.

Monitor Water Flow dan Pressure

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat memonitor flow air dan tekanan udara atau air secara bersamaan dengan menggunakan lcd. alat ini menggunakan 2 buah sensor dan satu arduino. untuk lebih jelasnya berikut adalah proram dan daftar komponennya.

a. Arduino Uno

b. Sensor Water Flow

c. Sensor Pressure

d. LCD 16x2

e. Program Arduino IDE

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

int dataadc;
int x;
float v;
float kpa;

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

float calibrationFactor = 4.5;

volatile byte pulseCount;

unsigned int frac;
float flowRate;
unsigned int flowMilliLitres;
float totalMilliLitres;

unsigned long oldTime;
float pressure_pascal;
float pressure_bar;

void setup() {
lcd.begin();
lcd.clear();
lcd.noCursor();

pinMode(sensorPin, INPUT);
digitalWrite(sensorPin, HIGH);

pulseCount        = 0;
flowRate          = 0.0;
flowMilliLitres   = 0;
totalMilliLitres = 0;
oldTime           = 0;

attachInterrupt(sensorInterrupt, pulseCounter, FALLING);

}

void loop() {

if((millis() - oldTime) > 1000)
{

    detachInterrupt(sensorInterrupt);
    flowRate = ((1000.0 / (millis() - oldTime)) * pulseCount) / calibrationFactor;
    oldTime = millis();
    flowMilliLitres = (flowRate / 60) * 1000;
    totalMilliLitres += flowMilliLitres;

    pulseCount = 0;

    attachInterrupt(sensorInterrupt, pulseCounter, FALLING);
}

x = analogRead(A0);
v = x*(5.0/1023.0);

pressure_pascal = (3.0*(v-0.47))*1000000.0;
pressure_bar = pressure_pascal/10e5;

lcd.setCursor(0, 0);
lcd.print("Bar= ");
lcd.print(pressure_bar);
lcd.print("   ");

lcd.setCursor(0, 1);
lcd.print("ml/s= ");
lcd.print(flowMilliLitres);
lcd.print("   ");

delay(200);
}

void pulseCounter()
{
pulseCount++;
}

f. VIDEO HASILNYA

Monitor Bpm dan SPO2 ONLINE Server Thingspeak

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat memonitor BPM dan SPO2 secara ONLINE dengan menggunakan server Thingspeak, alat ini menggunakan wemos D1 dan sensor max30100. untuk lebih jelasnya berikut adalah koding dan daftar komponennya.

a. Wemos D1

b. Max30100

c. Program Arduino IDE versi 1

#include <ThingSpeak.h>
#include <ESP8266WiFi.h>
#include <Wire.h>
#include "MAX30100.h" //library sensor
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2); //library lcd
WiFiClient client;
// ThingSpeak Settings
String apiKey = "GHGFT76GFHGCFDOIOI";
const char *ssid = "Hotspot wifiku";
const char *pass = "12345678";
const char* server = "api.thingspeak.com";
MAX30100* pulseOxymeter; //library
int counter; //membuat variabel
float Spo;
float bpm;
void setup() {
//seting lcd dan serial
Wire.begin();
Serial.begin(115200);
lcd.begin();
lcd.clear();
//setting ke online
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(){
//ambil data sensor
pulseoxymeter_t result = pulseOxymeter->update();
//jika terdeteksi nilai maka tampil ke lcd
if( result.pulseDetected == true ){
//tampil ke lcd
lcd.setCursor(0,0);
lcd.print( "SpO2: " );
lcd.print( result.SaO2);
lcd.println( " % ");

lcd.setCursor(0,1);
lcd.print( "BPM: " );
lcd.print( result.heartBPM);
lcd.println( " ");

Spo = result.SaO2;
bpm = result.heartBPM;

}
/*
//jika spo lebih dr 100
if(Spo > 100){
lcd.setCursor(11,0);
lcd.print("HIPER ");
}
//jika spo kurang dr 80
if(Spo < 80){
lcd.setCursor(11,0);
lcd.print("HIPO ");
}
//jika nilai diantara 80 - 100
if((Spo > 80)&&(Spo < 100)){
lcd.setCursor(11,0);
lcd.print("NORMAL");
}
*/
//untuk menghitung looping
counter++;
if(counter > 100){ //jika loop sudan lebih dr 100
counter = 0; //reset nilai
if(client.connect(server, 80)){ //kirim ke thingspeak
String postStr= apiKey;
postStr += "&field1=";
postStr += String(Spo);
postStr += "&field2=";
postStr += String(bpm);
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);
}
}

d. Program Arduino Versi 2

#include <ThingSpeak.h>

#include <ESP8266WiFi.h>

#include <Wire.h>

#include <MAX30100_PulseOximeter.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2); //library lcd

