project files

Codes and More/Hardware Code /nurse_node/client_side.ino

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+
+void init_server(){
+  String ip_address = WiFi.localIP().toString();
+  String concat_info = "ip=" +ip_address+ "&" +node_id ;
+  char msg[30];
+  concat_info.toCharArray(msg, 30);
+  int statusCode = client.post("/api/init/", msg, &response);
+}
+
+void onpress_side(){
+  Serial.println("Button has been pressed!");
+  print_screen("Updating the server!");
+
+  //NEED TO ADD CALL ID ALONG WITH NURSE ID
+  String str = node_id+"&"+call_id;
+  char msg[30];
+  str.toCharArray(msg, 30);
+  int statusCode = client.post("/api/nurse/", msg, &response);
+  //Serial.println(response);
+
+  buzz();
+  print_screen("Update done!");
+
+
+//  lcd.clear();
+//  lcd_i2c("Received",0,0);
+//  delay(1000);
+//  lcd.clear();
+}

Codes and More/Hardware Code /nurse_node/lcd_part.ino

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+//void lcd_init(){
+//  Wire.begin(LCD_P1,LCD_P2);
+//  lcd.begin();
+//  lcd_print();
+//}
+//
+//void lcd_print(){
+//  lcd_i2c("Hello To",0,0);
+//  lcd_i2c("NCS",0,1);
+//}
+//
+//void lcd_i2c(String msg,int start_pos,int col){
+//  lcd.setCursor(start_pos, col);
+//  lcd.print(msg);
+//}
+//
+//void lcd_buzz(){
+//  
+//  lcd.clear();
+//  
+//  String msg = "Calling";
+//  lcd_i2c(msg,0,0);
+//  
+//}

Codes and More/Hardware Code /nurse_node/nurse_node.ino

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+#include <SPI.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h> //OLED
+
+#include <RestClient.h>
+#include <EasyButton.h>
+#include <ESP8266WebServer.h>
+//#include <LiquidCrystal_I2C.h>
+//#include <Wire.h> 
+
+#define OLED_RESET LED_BUILTIN  //4 SDA > D2 , SCL D1 OLED STUFF
+Adafruit_SSD1306 display(OLED_RESET);
+
+#if (SSD1306_LCDHEIGHT != 64)
+#error("Height incorrect, please fix Adafruit_SSD1306.h!");
+#endif
+
+
+//LiquidCrystal_I2C lcd(0x27, 16, 2);   // Set the LCD address 
+                                      // to 0x27 for a 16 chars 
+                                      // and 2 line display
+
+const int port = 8080;
+const char* host = "192.168.1.177";
+
+const char* ssid = "scarX";
+const char* password = "1234567i";
+
+String node_id = "id=3";
+String response = "";
+String call_id = "";
+bool call_status = false;
+
+RestClient client = RestClient(host,port);
+ESP8266WebServer server(80);
+
+#define BUTTON_PIN D6                   // DD6
+#define BUZZER_PIN D7                  // D7
+//#define LCD_P1     14                  // D5   LCD                 
+//#define LCD_P2     12                  // D6 
+
+EasyButton button(BUTTON_PIN);
+bool toggle = true;
+
+void onPressed() {
+  if(call_status)
+  {
+    onpress_side();
+    call_status = false;
+  }
+  else
+  {
+    clear_screen();
+  }
+
+
+  Serial.println("Button has been pressed!");
+}
+
+
+void setup() {
+  Serial.begin(115200);
+  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
+  button.begin();
+  button.onPressed(onPressed);
+  pinMode(BUZZER_PIN, OUTPUT);
+
+  //lcd_init();
+  connection();
+  route_server();
+}
+
+void loop() {
+  server.handleClient();
+  connection();
+  button.read();
+}

Codes and More/Hardware Code /nurse_node/oled_part.ino

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+void print_screen(String str){
+ display.clearDisplay();
+  display.display();
+
+  display.setTextSize(2);
+  display.setTextColor(WHITE);
+  display.setCursor(0,0);
+  display.println(str);
+  display.display();
+}
+
+void clear_screen(){
+ display.clearDisplay();
+ display.display();
+}

Codes and More/Hardware Code /nurse_node/server_side.ino

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+
+void route_server(){
+    server.on("/",HTTP_POST, incoming);
+    server.on("/alert",HTTP_POST, alert);
+    server.begin();
+}
+
+void incoming() {
+  Serial.println("Got One Incoming");
+
+  String security_code = "123456789";
+  if (security_code == server.arg("sc"))
+  {
+    Serial.println("CALLING...");
+    print_screen("CALLING...");
+    buzz();
+    String bed_id = server.arg("bed_id");
+    call_id =  "call_id=" + server.arg("call_id");
+    Serial.println("Bed: "+bed_id);
+    server.send(200, "text/plain", "success");
+    call_status = true;
+    return;
+  }
+  server.send(200, "text/plain", "404");
+}
+
+
+void alert() {
+  Serial.println("Got One Alert!");
+
+  String security_code = "123456789";
+  if (security_code == server.arg("sc"))
+  {
+    buzz();
+    String msg = server.arg("msg");
+    print_screen(msg);
+    server.send(200, "text/plain", "success");
+    return;
+  }
+  server.send(200, "text/plain", "404");
+}

