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--- pm:prj2021:agrigore:accesscontrol [2021/05/31 01:33]
alexandru.dragus [Software Design]
+++ pm:prj2021:agrigore:accesscontrol [2021/05/31 10:51] (current)
alexandru.dragus [Download]
@@ Line 1: / Line 1: @@
 ====== Access control system ======
-** Demo:   [[https://youtu.be/iJzq9vdDJWI|Control gate and door with ESP8266 via web interface | PM2021 @ ACS, UPB ]] **
+** Demo:   [[https://youtu.be/iJzq9vdDJWI|Control gate and door with ESP8266 via web interface | PM2021 @ ACS, UPB ]] **\\
+** Wiki: {{:pm:prj2021:agrigore:access_control_system_pdf_wiki_final.pdf|Access Control System Tutorial}} **
 ===== Autor =====
 **[[alexandru.dragus@stud.acs.upb.ro|Dragus Alexandru]]**\\
@@ Line 17: / Line 18: @@
 ==== Schema bloc ====
-{{:pm:prj2021:agrigore:sch_bloc_access_control_system.png?700|}}
+{{:pm:prj2021:agrigore:sch_bloc_access_control_system-011.jpg?700|}}
 Device-ul din partea de sus, conectat la interfon, va fi referit in continuare prin **''Device interfon''**, si reprezinta un server care asculta pe /door si activeaza un releu.
@@ Line 62: / Line 64: @@
 === Device interfon ===
 Device-ul interfon se poate alimenta direct la 3.3V sau la o tensiune intre 7 si 24V. Acesta are atasat un modul de relee prin care poate controla dispozitive cu tensiuni mari. In cazul de fata, releul face contactul la butonul pentru deschiderea portii, semnalul venind printr-un tranzistor, pentru a putea transmite 5V.
-{{ :pm:prj2021:agrigore:access_control_system_colaj-2-interfon.png?700 |}}
+{{ :pm:prj2021:agrigore:access_control_system_colaj-2-interfon-01.jpg?700 |}}
 Device-urile se pot produce si pe placi PCB proiectate in software, dupa cum se vede in exemplul de mai jos, realizat in Eagle. Totodata, Eagle ofera suport pentru proiectarea 3D a placutei, cu ajutorul Fusion360.
-{{ :pm:prj2021:agrigore:access_control_system_colaj-1-interfon.png?600 |}}
+{{ :pm:prj2021:agrigore:access_control_system_colaj-1-interfon-01.jpg?600 |}}
 Imaginile de proiectare PCB/ 3D sunt exemplificative, placa finala avand atasate modulele de releu si regulator 5V in plus.
@@ Line 80: / Line 83: @@
 Imagini din timpul procesului de lipire:
-{{ :pm:prj2021:agrigore:access_control_system_colaj-hub.png?700 |}}
+{{ :pm:prj2021:agrigore:access_control_system_colaj-hub-01.jpg?700 |}}
 ===== Software Design =====
- * Mediu de dezvoltare: **Arduino IDE**
+  * Mediu de dezvoltare: **Arduino IDE**
- * Placute de dezvoltare: **NodeMCU ESP8266**
+  * Placute de dezvoltare: **NodeMCU ESP8266**
- * Biblioteci folosite: **ESP8266WiFi, ESPAsyncWebServer, ESP8266HTTPClient**
+  * Biblioteci folosite: **ESP8266WiFi, ESPAsyncWebServer, ESP8266HTTPClient** (link la resurse)
 Aplicatia trebuie sa fie cat mai usor de folosit de catre un utilizator obisnuit, astfel ca am ales o interfata web simpla, cu 3 butoane, cate unul pentru fiecare 'usa' de deschis. Programarea se realizeaza Arduino-like pe placutele NodeMCU ESP8266.
+==== Device interfon ====
+Codul are urmatoarea logica:
+  - Se conecteaza dispozitivul la reteaua de wifi setata
+  - Se initializeaza un server HTTP, pe portul 80
+  - Se asteapta un request ''GET /door''
+  - La request, se transmite un semnal HIGH pe pinul D2, care va activa tranzistorul si, in consecinta, releul. Astfel, butonul interfonului va face contact si se va deschide poarta.