#define REPORTING_PERIOD_MS 5000

WiFiClient client;

// ThingSpeak Settings

String apiKey = "FHGHGF78G456FDFH";

const char *ssid = "Hotspot Wifiku";

const char *pass = "12345678";

const char* server = "api.thingspeak.com";

MAX30100* pulseOxymeter; //library

int counter; //membuat variabel

int spo;

float bpm;

// PulseOximeter is the higher level interface to the sensor

// it offers:

// * beat detection reporting

// * heart rate calculation

// * SpO2 (oxidation level) calculation

PulseOximeter pox;

uint32_t tsLastReport = 0;

String hrData = "";

//unsigned long timems =0;

// Callback (registered below) fired when a pulse is detected

void onBeatDetected()

{

Serial.println("Beat!");

}

void setup() {

//seting lcd dan serial

Wire.begin();

Serial.begin(115200);

lcd.begin();

lcd.clear();

pinMode(D7,OUTPUT);

digitalWrite(D7,HIGH);

//setting ke online

Serial.println("Connecting to ");

Serial.println(ssid);

WiFi.begin(ssid, pass);

while (WiFi.status() != WL_CONNECTED){\

delay(200);

Serial.println(".");

}

Serial.println("");

Serial.println("WiFi connected");

Serial.print("Initializing pulse oximeter..");

// Initialize the PulseOximeter instance

// Failures are generally due to an improper I2C wiring, missing power supply

// or wrong target chip

if (!pox.begin()) {

Serial.println("FAILED");

for(;;);

} else {

Serial.println("SUCCESS");

}

// The default current for the IR LED is 50mA and it could be changed

// by uncommenting the following line. Check MAX30100_Registers.h for all the

// available options.

pox.setIRLedCurrent(MAX30100_LED_CURR_11MA);

// Register a callback for the beat detection

pox.setOnBeatDetectedCallback(onBeatDetected);

}

void loop(){

pox.update();

if (millis() - tsLastReport > REPORTING_PERIOD_MS) {

bpm = pox.getHeartRate();

spo = pox.getSpO2();

lcd.setCursor(0,1);

lcd.print("SpO2: ");

lcd.print(pox.getSpO2());

lcd.print(" % ");

lcd.setCursor(0,0);

lcd.print("Bpm : ");

lcd.print(pox.getHeartRate());

counter++;

lcd.print(" ");

//lcd.print(counter);

tsLastReport = millis();

}

if((bpm > 50)&&(spo > 0)){

counter = 0;

kirim();

}

if(counter > 10){ //jika loop sudan lebih dr 100

counter = 0; //reset nilai

kirim();

}

delay(10);

}

void kirim(){

if(client.connect(server, 80)){ //kirim ke thingspeak

String postStr= apiKey;

postStr += "&field1=";

postStr += String(spo);

postStr += "&field2=";

postStr += String(bpm);

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);

digitalWrite(D7,LOW);

}

e. VIDEO HASILNYA

Alat Monitor Arus dan Pembatas Arus Berlebih / Maksimal

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara untuk membuat alat untuk memonitor arus dan juga terdapat fitur pembatas arus berlebih, alat ini menggunakan sensor pzem-004t dan kendali menggunakan SSR / solid state relay. untuk lebih jelasnya berikut adalah daftar komponen dan kodingnya.

a. Arduino Mega

b. Sensor PZEM-004t

c. Solid State Relay / SSR

d. Keypad 4x4

e. lcd 16x2 + i2c

f. Koding Arduino IDE Versi 1

#include <Wire.h>
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <PZEM004Tv30.h>

PZEM004Tv30 pzem1(11,12);
PZEM004Tv30 pzem2(A8, A9);