Codes and More/Hardware Code /nurse_node/utlis.ino

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+
+void connection(){
+  if(WiFi.status() != WL_CONNECTED){
+    print_screen("Connecting...");
+    int a = client.begin(ssid,password);
+
+
+    if(WiFi.status() == WL_CONNECTED){
+      init_server();
+      Serial.println("Initialization Done");
+      print_screen("Initialization Done");
+    }
+  }
+}
+
+void buzz(){
+  digitalWrite(BUZZER_PIN, true);
+  delay(300);
+  digitalWrite(BUZZER_PIN, false);
+}

Codes and More/Hardware Code /rest_post_init_call/rest_post_init_call.ino

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+#include <RestClient.h>
+#include <EasyButton.h>
+#include <SPI.h>
+#include <MFRC522.h>
+
+#define SS_PIN D4
+#define RST_PIN D3
+
+//const char* ssid     = "Research Lab";
+//const char* password = "research12";
+const char* ssid     = "scarX";
+const char* password = "1234567i";
+
+const char* host = "192.168.1.81";
+const int port = 8080;
+
+MFRC522 mfrc522(SS_PIN, RST_PIN); 
+RestClient client = RestClient(host, port);
+EasyButton button(D1);
+String node_id = "id=1";
+
+
+// Callback function to be called when the button is pressed.
+void onPressed() { 
+  patient_call(client,node_id);
+  Serial.println("button pressed");
+}
+
+void setup() {
+
+  Serial.begin(115200);
+  int a = client.begin(ssid, password);
+  init_server(client, node_id);
+
+  button.begin();
+  button.onPressed(onPressed);
+  pinMode(D2, OUTPUT);
+
+  SPI.begin();        // Init SPI bus
+  mfrc522.PCD_Init(); // Init MFRC522
+  Serial.println("RFID reading UID");
+}
+
+void loop() {
+  button.read();
+  read_card(mfrc522);
+}

Codes and More/Hardware Code /rest_post_init_call/rfid.ino

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+
+void read_card(MFRC522 mfrc522){
+
+//  String readID = "";
+
+  if ( mfrc522.PICC_IsNewCardPresent())
+      {
+          if ( mfrc522.PICC_ReadCardSerial())
+          {
+             Serial.print("Tag UID:");
+//             for (byte i = 0; i < mfrc522.uid.size; i++) {
+//                    Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
+//                    Serial.print(mfrc522.uid.uidByte[i], HEX);
+//                    readID += mfrc522.uid.uidByte[i];
+//              }
+              unsigned long UID_unsigned;
+              UID_unsigned = mfrc522.uid.uidByte[0] << 24;
+              UID_unsigned += mfrc522.uid.uidByte[1] << 16;
+              UID_unsigned += mfrc522.uid.uidByte[2] << 8;
+              UID_unsigned += mfrc522.uid.uidByte[3];
+
+              String UID_string = (String)UID_unsigned;
+              Serial.println(UID_string);
+              Serial.println();
+              mfrc522.PICC_HaltA();
+          }
+  }
+
+}

Codes and More/Hardware Code /rest_post_init_call/server_part.ino

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+
+void post_request(RestClient client, String route_p, String concat_msg, int len){
+
+  String response = "";
+  char msg[len];
+  concat_msg.toCharArray(msg, len);
+
+  char route[20];
+  route_p.toCharArray(route,20);
+  int statusCode = client.post(route, msg, &response);
+}
+
+
+
+void init_server(RestClient client, String node_id){
+
+  //Server Initializaion code, it will send 
+  String ip_address = WiFi.localIP().toString();
+  String concat_msg = "ip=" +ip_address+ "&" +node_id ;
+
+  post_request(client, "/api/init/", concat_msg, 30);
+}
+
+
+void patient_call(RestClient client,String node_id){
+    buzzer_sound();
+    post_request(client, "/api/bed/", node_id, 10);
+}

Codes and More/Hardware Code /rest_post_init_call/utils.ino

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+
+//#define BUTTON_PIN 0                        //D3
+//#define PRESS_PIN 4                         //D2
+
+//const char* ssid     = "Research Lab";
+//const char* password = "research12";
+
+void buzzer_sound(){
+
+    bool toggle = true;
+
+    Serial.println(toggle);
+    digitalWrite(D2, toggle);
+    delay(200);
+    toggle=!toggle;
+    digitalWrite(D2, toggle);
+    Serial.println("Button has been pressed!");  
+}