It features low cost, low power consumption, small form factor and easy to use. The tags can be actively powered from a power source or can be passively powered form the incoming electromagnetic fields.ĮM-18 RFID reader module is one of the commonly used reader and can read any 125KHz tags. It is not necessary that the cards are to be in visibility of the reader, it can be embedded in the tracked object. RFID (Radio Frequency Identification) uses electromagnetic fields to read, monitor and transfer data from tags attached to different objects. The EM18 RFID Receiver for Raspberry Pi uses the UART interface for communication. One item they have is the EM18 RFID reader module. They offer a range of sensors and modules that use the I2C interface or UART interfaces on the Raspi. Kind of a mix between an ESP8266 and a Raspberry Zero!). Using a Raspberry Pi (even a Zero!) and an RFID Card reader, along with relay, LED, buzzer and some python code gives you the ability to install electronic locks in your house or office.Ī company called ControlEverything offers a number of interesting products for Arduino, Particle, Raspberry and their own $5 Onion Omega 2 (a Linux computer with WiFi built-in.
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