LiquidCrystal_I2C lcd(0x27, 16, 2);

int relay1 = 2;
int relay2 = 3;
int led1 = 4;
int led2 = 5;
int buzzer1 = 6;
int buzzer2 = 7;

int arus1 = 0;
float arusx1;
int arus2 = 0;
float arusx2;

float voltage1;
float current1;

float voltage2;
float current2;

char customKey;
const byte ROWS = 4;
const byte COLS = 4;

char keys[ROWS][COLS] = {
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {A12,A14,32,34}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {36,38,40,42}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup()
{

pinMode(relay1, OUTPUT);
digitalWrite(relay1, LOW);
pinMode(led1, OUTPUT);
digitalWrite(led1, HIGH);
pinMode(buzzer1, OUTPUT);
digitalWrite(buzzer1, HIGH);

pinMode(relay2, OUTPUT);
digitalWrite(relay2, LOW);
pinMode(led2, OUTPUT);
digitalWrite(led2, HIGH);
pinMode(buzzer2, OUTPUT);
digitalWrite(buzzer2, HIGH);

lcd.begin();
lcd.noCursor();
lcd.clear();
Serial.begin(9600);

}

void loop()
{

    voltage1 = pzem1.voltage();
    current1 = pzem1.current();

    voltage2 = pzem2.voltage();
    current2 = pzem2.current();

    lcd.setCursor(0,0);
    lcd.print("I= ");
    lcd.print(current1,2);
    lcd.print(" / ");
    lcd.print(arusx1,2);
    lcd.print("     ");

    lcd.setCursor(0,1);
    lcd.print("I= ");
    lcd.print(current2,2);
    lcd.print(" / ");
    lcd.print(arusx2,2);
    lcd.print("     ");

    customKey = customKeypad.getKey();

    if(customKey == 'A'){
    lcd.clear();
    delay(1000);
    arus1 = 0;
    arusx1 = 0;
    arus2 = 0;
    arusx2 = 0;
    setting1();
    lcd.clear();
    delay(1000);
    setting2();
    }

    if((current1 > arusx1)&&(arusx1 > 0)){
      digitalWrite(relay1,HIGH);
      digitalWrite(buzzer1,LOW);
      digitalWrite(led1,LOW);
      }

    if((current1 < arusx1)&&(arusx1 > 0)){
      digitalWrite(relay1,LOW);
      digitalWrite(buzzer1,HIGH);
      digitalWrite(led1,HIGH);
      }

    if((current2 > arusx2)&&(arusx2 > 0)){
      digitalWrite(relay2,HIGH);
      digitalWrite(buzzer2,LOW);
      digitalWrite(led2,LOW);
      }

    if((current2 < arusx2)&&(arusx2 > 0)){
      digitalWrite(relay2,LOW);
      digitalWrite(buzzer2,HIGH);
      digitalWrite(led2,HIGH);
      }

   delay(200);
}

void setting1(){

lcd.setCursor(0,0);
lcd.print("Set Max Arus 1");

customKey = customKeypad.getKey();

if(customKey >= '0' && customKey <= '9')
{
      arus1 = arus1 * 10 + (customKey - '0');
      lcd.setCursor(0,1);
      lcd.print(arus1);
}

    if(customKey == 'A')
{
   arusx1 = 0;
   arus1 = 0;
   lcd.clear();
   delay(1000);
}

if(customKey == 'B')
{
   arusx1 = arus1 / 1.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'C')
{
   arusx1 = arus1 / 10.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'D')
{
   arusx1 = arus1 / 100.0;
   lcd.clear();
   delay(1000);
   return;
}

setting1();
}

void setting2(){

lcd.setCursor(0,0);
lcd.print("Set Max Arus 2");

customKey = customKeypad.getKey();

if(customKey >= '0' && customKey <= '9')
{
      arus2 = arus2 * 10 + (customKey - '0');
      lcd.setCursor(0,1);
      lcd.print(arus2);
}

    if(customKey == 'A')
{
   arusx2 = 0;
   arus2 = 0;
   lcd.clear();
   delay(1000);
}

if(customKey == 'B')
{
   arusx2 = arus2 / 1.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'C')
{
   arusx2 = arus2 / 10.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'D')
{
   arusx2 = arus2 / 100.0;
   lcd.clear();
   delay(1000);
   return;
}

setting2();
}

g. Koding Arduuino IDE Versi 2

#include <Wire.h>
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <PZEM004Tv30.h>

PZEM004Tv30 pzem1(11,12);
PZEM004Tv30 pzem2(A8, A9);

