| dc.description.abstract | Oxygen Tube have become a much-needed item due to the very fast and easily contagious spread of the virus, making it difficult for everyone to avoid being infected with the COVID-19 type virus that attacks the respiratory body. With these conditions, the oxygen cylinder pressure monitoring device was designed using a pressure transmitter sensor and Internet of Things (IoT) based early warning. This tool is designed to use sensors and electronic circuits to read the volume in the tube through the pressure. The cylinder pressure can represent the volume of O2 gas according to Pascal's law. This tool has a centralized system on the microcontroller, namely the MCU Node which functions as a controller and controller. The microcontroller will process the data and then send it to the internet, namely to the IoT server. By utilizing existing servers such as Thingspeak, sensor data can be monitored from anywhere via a smartphone or PC. With this gas cylinder pressure monitoring tool, it is tested with a pressure of 0 kPa, the sensor voltage is 0.51V, with a pressure of 84 kPa, the sensor voltage is 0.78V, with a pressure of 148 kPa, the sensor voltage is 0.99V, with a pressure of 231. kPa the sensor voltage is 1.27V, with a pressure of 312 kPa the sensor voltage is 1.54V, and with a pressure of 336 kPa the sensor voltage is 1.68V. | en_US |
