pic source code for controlling an Siemens GSM modem in PPP mode, reading an RFID with 125Khz

The attendance system is basically an embedded one.The microcontroller plays an important role in the system. The main objective of the system is to uniquely identify and to make attendance for a person. This requires a unique product, which has th

This project aimed to develop a wireless system to detect and allow only the authorized persons. The system was based on Radio Frequency Identification (RFID) technology and consists of a passive RFID tag. The passive micro transponder tag collects p

基于STM8L001J3 的125KHZ RFID 源码程序，运用基本定时器来读取脉宽的值