LiquidCrystal_I2C lcd(0x27, 16, 2);

int relay1 = 2;
int relay2 = 3;
int led1 = 4;
int led2 = 5;
int buzzer1 = 6;
int buzzer2 = 7;

int arus1 = 0;
float arusx1;
int arus2 = 0;
float arusx2;

float voltage1;
float current1;

float voltage2;
float current2;

char customKey;
const byte ROWS = 4;
const byte COLS = 4;

char keys[ROWS][COLS] = {
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {A12,A14,32,34}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {36,38,40,42}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup()
{

pinMode(relay1, OUTPUT);
digitalWrite(relay1, LOW);
pinMode(led1, OUTPUT);
digitalWrite(led1, HIGH);
pinMode(buzzer1, OUTPUT);
digitalWrite(buzzer1, HIGH);

pinMode(relay2, OUTPUT);
digitalWrite(relay2, LOW);
pinMode(led2, OUTPUT);
digitalWrite(led2, HIGH);
pinMode(buzzer2, OUTPUT);
digitalWrite(buzzer2, HIGH);

lcd.begin();
lcd.noCursor();
lcd.clear();
Serial.begin(9600);

}

void loop()
{

    voltage1 = pzem1.voltage();
    current1 = pzem1.current();

    voltage2 = pzem2.voltage();
    current2 = pzem2.current();

    lcd.setCursor(0,0);
    lcd.print("I= ");
    lcd.print(current1,2);
    lcd.print(" / ");
    lcd.print(arusx1,2);
    lcd.print("     ");

    lcd.setCursor(0,1);
    lcd.print("I= ");
    lcd.print(current2,2);
    lcd.print(" / ");
    lcd.print(arusx2,2);
    lcd.print("     ");

    customKey = customKeypad.getKey();

    if(customKey == 'A'){
    lcd.clear();
    delay(1000);
    arus1 = 0;
    arusx1 = 0;
    arus2 = 0;
    arusx2 = 0;
    setting1();
    lcd.clear();
    delay(1000);
    setting2();
    }

    if((current1 > arusx1)&&(arusx1 > 0)){
      digitalWrite(relay1,HIGH);
      digitalWrite(buzzer1,LOW);
      digitalWrite(led1,LOW);
      delay(1000);
      digitalWrite(relay1,LOW);
      }

    if((current1 < arusx1)&&(arusx1 > 0)){
      digitalWrite(relay1,LOW);
      digitalWrite(buzzer1,HIGH);
      digitalWrite(led1,HIGH);
      }

    if((current2 > arusx2)&&(arusx2 > 0)){
      digitalWrite(relay2,HIGH);
      digitalWrite(buzzer2,LOW);
      digitalWrite(led2,LOW);
      delay(1000);
      digitalWrite(relay2,LOW);
      }

    if((current2 < arusx2)&&(arusx2 > 0)){
      digitalWrite(relay2,LOW);
      digitalWrite(buzzer2,HIGH);
      digitalWrite(led2,HIGH);
      }

   delay(200);
}

void setting1(){

lcd.setCursor(0,0);
lcd.print("Set Max Arus 1");

customKey = customKeypad.getKey();

if(customKey >= '0' && customKey <= '9')
{
      arus1 = arus1 * 10 + (customKey - '0');
      lcd.setCursor(0,1);
      lcd.print(arus1);
}

    if(customKey == 'A')
{
   arusx1 = 0;
   arus1 = 0;
   lcd.clear();
   delay(1000);
}

if(customKey == 'B')
{
   arusx1 = arus1 / 1.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'C')
{
   arusx1 = arus1 / 10.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'D')
{
   arusx1 = arus1 / 100.0;
   lcd.clear();
   delay(1000);
   return;
}

setting1();
}

void setting2(){

lcd.setCursor(0,0);
lcd.print("Set Max Arus 2");

customKey = customKeypad.getKey();

if(customKey >= '0' && customKey <= '9')
{
      arus2 = arus2 * 10 + (customKey - '0');
      lcd.setCursor(0,1);
      lcd.print(arus2);
}

    if(customKey == 'A')
{
   arusx2 = 0;
   arus2 = 0;
   lcd.clear();
   delay(1000);
}

if(customKey == 'B')
{
   arusx2 = arus2 / 1.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'C')
{
   arusx2 = arus2 / 10.0;
   lcd.clear();
   delay(1000);
   return;
}

if(customKey == 'D')
{
   arusx2 = arus2 / 100.0;
   lcd.clear();
   delay(1000);
   return;
}

