From 1b9da2fe8bd20fe321f86daa394391e9e40f24d5 Mon Sep 17 00:00:00 2001
From: Aaron Lee <longyklee@gmail.com>
Date: Mon, 1 Jan 2024 00:34:45 +0800
Subject: [PATCH] add arduino

---
 arduino/SavageTracker/SavageTracker.ino | 172 ++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 arduino/SavageTracker/SavageTracker.ino

diff --git a/arduino/SavageTracker/SavageTracker.ino b/arduino/SavageTracker/SavageTracker.ino
new file mode 100644
index 0000000..4310f0f
--- /dev/null
+++ b/arduino/SavageTracker/SavageTracker.ino
@@ -0,0 +1,172 @@
+#include <SPI.h>
+#include <MFRC522.h>
+#include <LiquidCrystal_I2C.h>
+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <WiFiClient.h>
+#include <ESP8266HTTPClient.h>
+#include <ArduinoJson.h>
+
+LiquidCrystal_I2C lcd(0x27, 16, 2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
+
+#define SS_PIN D8
+#define RST_PIN D3
+#define BEEPER_PIN D0
+
+#define WIFI_SSID "SEA"
+#define WIFI_PASS "sara9914"
+#define RECURL "http://192.168.0.11:5000/api/rfid"
+#define KEY "secret"
+
+MFRC522 rfid(SS_PIN, RST_PIN);  // Instance of the class
+
+bool processingReq = false;
+WiFiClient wifiClient;
+
+int cursorPos = 0;
+
+void setup() {
+  Serial.begin(9600);
+
+  lcd.init();
+  lcd.backlight();
+  lcdOut(0, "Savage Tumaz");
+
+  lcdOut("init SPI...");
+  SPI.begin();  // Init SPI bus
+
+  lcdOut("init MFRC522...");
+  rfid.PCD_SetAntennaGain(255);
+  rfid.PCD_Init();  // Init MFRC522
+  lcd.setCursor(14, 1);
+  lcd.print("ok");
+
+  pinMode(BEEPER_PIN, OUTPUT);
+
+  connectWifi();
+
+  delay(1500);
+
+  lcdOut("Please Scan");
+}
+
+void loop() {
+  if (processingReq || !rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial()) {
+    return;
+  }
+
+  char uid[8];
+  sprintf(uid, "%02X%02X%02X%02X", rfid.uid.uidByte[0], rfid.uid.uidByte[1], rfid.uid.uidByte[2], rfid.uid.uidByte[3]);
+  Serial.println(uid);
+
+  rfid.PICC_HaltA();
+  rfid.PCD_StopCrypto1();
+
+  digitalWrite(BEEPER_PIN, HIGH);
+  delay(50);
+  digitalWrite(BEEPER_PIN, LOW);
+
+  lcdOut(0, uid);
+  lcdOut("Loading...");
+
+  DynamicJsonDocument body(200);
+  body["uid"] = uid;
+  body["key"] = KEY;
+  char bodych[1024];
+  serializeJson(body, bodych);
+  Serial.println(bodych);
+
+  HTTPClient httpClient;
+  httpClient.useHTTP10(true);
+  httpClient.begin(wifiClient, RECURL);
+  httpClient.addHeader("Content-Type", "application/json");
+  Serial.print("RECURL: ");
+  Serial.println(RECURL);
+ 
+  int httpCode = httpClient.POST(bodych);
+  Serial.print("Send POST request to RECURL: ");
+  Serial.println(RECURL);
+  
+  if (httpCode == HTTP_CODE_OK) {
+    DynamicJsonDocument doc(500);
+    deserializeJson(doc, httpClient.getStream());
+    httpClient.end();
+
+    String tmpstr;
+    serializeJson(doc, tmpstr);
+    Serial.println(tmpstr);
+
+    lcdOut(0, strdup(doc["status"]));
+    lcd.print(":");
+    lcd.print(strdup(doc["name"]));
+    successTone();
+  
+    lcdOut("Please Scan");
+  } else {
+    Serial.println("Server Respose Code:");
+    Serial.println(httpCode);
+    lcdOut(0, "ERROR ");
+    lcd.print(httpCode);
+    if (httpCode > 0) {
+      DynamicJsonDocument doc(500);
+      deserializeJson(doc, httpClient.getStream());
+      lcdOut(strdup(doc["status"]));
+    } else lcdOut(httpClient.errorToString(httpCode).c_str());
+    errTone();
+    delay(2000);
+    lcdOut("Please Scan");
+  }
+}
+
+void lcdOut(const char* s) {
+  lcdOut(strdup(s));
+}
+
+void lcdOut(char* s) {
+  lcdOut(1, s);
+}
+
+void lcdOut(int line, char* s) {
+  lcd.setCursor(0, line);
+  lcd.print("                ");
+  lcd.setCursor(0, line);
+  lcd.print(s);
+}
+
+void errTone() {
+  twoTone(300);
+}
+
+void successTone() {
+  twoTone(50);
+}
+
+void twoTone(int duration) {
+  digitalWrite(BEEPER_PIN, HIGH);
+  delay(duration);
+  digitalWrite(BEEPER_PIN, LOW);
+  delay(duration);
+  digitalWrite(BEEPER_PIN, HIGH);
+  delay(duration);
+  digitalWrite(BEEPER_PIN, LOW);
+}
+
+void connectWifi() {
+  WiFi.disconnect();
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+  Serial.printf("\nDevice is connecting to WiFi using SSID %s and Passphrase %s.\n", WIFI_SSID, WIFI_PASS);
+  lcdOut("WiFi Setup");
+  int cnt = 0;
+  // Keep looping until the WiFi is not connected.
+  while (WiFi.status() != WL_CONNECTED) {
+    if (cnt++ % 5 == 0) {
+      lcd.setCursor(10, 1);
+      lcd.print("      ");
+      lcd.setCursor(10, 1);
+    }
+    lcd.print(".");
+    delay(500);
+  }
+  lcdOut("WiFi OK!");
+}
\ No newline at end of file