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Mufidah 2024-07-22 08:29:59 +07:00
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#include <Wire.h>
#include <SoftwareSerial.h>
#include "MAX30100_PulseOximeter.h"
#define REPORTING_PERIOD_MS 1000
SoftwareSerial mySerial(2, 0); // D3 -> TX, D4 -> RX
PulseOximeter pox;
uint32_t tsLastReport = 0;
void onBeatDetected() {
Serial.println("Beat!");
}
void setup() {
Serial.begin(115200);
mySerial.begin(9600);
if (!pox.begin()) {
Serial.println("FAILED");
for(;;);
} else {
Serial.println("SUCCESS");
}
pox.setOnBeatDetectedCallback(onBeatDetected);
}
void loop() {
pox.update();
if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
float heartRate = pox.getHeartRate();
float spO2 = pox.getSpO2();
Serial.print("Heart rate:");
Serial.print(heartRate);
Serial.print(" bpm / SpO2:");
Serial.print(spO2);
Serial.println(" %");
String dataToSend = String(heartRate) + "," + String(spO2);
mySerial.println(dataToSend);
tsLastReport = millis();
}
}

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#include <Wire.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ESP8266WebServer.h>
#include <WiFiClient.h>
#include <SPI.h>
#include <MFRC522.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal_I2C.h>
#define SS_PIN 2 //--> SDA / SS terhubung ke pin D4
#define RST_PIN 0 //--> RST terhubung ke pin D1
#define BUZZER_PIN 15 // Pin untuk buzzer
#define LM35_PIN A0 // Pin analog untuk sensor LM35
#define SDA_PIN 3 // RX untuk SDA
#define SCL_PIN 1 // TX untuk SCL
MFRC522 mfrc522(SS_PIN, RST_PIN);
const char* ssid = "Nanad"; // Nama SSID WiFi
const char* password = "12345678"; // Password WiFi
const char* host = "172.20.10.4"; // Alamat IP server lokal
WiFiClient client;
ESP8266WebServer server(80);
#define REPORTING_PERIOD_MS 500
uint32_t tsLastReport = 0; // Untuk mengembalikan ke 0
int readsuccess;
byte readcard[4];
char str[32] = "";
String StrUID;
float suhu = 0; // Variabel untuk menyimpan suhu
float heartRate = 0; // Variabel untuk menyimpan detak jantung
float spO2 = 0; // Variabel untuk menyimpan SpO2
String status; // Variabel untuk menyimpan status
SoftwareSerial espSerial(5, 4); // Gunakan D1 -> RX, D2 -> TX untuk komunikasi dengan ESP8266 pertama
LiquidCrystal_I2C lcd(0x27, 16, 2); // Inisialisasi LCD dengan alamat I2C 0x27
void setup() {
Serial.begin(115200);
espSerial.begin(9600); // Gunakan SoftwareSerial untuk berkomunikasi dengan ESP8266 pertama
pinMode(BUZZER_PIN, OUTPUT); // Atur pin BUZZER_PIN sebagai output
digitalWrite(BUZZER_PIN, LOW); // Pastikan buzzer mati pada awalnya
SPI.begin();
mfrc522.PCD_Init();
Serial.println("Menginisialisasi...");
// Inisialisasi Wire dengan pin custom untuk SDA dan SCL
Wire.begin(SDA_PIN, SCL_PIN);
// Inisialisasi LCD
lcd.begin(16, 2);
lcd.backlight();
lcd.print("Inisialisasi...");
connectToWifi();
lcd.clear();
lcd.print("WiFi Terhubung");
delay(2000);
}
void loop() {
readsuccess = getid();
if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
float voltage = analogRead(LM35_PIN) * (3.3 / 1023.0);
suhu = voltage * 100.0;
lcd.clear();
lcd.setCursor(0, 0);
// Cek apakah data detak jantung dari ESP8266 pertama tersedia
if (espSerial.available()) {
String data = espSerial.readStringUntil('\n');
Serial.print("Data diterima: ");
Serial.println(data);
// Pisahkan data detak jantung dan SpO2
int commaIndex = data.indexOf(',');
if (commaIndex != -1) {
String heartRateStr = data.substring(0, commaIndex);
String spO2Str = data.substring(commaIndex + 1);
heartRate = heartRateStr.toFloat();