setting2();
}

h. VIDEO HASILNYA

Automatic Pet Feeder dengan Input Waktu via Handphone

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat digunakan untuk memberi pakan hewan dengan fitur bisa input waktu menggunakan handphone android. alat ini berbasis arduino dengan media transfer data melalui bluetooth. untuk lebih jelasnya berikut adalah daftar komponen dan programnya

a. Arduino Uno

b. Bluetooth HC-05

c. Mini Servo

d. Lcd + I2C

e. Motor Stepper

f. RTC DS3231

g. Program Android

h. Program Arduino IDE

#include <Wire.h> // i2C Conection Library
#include <LiquidCrystal_I2C.h> //i2C LCD Library
#include <Servo.h>
#include <DS3231.h>
#define DS3231_I2C_ADDRESS 0x68

LiquidCrystal_I2C lcd(0x27, 16, 2); //lcd masuk ke pin sda dan scl arduino

DS3231 rtc(SDA, SCL);

//pin stepper masuk ke pin 8,10,11,12
int IN1 = 8;
int IN2 = 10;
int IN3 = 11;
int IN4 = 12;
int delaytime = 10; //makin kecil delay, makin cepat motor berputar
int i;

int mark;
String dataku;
int jampagi;
int jamsore;
int jammalam;
int delayjampagi;
int delayjamsore;
int delayjammalam;

Servo myservo1;
Time t;

void setup()
{
pinMode(IN1,OUTPUT);
pinMode(IN2,OUTPUT);
pinMode(IN3,OUTPUT);
pinMode(IN4,OUTPUT);

myservo1.attach(9); //servo masuk ke pin 9 arduino
myservo1.write(10);

Serial.begin(9600);
lcd.begin();
lcd.clear();
//lcd.noCursor();

rtc.begin();

// The following lines can be uncommented to set the date and time
//rtc.setDOW(WEDNESDAY);     // Set Day-of-Week to WEDNESDAY
//rtc.setTime(13, 11, 0);     // Set the time to 12:00:00 (24hr format)
//rtc.setDate(23, 06, 2021);   // Set the date to January 16st, 2021

}

void loop()
{

t = rtc.getTime();

lcd.setCursor(0, 0);
lcd.print(t.hour, DEC);
lcd.print(":");
lcd.print(t.min, DEC);
lcd.print(":");
lcd.print(t.sec, DEC);
lcd.print("   ");

delay (1000);

if (Serial.available() > 0)
{

dataku = Serial.readString();

if(dataku.startsWith("x"))
{
   dataku.replace("x", "");
   jampagi = dataku.toInt();
}

if(dataku.startsWith("y"))
{
   dataku.replace("y", "");
   jamsore = dataku.toInt();
}

if(dataku.startsWith("z"))
{
   dataku.replace("z", "");
   jammalam = dataku.toInt();
}

if(dataku.startsWith("a"))
{
   dataku.replace("a", "");
   delayjampagi = dataku.toInt();
}

if(dataku.startsWith("b"))
{
   dataku.replace("b", "");
   delayjamsore = dataku.toInt();
}

if(dataku.startsWith("c"))
{
   dataku.replace("c", "");
   delayjammalam = dataku.toInt();
}

lcd.setCursor(0, 1);
lcd.print(jampagi);
lcd.print("/");
lcd.print(jamsore);
lcd.print("/");
lcd.print(jammalam);
lcd.print("    ");

lcd.setCursor(10,1);
lcd.print(delayjampagi/1000);
lcd.print("/");
lcd.print(delayjamsore/1000);
lcd.print("/");
lcd.print(delayjammalam/1000);
lcd.print("    ");

}

if((t.hour == jampagi)&&(mark == 0)){
myservo1.write(40); //buka servo
delay(delayjampagi);
myservo1.write(10); //tutup servo
mark = 1;
//stepper putar 4*100 step
for ( i=0; i<100; i++){
maju();
}
}

if((t.hour == jamsore)&&(mark == 1)){
myservo1.write(40); //buka servo
delay(delayjamsore);
myservo1.write(10); //tutup servo
mark = 2;
//stepper putar 4*100 step
for ( i=0; i<100; i++){
maju();
}
}

if((t.hour == jammalam)&&(mark == 2)){
myservo1.write(40); //buka servo
delay(delayjammalam);
myservo1.write(10); //tutup servo
mark = 0;
//stepper putar 4*100 step
for ( i=0; i<100; i++){
maju();
}
}

