[Matt] has mixed up a batch of two RFID reading door lock systems. While the “door lock” part of the setup has yet to come into existence, the “RFID reading” section is up and running. By using the ...

最近想整打卡系統,基本功能如下: 1.分辨卡主身份 2.判斷出入狀態 (類似地鐵閘機,第一次拍卡=入閘,再拍卡=出閘) Serial.print(」 , 「); Serial.print(rfid.serNum[1],BIN); Serial.print(」 , 「); Serial.print(rfid.serNum ...

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

2.判斷出入狀態 (類似地鐵閘機,第一次拍卡=入閘,再拍卡=出閘) 3.紀錄出入時間 我係用RC522 RFID module,我係網上搵到相關資料,程式碼如下 但呢段程式碼只能用作分辨卡主身份,並唔能夠判斷出入狀態:?

An IoT-based automated toll collection system using RFID technology, Arduino Uno, Node.js, MongoDB, and Servo Motor. Designed to reduce traffic congestion and manual errors at toll plazas by enabling ...

Abstract: Among the many potential applications of inexpensive radio frequency identification (RFID) technology are security, tracking assets, people monitoring, supply recognition, and access control ...