Unveiling the Art of Crafting Common Security Systems---Raspberry Pi Pico

In the realm of security systems, RFID readers stand as a popular and integral component. They possess the ability to read RFID card IDs and transmit this data to a computer system. In this instructional guide, we embark on an exploration of the OSOYOO RFID reader, harnessing it to construct a straightforward security verification system. This RFID reader employs a novel communication protocol known as SPI (Serial Peripheral Interface) to relay data to the Raspberry Pi Pico. By the end of this tutorial, you will have gained insights into three distinct communication protocols: SPI, I2C, and Serial (RS232). It's important to note that these communication methods exhibit varying speeds, with SPI being the fastest, followed by I2C, and Serial trailing behind.