}

void maju(){
//step 4
step1();
delay(delaytime);
//step 3
step2();
delay(delaytime);
//step 2
step3();
delay(delaytime);
//step 1
step4();
delay(delaytime);
}

void mundur(){
//step 4
step4();
delay(delaytime);
//step 3
step3();
delay(delaytime);
//step 2
step2();
delay(delaytime);
//step 1
step1();
delay(delaytime);
}

void step1(){
digitalWrite(IN1,LOW);
digitalWrite(IN2,LOW);
digitalWrite(IN3,HIGH);
digitalWrite(IN4,HIGH);
}
void step2(){
digitalWrite(IN1,HIGH);
digitalWrite(IN2,LOW);
digitalWrite(IN3,LOW);
digitalWrite(IN4,HIGH);
}
void step3(){
digitalWrite(IN1,HIGH);
digitalWrite(IN2,HIGH);
digitalWrite(IN3,LOW);
digitalWrite(IN4,LOW);
}
void step4(){
digitalWrite(IN1,LOW);
digitalWrite(IN2,HIGH);
digitalWrite(IN3,HIGH);
digitalWrite(IN4,LOW);
}

i. VIDEO HASILNYA

AUDIOMETRI (Alat Test / Cek Pendengaran) ARDUINO

Membuat Alat Audiometri (Alat Test / Cek Pendengaran) Menggunakan Arduino

() Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang digunakan untuk melakukan test pendengaran seseorang, alat ini menggunakan arduino dan outputnya menggunakan headset. interface alat ini menggunakan LCD dan kendali menggunakan 4 buah pushbutton. untuk lebih jelasnya berikut adalah program dan daftar komponennya.

a. Arduino Uno

b. LCD I2C

c. Headset

d. Program Arduino IDE

#include <PWM.h>

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);

int bt1 = 7;

int bt2 = 6;

int bt3 = 5;

int bt4 = 4;

int bt1x = 0;

int bt2x = 0;

int bt3x = 0;

int bt4x = 0;

int cacah = 1;

//use pin 11 on the Mega instead, otherwise there is a frequency cap at 31 Hz

int pwmpin = 9; // the pin that the LED is attached to

int duty = 125; // duty cycle

void setup()

{

lcd.begin();

lcd.clear();

pinMode(bt1,INPUT_PULLUP);

pinMode(bt2,INPUT_PULLUP);

pinMode(bt3,INPUT_PULLUP);

pinMode(bt4,INPUT_PULLUP);

InitTimersSafe();

Serial.begin(9600);

}

void loop()

{

bt1x = digitalRead(bt1);

bt2x = digitalRead(bt2);

bt3x = digitalRead(bt3);

bt4x = digitalRead(bt4);

if(bt1x == 0){

delay(200);

cacah++;

}

if(bt2x == 0){

delay(200);

cacah--;

}

if(cacah < 1){

cacah = 1;

}

if(cacah > 9){

cacah = 9;

}

if((cacah == 1)&&(bt3x == 0)){

mode1();

}

if((cacah == 2)&&(bt3x == 0)){

mode2();

}

if((cacah == 3)&&(bt3x == 0)){

mode3();

}

if((cacah == 4)&&(bt3x == 0)){

mode4();

}

if((cacah == 5)&&(bt3x == 0)){

mode5();

}

if((cacah == 6)&&(bt3x == 0)){

mode6();

}

if((cacah == 7)&&(bt3x == 0)){

mode7();

}

if((cacah == 8)&&(bt3x == 0)){

mode8();

}

if(cacah == 1){

lcd.setCursor(0,0);

lcd.print(">20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 2){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(">30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 3){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(">40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 4){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(">50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 5){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(">60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 6){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(">70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 7){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(">80 DB");

lcd.setCursor(12,3);

lcd.print(" 90 DB");

}

if(cacah == 8){

lcd.setCursor(0,0);

lcd.print(" 20 DB");

lcd.setCursor(0,1);

lcd.print(" 30 DB");

lcd.setCursor(0,2);

lcd.print(" 40 DB");

lcd.setCursor(0,3);

lcd.print(" 50 DB");

lcd.setCursor(12,0);

lcd.print(" 60 DB");

lcd.setCursor(12,1);

lcd.print(" 70 DB");

lcd.setCursor(12,2);

lcd.print(" 80 DB");

lcd.setCursor(12,3);

lcd.print(">90 DB");

