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G2331104119 发表于 2021-8-13 19:54

RFID门禁系统

RFID门禁系统准备材料：一块arduino开发板（uno,nano,mega2560均可），RC522 RFID门禁射频，SG90舵机，oled ssd1306 128x64本篇作者使用的是mega2560 atmega2560首先开始电脑上安装arduino ide菜单栏里打开项目>加载库>管理库里挨个搜索将其下载U8glib,Wire,Servo,SPI,MFRC522,代码如下：/*-------------------------------------------------------*/#include <U8g2lib.h>#include <Wire.h>#include <Servo.h>#include <SPI.h>#include <MFRC522.h>//调用所需库U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);Servo servo_9;MFRC522 rfid(2, 3);//初始化oled，舵机，rc522String MFRC522_ReadCardUID(MFRC522 *_name){String _CardUID = "";for (byte _i = 0; _i < _name->uid.size; _i++){ if(_name->uid.uidByte < 0x10) _CardUID += "0"; _CardUID += String(_name->uid.uidByte, HEX) + String(" ");}return _CardUID;} boolean MFRC522_IsNewCard(MFRC522 *_name){if(!_name->PICC_IsNewCardPresent()) return false;if(!_name->PICC_ReadCardSerial()) return false;return true;} void page2() {u8g2.setFont(u8g2_font_helvR10_tf);//oled设置字体、字号、加粗u8g2.setFontPosTop();u8g2.setCursor(0,17);//设置文字坐标u8g2.print("The RF card ID is:");//oled显示文字”The RF card ID is:”u8g2.setCursor(0,30);u8g2.print(MFRC522_ReadCardUID(&rfid));} void page1() {u8g2.setFont(u8g2_font_helvR10_tf);u8g2.setFontPosTop();u8g2.setCursor(0,17);u8g2.print("Please place the RFID");u8g2.setCursor(0,29);u8g2.print("card near the sensor");} void setup(){u8g2.setI2CAddress(0x3C*2);//设置oled IIC地址u8g2.begin();servo_9.attach(9);//设置舵机针脚Serial.begin(9600);//设置串口波特率为9600SPI.begin();rfid.PCD_Init();u8g2.enableUTF8Print(); } void loop(){servo_9.write(0);delay(0);u8g2.firstPage();do{ page1();}while(u8g2.nextPage());if(MFRC522_IsNewCard(&rfid)){ u8g2.firstPage(); do { page2(); }while(u8g2.nextPage()); Serial.println(MFRC522_ReadCardUID(&rfid)); if (String(MFRC522_ReadCardUID(&rfid)).equals(String("29 5d 8b 47 "))) { //当读取卡号与自己的卡号一致时舵机开 servo_9.write(90); delay(0); } delay(5000); rfid.PICC_HaltA(); rfid.PCD_StopCrypto1();}}效果图如下https://www.arduino.cn/forum.php?mod=image&aid=76828&size=300x300&key=6ae3347bbc9be472&nocache=yes&type=fixnoneps:拍照技术不是很行，请多多谅解:D

G2331104119 发表于 2021-8-13 19:56

源码如下
#include <U8g2lib.h>
#include <Wire.h>
#include <Servo.h>
#include <SPI.h>
#include <MFRC522.h>

U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);
Servo servo_9;
MFRC522 rfid(2, 3);

String MFRC522_ReadCardUID(MFRC522 *_name){
String _CardUID = "";
for (byte _i = 0; _i < _name->uid.size; _i++){
if(_name->uid.uidByte < 0x10)
   _CardUID += "0";
_CardUID += String(_name->uid.uidByte, HEX) + String(" ");
}
return _CardUID;
}

boolean MFRC522_IsNewCard(MFRC522 *_name){
if(!_name->PICC_IsNewCardPresent())
return false;
if(!_name->PICC_ReadCardSerial())
return false;
return true;
}

void page2() {
u8g2.setFont(u8g2_font_helvR10_tf);
u8g2.setFontPosTop();
u8g2.setCursor(0,17);
u8g2.print("The RF card ID is:");
u8g2.setCursor(0,30);
u8g2.print(MFRC522_ReadCardUID(&rfid));
}

void page1() {
u8g2.setFont(u8g2_font_helvR10_tf);
u8g2.setFontPosTop();
u8g2.setCursor(0,17);
u8g2.print("Please place the RFID");
u8g2.setCursor(0,29);
u8g2.print("card near the sensor");
}

void setup(){
u8g2.setI2CAddress(0x3C*2);
u8g2.begin();
servo_9.attach(9);
Serial.begin(9600);
SPI.begin();
rfid.PCD_Init();
u8g2.enableUTF8Print();

}

void loop(){
servo_9.write(0);
delay(0);
u8g2.firstPage();
do
{
page1();
}while(u8g2.nextPage());
if(MFRC522_IsNewCard(&rfid)){
u8g2.firstPage();
do
{
   page2();
}while(u8g2.nextPage());
Serial.println(MFRC522_ReadCardUID(&rfid));
if (String(MFRC522_ReadCardUID(&rfid)).equals(String("29 5d 8b 47 "))) {
   servo_9.write(90);
   delay(0);

}
delay(5000);
rfid.PICC_HaltA();
rfid.PCD_StopCrypto1();
}

}

kaifang 发表于 2021-10-3 22:01

:handshake:handshake:handshake

hlm4321 发表于 2021-10-18 20:43

大佬在吗，这是java写的吧，现在遇到点问题不知道能不能请教一下，就是字符串对比那一块，为什么我这里不能呢，现在串口显示读卡的ID但是就是不进if语句进行字符串对比

吼吼吼嘻嘻嘻 发表于 2022-6-24 18:50

能不能弄一个LCD1602的显示屏代码

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RFID门禁系统