spO2 = spO2Str.toFloat();
// Tentukan status berdasarkan detak jantung
if (heartRate == 0) {
status = "Sensor belum membaca";
} else if (heartRate < 130) {
status = "Normal";
} else if (heartRate >= 130 && heartRate < 140) {
status = "Elevasi (Pra-hipertensi)";
} else if (heartRate >= 140 && heartRate < 160) {
status = "Stadium 1 (Hipertensi Ringan)";
} else if (heartRate >= 160 && heartRate < 180) {
status = "Stadium 2 (Hipertensi Sedang)";
} else if (heartRate >= 180 && heartRate < 210) {
status = "Stadium 3 (Hipertensi Berat)";
} else if (heartRate >= 210) {
status = "Stadium 4 (Hipertensi Maligna)";
} else {
status = "Tidak Normal";
}
Serial.print("Detak jantung: ");
Serial.println(heartRate);
Serial.print(" bpm / SpO2: ");
Serial.print(spO2);
Serial.println(" %");
Serial.print("Status: ");
Serial.println(status);
lcd.setCursor(0, 0);
lcd.print("HR: ");
lcd.print(heartRate);
lcd.print(" bpm");
lcd.setCursor(0, 1);
lcd.print("SpO2: ");
lcd.print(spO2);
lcd.print(" %");
}
}
kirimDataKeServer(suhu, heartRate, spO2, status);
tsLastReport = millis();
}
if (readsuccess) {
digitalWrite(BUZZER_PIN, HIGH); // Nyalakan buzzer
delay(500); // Buzzer menyala selama 500 ms
digitalWrite(BUZZER_PIN, LOW); // Matikan buzzer
HTTPClient http; // Buat objek dari kelas HTTPClient
String UIDresultSend, postData;
UIDresultSend = StrUID;
// Data yang akan dipost
postData = "UIDresult=" + UIDresultSend;
// Tentukan tujuan permintaan HTTP
http.begin(client, "http://" + String(host) + "/folder_nodemcu2/getUID.php");
// Tambahkan header content-type
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
// Kirim permintaan
int httpCode = http.POST(postData);
String payload = http.getString();
// Tampilkan hasil di monitor serial
Serial.println(UIDresultSend);
Serial.println(httpCode);
Serial.println(payload);
http.end(); // Tutup koneksi
delay(1000);
}
}
void kirimDataKeServer(float suhu, float detakjantung, float oksigen, String status) {
if (WiFi.status() != WL_CONNECTED) {
Serial.println("WiFi tidak terhubung");
return;
}
HTTPClient http;
String url = "http://" + String(host) + "/folder_nodemcu2/kirimdata.php?&detakjantung=" + String(detakjantung) + "&oksigen=" + String(oksigen) + "&status=" + status;
http.begin(client, url);
int httpResponseCode = http.GET();
if (httpResponseCode > 0) {
String respon = http.getString();
Serial.println("Respon dari server: " + respon);
} else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
http.end();
delay(1000);
}
int getid() {
if (!mfrc522.PICC_IsNewCardPresent()) {
return 0;
}
if (!mfrc522.PICC_ReadCardSerial()) {
return 0;
}
Serial.print("UID KARTU YANG DIPINDAI : ");
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("UID: ");
lcd.print(StrUID);
for (int i = 0; i < 4; i++) {
readcard[i] = mfrc522.uid.uidByte[i]; // Menyimpan UID tag dalam readcard
array_to_string(readcard, 4, str);
StrUID = str;
}
mfrc522.PICC_HaltA();
return 1;
}
// Fungsi untuk mengubah hasil pembacaan UID dalam bentuk array menjadi string
void array_to_string(byte array[], unsigned int len, char buffer[]) {
for (unsigned int i = 0; i < len; i++) {
byte nib1 = (array[i] >> 4) & 0x0F;
byte nib2 = (array[i] >> 0) & 0x0F;
buffer[i * 2 + 0] = nib1 < 0xA ? '0' + nib1 : 'A' + nib1 - 0xA;
buffer[i * 2 + 1] = nib2 < 0xA ? '0' + nib2 : 'A' + nib2 - 0xA;
}
buffer[len * 2] = '\0';
}
void connectToWifi() {
Serial.println();
Serial.println();
Serial.print("Menghubungkan ke ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi terhubung");
Serial.println("Alamat IP: ");
Serial.println(WiFi.localIP());
}