitalRead(bt5);

if(temp1 < sp){

digitalWrite(ssr,LOW);

digitalWrite(buzzer,LOW);

}

if(temp1 > sp){

digitalWrite(ssr,HIGH);

digitalWrite(buzzer,HIGH);

}

lcd.setCursor(0,0);

lcd.print("T: ");

lcd.print(temp1);

lcd.print(" / ");

lcd.print(temp2);

lcd.print(" ");

lcd.print(counter);

lcd.setCursor(0,1);

lcd.print("W: ");

lcd.print(waktu);

lcd.print(" P: ");

lcd.print(sp);

lcd.print(" ");

if(temp1 >= countx){

counter++;

}

if(counter > waktu){

counter = 0;

waktu = 0;

sp = 150;

digitalWrite(ssr,HIGH);

lcd.clear();

return;

}

if(bt5x == 0){

counter = 0;

waktu = 0;

sp = 150;

digitalWrite(ssr,HIGH);

lcd.clear();

return;

}

delay(200);

mulai();

}

g. VIDEO HASILNYA

Tutorial Setup Blynk untuk Arduino / Nodemcu ESP8266 / Wemos D1

Pada kesempatan kali ini saya akan menjelaskan mengenai step by step setup blynk agar terhubung ke arduino melalui internet. caranya sangatlah mudah yang pertama yaitu harus instal terlebih dahulu aplikasi blynknya bisa di playstore atau di Appstore. setelah instal aplikasinya teman-teman bisa ikuti cara lebih jelasnya yang ada di video dibawah ini. untuk koding contohnya bisa saya kasih lihat seperti dibawah ini.

a. Nodemcu ESP8266 / Wemos D1

b. Contoh Program Arduino

#include <Wire.h>

#define BLYNK_PRINT Serial

#include <SPI.h>

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include <SimpleTimer.h>

#include "MAX30105.h"

#include <LiquidCrystal_I2C.h>

#include "heartRate.h"

#include <Adafruit_MLX90614.h>

LiquidCrystal_I2C lcd(0x27, 16,2);

MAX30105 particleSensor;

Adafruit_MLX90614 mlx = Adafruit_MLX90614();

float TargetC;

const byte RATE_SIZE = 4; //Increase this for more averaging. 4 is good.

byte rates[RATE_SIZE]; //Array of heart rates

byte rateSpot = 0;

long lastBeat = 0; //Time at which the last beat occurred

float beatsPerMinute;

int beatAvg;

int counter;

char auth[] = "hgjhgjTJUIYRgfhjjhrerewiuoiuokjhkjgfh";

char ssid[] = "myHotspot";

char pass[] = "1234567";

SimpleTimer timer;

const int speakerPin = 12;

int ledmerah = 14;

int ledhijau = 2;

void sendSensor()

{

Blynk.virtualWrite(V5, TargetC);

Blynk.virtualWrite(V6, beatsPerMinute);

delay(1000);

}

void setup()

{

lcd.clear();

lcd.begin();

lcd.noCursor();

Serial.begin(115200);

Serial.println("Initializing...");

pinMode(ledmerah,OUTPUT);

pinMode(ledhijau,OUTPUT);

pinMode(speakerPin, OUTPUT);

digitalWrite(ledmerah,LOW);

digitalWrite(ledhijau,LOW);

Blynk.begin(auth, ssid, pass);

timer.setInterval(1000L, sendSensor);

}

void loop()

{

// Initialize sensor

if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) //Use default I2C port, 400kHz speed

{

Serial.println("MAX30105 was not found. Please check wiring/power. ");

while (1);

}

Serial.println("Place your index finger on the sensor with steady pressure.");

particleSensor.setup(); //Configure sensor with default settings

particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running

particleSensor.setPulseAmplitudeGreen(0); //Turn off Green LED

long irValue = particleSensor.getIR();

if (checkForBeat(irValue) == true)

{

//We sensed a beat!

long delta = millis() - lastBeat;

lastBeat = millis();

beatsPerMinute = 60 / (delta / 1000.0);

if (beatsPerMinute < 255 && beatsPerMinute > 20)

{

rates[rateSpot++] = (byte)beatsPerMinute; //Store this reading in the array

rateSpot %= RATE_SIZE; //Wrap variable

//Take average of readings

beatAvg = 0;

for (byte x = 0 ; x < RATE_SIZE ; x++)

beatAvg += rates[x];

beatAvg /= RATE_SIZE;

}

counter++;

if(counter > 100){

counter = 0;

mlx.begin();

TargetC = mlx.readObjectTempC();

lcd.setCursor(0,1);

lcd.print("Temp= ");

lcd.print(TargetC);

lcd.println(" 'C ");

if (TargetC <= 37.5) {

digitalWrite(speakerPin, LOW);

digitalWrite(ledmerah,LOW);

digitalWrite(ledhijau,HIGH);

}

if (TargetC > 37.5 ) {

digitalWrite(speakerPin, HIGH);

digitalWrite(ledmerah,HIGH);

digitalWrite(ledhijau,LOW);

delay (3000);

}

Blynk.run();

timer.run();

}

lcd.setCursor(0,0);

lcd.print("BPM= ");

lcd.print(beatsPerMinute);

lcd.println(" ");

Serial.print("IR=");

Serial.print(irValue);

Serial.print(", BPM=");

Serial.print(beatsPerMinute);

Serial.print(", Avg BPM=");

Serial.print(beatAvg);

if (irValue < 50000)

Serial.print(" No finger?");

Serial.println();

}

c. VIDEO TUTORIAL

.

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Monitor dan Kendali Suhu Menggunakan PID Thermocouple Tipe K

Monitor Kadar Oksigen dalam Darah (SPO2) ONLINE Thingspeak

Monitor dan Kendali Suhu Kompor Listrik Menggunakan Arduino dan Thermocouple Tipe K

Tutorial Setup Blynk untuk Arduino / Nodemcu ESP8266 / Wemos D1