}

pwmWrite(pwmpin, 0);

delay(20);

}

void mode1(){

bt4x = digitalRead(bt4);

int32_t frequency = 100; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(0,0);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode1();

}

void mode2(){

bt4x = digitalRead(bt4);

int32_t frequency = 200; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(0,1);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode2();

}

void mode3(){

bt4x = digitalRead(bt4);

int32_t frequency = 300; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(0,2);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode3();

}

void mode4(){

bt4x = digitalRead(bt4);

int32_t frequency = 400; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(0,3);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode4();

}

void mode5(){

bt4x = digitalRead(bt4);

int32_t frequency = 500; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(12,0);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode5();

}

void mode6(){

bt4x = digitalRead(bt4);

int32_t frequency = 600; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(12,1);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode6();

}

void mode7(){

bt4x = digitalRead(bt4);

int32_t frequency = 700; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(12,2);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode7();

}

void mode8(){

bt4x = digitalRead(bt4);

int32_t frequency = 800; //frequency (in Hz)

bool success = SetPinFrequencySafe(pwmpin, frequency);

lcd.setCursor(12,3);

lcd.print(" Running..");

pwmWrite(pwmpin, duty);

if(bt4x == 0){

lcd.clear();

return;

}

mode8();

}

e. VIDEO HASILNYA

Monitor Jarak Secara ONLINE Thingspeak

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat memonitoring jarak secara online jarak jauh dengan menggunakan webserver Thingspeak. alat ini menggunakan 3 buah sensor HC-SRF04 dan wemos D1 sebagai mikrokontrollernya. untuk lebih jelasnya berikut adalah daftar komponen dan programnya.

a. Wemos D1

b. LCD I2C

c. Sensor Jarak HC-SRF04

d. Program Arduino IDE

#define BLYNK_PRINT Serial
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

#define trigPin1 D0
#define echoPin1 D3
#define trigPin2 D5
#define echoPin2 D6
#define trigPin3 D7
#define echoPin3 D8

long duration1, distance1;
long duration2, distance2;
long duration3, distance3;

String apiKey = "456FHJVCD9HGTSFGG";     // Enter your Write API key from ThingSpeak
const char* resource = "/update?api_key=";

const char *ssid = "Hotspot WIFIKU";     // replace with your wifi ssid and wpa2 key
const char *pass = "123456789";
const char* server = "api.thingspeak.com";

WiFiClient client;

void setup() {

Serial.begin(115200);
delay(10);

Serial.println("Connecting to ");
Serial.println(ssid);

// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

WiFi.begin(ssid, pass);

while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");

      while (WiFi.status() != WL_CONNECTED)
     {
            delay(500);
            Serial.print(".");
     }
      Serial.println("");
      Serial.println("WiFi connected");

lcd.begin();
lcd.clear();
pinMode(trigPin1, OUTPUT);
pinMode(echoPin1, INPUT);
pinMode(trigPin2, OUTPUT);
pinMode(echoPin2, INPUT);
pinMode(trigPin3, OUTPUT);
pinMode(echoPin3, INPUT);

}

void loop() {

digitalWrite(trigPin1, LOW); // Added this line
delayMicroseconds(2); // Added this line
digitalWrite(trigPin1, HIGH);
delayMicroseconds(10); // Added this line
digitalWrite(trigPin1, LOW);
duration1 = pulseIn(echoPin1, HIGH);
distance1 = (duration1/2) / 29.1;

digitalWrite(trigPin2, LOW); // Added this line
delayMicroseconds(2); // Added this line
digitalWrite(trigPin2, HIGH);
delayMicroseconds(10); // Added this line
digitalWrite(trigPin2, LOW);
duration2 = pulseIn(echoPin2, HIGH);
distance2 = (duration2/2) / 29.1;

digitalWrite(trigPin3, LOW); // Added this line
delayMicroseconds(2); // Added this line
digitalWrite(trigPin3, HIGH);
delayMicroseconds(10); // Added this line
digitalWrite(trigPin3, LOW);
duration3 = pulseIn(echoPin3, HIGH);
distance3 = (duration3/2) / 29.1;

lcd.setCursor(0,0);
lcd.print("S1:");
lcd.print(distance1);
lcd.print(" S2:");
lcd.print(distance2);
lcd.print("   ");
lcd.setCursor(0,1);
lcd.print("S3:");
lcd.print(distance3);
lcd.print("   ");

if (client.connect(server,80))   //   "184.106.153.149" or api.thingspeak.com
{

    String postStr = apiKey;
           postStr +="&field4=";
           postStr += String(distance1);
           postStr += "\r\n\r\n";

           client.print(String("GET ") + resource + apiKey + "&field4=" + distance1 + "&field5=" + distance2 + "&field6=" + distance3 +" HTTP/1.1\r\n" + "Host: " + server + "\r\n" + "Connection: close\r\n\r\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(". Send to Thingspeak.");
    }

          client.stop();

