2019-12
RFID第二次作業Arduino程式
*/
/*
Many thanks to nikxha from the ESP8266 or
WEMOSD1 forum
*/
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <SPI.h>
#include "MFRC522.h"
/* Wiring RFID RC522 module
=============================================================================
GND
= GND 3.3V = 3.3V
The following table shows the typical pin
layout used:
Signal MFRC522 WeMos D1 mini NodeMcu Generic
RST/Reset RST
D3 [1] D3 [1] GPIO-0 [1]
SPI SS SDA [3] D8 [2] D8 [2] GPIO-15 [2]
SPI MOSI MOSI D7 D7 GPIO-13
SPI MISO MISO D6 D6 GPIO-12
SPI SCK SCK D5 D5 GPIO-14
[1] (1, 2) Configurable, typically defined
as RST_PIN in sketch/program.
[2] (1, 2) Configurable, typically defined
as SS_PIN in sketch/program.
[3] The SDA pin might be labeled SS on
some/older MFRC522 boards
=============================================================================
*/
#define RST_PIN D3
// RST-PIN für RC522 - RFID - SPI - D3
#define SS_PIN D8
// SDA-PIN für RC522 - RFID - SPI - D8
// Update these with values suitable for
your network.
const
char *ssid = "PTS-2F";
const
char *pass = "PTS6662594";
//const
char *ssid = "74170287";
//const
char *pass = "24063173";
//const
char *ssid = "yourSSID"; // change according to your Network -
cannot be longer than 32
characters!
//const
char *pass = "yourPASSWORD";
// change according to your Network
//修改成自己的SSID Password
#define MQTTid "" //id of this mqtt client
#define MQTTip "broker.mqtt-dashboard.com" //ip address or hostname of the mqtt broker
#define MQTTport 1883 //port of the mqtt
broker
#define
MQTTuser "alex9ufo" //username of this mqtt
client
#define
MQTTpsw
"alex9981"
//password of this mqtt client
//修改成自己的 username password
//#define MQTTuser "your_username" //username of this mqtt client
//#define MQTTpsw "your_password" //password of this mqtt client
#define MQTTpubQos 2 //qos of publish
(see README)
#define MQTTsubQos 1 //qos of subscribe
#define BUILTIN_LED 2 // Arduino
standard is GPIO13 but lolin nodeMCU is 2
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create
MFRC522 instance
struct RFIDTag { // 定義結構
byte uid[4];
char *name;
};
//==================================
//先執行RFID_2程式確認卡號再來設定
// 初始化結構資料
// 將卡號變成代號Arduino....Raspberry
Pi.....Espruino
//==================================
struct RFIDTag tags[] = { // 初始化結構資料
{{0x70,0x21,0xED,0x10},
"Alex9ufo"},
{{0x44,0x51,0xBB,0x96},
"RaspberryPi"},
{{0x15,0x8,0xA,0x53}, "Espruino"}
//自己的卡片 號碼 自己的命名Alex9ufo RaspberryPi Espruino
};
byte totalTags = sizeof(tags) /
sizeof(RFIDTag);
//Variables
long lastMsg = 0;
char jsonChar[100];
String IDNo_buf="";
bool Flash = false; //true
//=============================================================================
boolean pendingDisconnect = false;
void mqttConnectedCb(); // on connect
callback
void mqttDisconnectedCb(); // on disconnect
callback
void mqttDataCb(char* topic, byte* payload,
unsigned int length); // on new message callback
WiFiClient wclient;
PubSubClient client(MQTTip, MQTTport,
mqttDataCb, wclient);
//=============================================================================
String
printHex(byte *buffer, byte bufferSize) {
String id = "";
for (byte i = 0; i < bufferSize; i++) {
id += buffer[i] < 0x10 ? "0" : "";
id += String(buffer[i], HEX);
}
return id;
}
//=============================================================================
void
mqttConnectedCb() {
Serial.println("connected");
//
Once connected, publish an announcement...
client.publish("alex9ufo/outTopic/RFID/json",
jsonChar, MQTTpubQos, true); // true means retain
//
... and resubscribe
client.subscribe("alex9ufo/inTopic",
MQTTsubQos);
//修改成自己的MQTT 命名
}
//=============================================================================
void
mqttDisconnectedCb() {
Serial.println("disconnected");
}
//=============================================================================
void
mqttDataCb(char* topic, byte* payload, unsigned int length) {
/*
you
can convert payload to a C string appending a null terminator to it;
this is possible when the message (including protocol overhead) doesn't
exceeds the MQTT_MAX_PACKET_SIZE defined in the library header.