+  - Se returneaza o pagina HTML care redirecteaza utilizatorul la adresa IP statica a ''Device Hub''
+GET /door handler:
+<code>
+server.on("/door", HTTP_GET, [](AsyncWebServerRequest *request) {
+    // Send webpage
+    request->send(200, "text/html", doorWebpage());
+    Serial.println("Door pressed");
+    timePressDoor = millis();
+    doorState = "on";
+    // Send signal for door (relay)
+    digitalWrite(doorPin, HIGH);
+});
+</code>
+==== Device hub ====
+Codul are urmatoarea logica:
+  - Se conecteaza dispozitivul la reteaua de wifi setata
+  - Se initializeaza un server HTTP, pe portul 80
+  - Se asteapta request-uri: ''GET /garage'', ''GET /carGate'', ''GET /door''
+  - Pentru fiecare request, exista un handler care se apeleaza
+  - Pentru request-urile garage si carGate, se returneaza o pagina care confirma actiunea, redirecteaza utilizatorul la home si seteaza pin-ul corespunzator pe HIGH
+  - Pentru request-ul ''GET /door'', se redirecteaza utilizatorul spre adresa ''Device interfon'' pentru a face GET acolo
+  - Dupa un delay prestabilit, se reseteaza pe LOW toti pinii, dupa ce a fost apasat un buton
+Exemplu handler GET request:
+<code>
+server.on("/cargate", HTTP_GET, [](AsyncWebServerRequest *request) {
+    // Send webpage
+    request->send(200, "text/html", buttonWebpage("cargate"));
+    Serial.println("Car gate pressed");
+    timePressCarGate = millis();
+    carGateState = "on";
+    // Send signal for Car gate
+    digitalWrite(carGatePin, HIGH);
+});
+</code>\\
+Functie care returneaza o pagina web simpla:
+<code>
+String buttonWebpage(String which) {
+  String webpage = "";
+  webpage = webpage + ("<!DOCTYPE html><html>");
+  webpage = webpage + ("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
+  webpage = webpage + ("");
+  webpage = webpage + ("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
+  webpage = webpage + ("</style>");
+  webpage = webpage + ("<meta http-equiv=\"refresh\" content=\"1;url=http://192.168.0.103\" />");
+  webpage = webpage + ("</head>");
+  webpage = webpage + ("<body><h1>Access system</h1>");
+  webpage = webpage + ("<h2>Se deschide ");
+  if (which == "garage")
+    webpage = webpage + "garajul";
+  else if (which == "cargate")
+    webpage = webpage + "poarta auto";
+  else
+    webpage = webpage + "poarta mica";
+  webpage = webpage + ("</h2>");
+  webpage = webpage + ("<br></br><br></br><br></br>");
+  webpage = webpage + ("<h3>Proiect realizat in cadrul materiei<br></br>");
+  webpage = webpage + ("Proiectarea pe Microprocesoare<br></br>");
+  webpage = webpage + ("</body></html>");
+  return webpage;
+}
+</code>\\
+Snippet cod care reseteaza butonul la starea 'neapasat':
+<code>
+  currentTime = millis();
+  // Release button if delay time passed
+  if (garageState == "on" && currentTime - timePressGarage > timeoutButtons) {
+    garageState = "off";
+    digitalWrite(garagePin, LOW);
+    Serial.println("Garage unpressed");
+  }
+</code>\\
+== Interfata web minimalista ==
+{{ :pm:prj2021:agrigore:access_control_system_interfata-01.jpg?300 |}}
 ===== Rezultate Obtinute =====
 ** Demo:   [[https://youtu.be/iJzq9vdDJWI|Control gate and door with ESP8266 via web interface | PM2021 @ ACS, UPB ]] **
@@ Line 96: / Line 191: @@
 Consider ca proiectul la PM a fost o activitate placuta, care mi-a adus mai multa experienta hands-on in domeniul embedded.
 ===== Download =====
-** [[https://github.com/AlexDragus/access-control|Code and schematics (GitHub)]] **
+** [[https://github.com/AlexDragus/access-control|Code and schematics (GitHub)]] **\\
+** {{:pm:prj2021:agrigore:access_control_system_pdf_wiki_final.pdf|Pagina wiki PDF}} **\\
+** {{:pm:prj2021:agrigore:proiect_pm_access_control_system.zip|Arhiva cod si scheme}} **
 ===== Jurnal =====
@@ Line 116: / Line 213: @@
   * **20 aprilie**: Alegere tema proiect
 ===== Bibliografie/ Resurse =====
-**Demo**: [[https://youtu.be/iJzq9vdDJWI|Control gate and door with ESP8266 via web interface | PM2021 @ ACS, UPB ]]
-[[https://ocw.cs.pub.ro/courses/pm/prj2021/agrigore/accesscontrol|Access control system]]
-[[https://github.com/AlexDragus/access-control|Code and schematics (GitHub)]]
+  * **Demo**: [[https://youtu.be/iJzq9vdDJWI|Control gate and door with ESP8266 via web interface | PM2021 @ ACS, UPB ]]
+  * {{:pm:prj2021:agrigore:access_control_system_pdf_wiki_final.pdf|Pagina wiki Final}}
+  * {{:pm:prj2021:agrigore:access_control_systempdf.pdf|Pagina wiki Etapa 1}}
+  * [[https://ocw.cs.pub.ro/courses/pm/prj2021/agrigore/accesscontrol|Access control system]]
+  * [[https://github.com/AlexDragus/access-control|Code and schematics (GitHub)]]
+  * [[https://randomnerdtutorials.com/esp8266-nodemcu-client-server-wi-fi/|NodeMCU ESP8266 Client and Server tutorial]]
+  * [[https://github.com/me-no-dev/ESPAsyncWebServer|Biblioteca ESPAsyncWebServer]]
+  * [[https://github.com/me-no-dev/ESPAsyncTCP|Biblioteca ESPAsyncTCP]]
+  * [[https://www.componentsinfo.com/wp-content/uploads/2018/11/2n3904-transistor-pinout-equivalent.gif|Schema conectare tranzistor]]
+  * [[https://components101.com/asset/sites/default/files/component_pin/NodeMCU-ESP8266-Pinout.jpg|Pinout NodeMCU ESP8266]]
-{{:pm:prj2021:agrigore:access_control_systempdf.pdf|}}
+<html><a class="media mediafile mf_pdf" href="?do=export_pdf">Export to PDF</a></html>