          Serial.println("Waiting...");

delay(10000);
}

e. VIDEO HASILNYA

Alat Monitoring Sudut Kemiringan Dataran (Tilt Level) ONLINE BLYNK

Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat digunakan untuk monitoring sudut kemiringan dataran secara online dengan menggunakan blynk sebagai aplikasi untuk pemantauannya. untuk lebih jelasnya berikut adalah daftar komponen dan kodingnya.

a. Nodemcu ESP8266

b. Sensor Potensio Slider

c. Sensor Tilt

d. Sensor Accelero MPU-6050

e. Program Arduino IDE

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

#define BLYNK_PRINT Serial

#include <SPI.h>

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include <SimpleTimer.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

char auth[] = "hgu6576576gjhvjhgk9898gfalikgh8977hbh";

char ssid[] = "MyHotspot";

char pass[] = "123456789";

const int MPU_addr=0x68; // I2C address of the MPU-6050

int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;

SimpleTimer timer;

int out;

int miring = 16 ;

int bacaSensor;

const int analogInPin = A0; // Analog input pin that the potentiometer is attached to

int nilai;

int buzzer = D3;

float sudut;

void sendSensor()

{

Blynk.virtualWrite(V4, sudut);

Blynk.virtualWrite(V6, bacaSensor);

Blynk.virtualWrite(V5, out);

delay(1000);

}

void setup(){

Serial.begin(9600);

lcd.begin();

lcd.clear();

pinMode(miring, INPUT);

pinMode(buzzer, OUTPUT);

Blynk.begin(auth, ssid, pass);

timer.setInterval(100L, sendSensor);

Wire.begin();

Wire.beginTransmission(MPU_addr);

Wire.write(0x6B); // PWR_MGMT_1 register

Wire.write(0); // set to zero (wakes up the MPU-6050)

Wire.endTransmission(true);

digitalWrite(buzzer, LOW);

}

void loop(){

Wire.beginTransmission(MPU_addr);

Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)

Wire.endTransmission(false);

Wire.requestFrom(MPU_addr,14,true); // request a total of 14 registers

AcX=Wire.read()<<8|Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)

AcY=Wire.read()<<8|Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)

Serial.print(AcX); Serial.println('a');

Serial.print(AcY); Serial.println('b');

sudut = (AcX + 15013)/163.6;

lcd.setCursor(0,2);

lcd.print("Sudut : ");

lcd.print(sudut);

lcd.print(" ");

nilai = analogRead(analogInPin);

out = map(nilai,0,1024,0,100);

lcd.setCursor(0,0);

lcd.print("slider : ");

lcd.print(out);

lcd.print(" ");

bacaSensor = digitalRead(miring);// read TILT sensor

if(bacaSensor == 1){

lcd.setCursor(0,1);

lcd.print("Tilt: ");

lcd.print(bacaSensor);

lcd.print(" Miring ");

digitalWrite(buzzer, HIGH);

}

if(bacaSensor == 0){

lcd.setCursor(0,1);

lcd.print("Tilt: ");

lcd.print(bacaSensor);

lcd.print(" Normal ");

digitalWrite(buzzer, LOW);

}

Blynk.run();

timer.run();

delay(100);

}

f. VIDEO HASILNYA

.

HOME

Translate

Monitor Water Flow dan Pressure

Monitor Bpm dan SPO2 ONLINE Server Thingspeak

Alat Monitor Arus dan Pembatas Arus Berlebih / Maksimal

Automatic Pet Feeder dengan Input Waktu via Handphone

AUDIOMETRI (Alat Test / Cek Pendengaran) ARDUINO

Monitor Jarak Secara ONLINE Thingspeak

Alat Monitoring Sudut Kemiringan Dataran (Tilt Level) ONLINE BLYNK