Distance and Temperature Self-Monitoring Device using Radio Frequency (RF) for COVID-19 Safety Protocol

People all around the country have taken precautions to be safe since the COVID-19 outbreak began. It's critical to maintain such precautions until the virus is under control and vaccine is available to protect everyone from contracting it. Taking safety precautions is not always simple and consistent. They are, however, critically vital. This study aims to design and construct a device that will monitor the safe distance and body temperature of the user. The device does not require wi-fi and simply requires a small amount of infrastructure to charge (USB 5v). It utilizes basic technology and may be assembled with commonly available, low-cost components. The device mainly uses the NRF24L01 RF module, ultrasonic sensor and MLX90614 thermometer sensor for the monitoring system. It is also composed of other electronic components like switch, LCD display and power source. The device will prevent the virus from infecting you, your family, and your friends. Results have shown that this device is applicable for distance and temperature monitoring of a person as an aid to prevent the spread of the virus.