Then this data sent to the microcontroller using UART communication. Upon getting power, the transponder transfers all the information, such as a specific ID, in the form of an RF signal to the RFID Module. The transponder then transforms the radio signal into the usable form of power. The tag draws power from the reader module-generated electromagnet field. When the RFID tag comes in the transmitter signal range, this signal hits the transponder that is inside the card. RS232 and WEIGAND26.ĮM18 RFID Reader features a transceiver that transmits a radio signal.
EM-18 Reader Module can provide output through two communication interfaces i.e. This low-cost RFID Reader module features low power consumption, low form factor, and easy to use. One of the widely used RFID readers for reading 125 kHz tags is the EM-18 RFID Reader.
MLX90614 Contactless Temperature Sensor.It is something like an RFID based attendance system, which also records the body temperature of every person. The thermometer will only measure the temperature when the distance is less than 25 CM.
The ultrasonic sensor is used to calculate the distance between the thermometer and the person. We will be using Arduino Nano, MLX90614, EM18 RFID Reader, and Ultrasonic Sensor to build this project. When employees scan the RFID card, it will measure the body temperature of employees with a non-contact infrared thermometer and log the Name and Temperature of that employee directly to the excel sheet. So in this tutorial, we are going to build an RFID based Contactless Temperature Monitoring System using a contactless temperature sensor with Arduino. The government made it compulsory to scan everyone before entering the office, school, or any other crowded place. These scans are being used to identify potential patients of Covid-19. Since the outbreak of Covid-19, infrared thermometers are being used as a screening tool to scan the people at Airports, Railway Stations, and other crowded establishments.
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