you
can consider safe to do so when the length of topic plus the length of
message doesn't exceeds 115 characters
*/
char* message = (char *) payload;
message[length] = 0;
//String message;
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
Serial.println(message);
String message1;
for
(int i = 0; i < length; i++) {
message1 = message1 + (char)payload[i];
//Conver *byte to String
}
//Serial.print(message);
if(message1 == "#on")
{
digitalWrite(BUILTIN_LED,LOW);
Flash = false;
} //LED on
if(message1 == "#off")
{
digitalWrite(BUILTIN_LED,HIGH);
Flash = false;
}
//LED off
if(message1== "#flash")
{
Flash = true;
digitalWrite(BUILTIN_LED, HIGH);
}
// if(message== "#flashLED")
}
//======================================================
void
setup_wifi() {
delay(10);
//
We start by connecting to a WiFi network
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");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
//======================================================
void
setup() {
Serial.begin(115200);
setup_wifi();
pinMode(BUILTIN_LED, OUTPUT);
Serial.println(F("Booting...."));
SPI.begin(); // Init SPI
bus
mfrc522.PCD_Init(); // Init
MFRC522
Serial.println(F("Ready!"));
Serial.println(F("======================================================"));
Serial.println(F("Scan for Card
and print UID:"));
}
//======================================================
void
process_mqtt() {
if
(WiFi.status() == WL_CONNECTED) {
if (client.connected()) {
client.loop();
}
else {
// client id, client username, client password, last will topic, last
will qos, last will retain, last will message
if (client.connect(MQTTid, MQTTuser, MQTTpsw, MQTTid
"/status", 2, true, "0")) {
pendingDisconnect = false;
mqttConnectedCb();
}
}
}
else {
if (client.connected())
client.disconnect();
}
if
(!client.connected() && !pendingDisconnect) {
pendingDisconnect = true;
mqttDisconnectedCb();
}
}
//======================================================
void
loop() {
process_mqtt();
long now = millis();
if
(Flash)
{
digitalWrite(BUILTIN_LED, !digitalRead(BUILTIN_LED));
delay(500);
}
if
(mfrc522.PICC_IsNewCardPresent() && mfrc522.PICC_ReadCardSerial())
{
// 如果出現新卡片就讀取卡片資料
byte *id = mfrc522.uid.uidByte;
// 取得卡片的UID
byte idSize = mfrc522.uid.size;
// 取得UID的長度
bool foundTag = false;
// 是否找到紀錄中的標籤，預設為「否」。
byte i=0;
for (i=0; i<totalTags; i++) {
if (memcmp(tags[i].uid, id, idSize) == 0) {
Serial.print(F("Card UID:"));
Serial.println(tags[i].name); // 顯示標籤的名稱
foundTag = true; // 設定成「找到標籤了！」
break; // 退出for迴圈
}
}
if (!foundTag) { // 若掃描到紀錄之外的標籤，則顯示"Wrong card!"。
Serial.println("Wrong card!");
}
mfrc522.PICC_HaltA(); // 讓卡片進入停止模式
//Serial.println(tags[i].name);
IDNo_buf="";
IDNo_buf=tags[i].name;
/* char json[] =
//
"{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";
// char JSONMessage[] = "
{\"SensorType\": \"Temperature\", \"Value\":
10}"; //Original message
// Convert data to JSON string
String json =
"{\"data\":{"
"\"RFID_No\": \"" + IDNo_buf +
"\"}"
"}";
*/
// Convert data to JSON string
String json =
"{\"RFIDNo\": \"" + IDNo_buf +
"\"}";
// Convert JSON string to character array
json.toCharArray(jsonChar, json.length()+1);
if (client.connected()) {
Serial.print("Publish message: ");
Serial.println(json);
// Publish JSON character array to MQTT topic
client.publish("alex9ufo/outTopic/RFID/json",jsonChar);
//修改成自己的MQTT 命名
}
} // if
(mfrc522.PICC_IsNewCardPresent()
}
//Loop
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