DIV Ventilator Using Arduino with Blood Oxygen Sensing for COVID Pandemic

Automatic Street lighting System is a simple, yet powerful concept, which uses LDR sensor as a switch. It automatically switches OFF lights whenever the sunlight comes visible to the sensor. By using this system energy consumption is also reduced because nowadays the manually operated street lights are not switched off even after the sunlight comes visible and also switching ON earlier before sunset. In this project no need of manual operation like ON time and OFF time setting. Besides, real time online air quality monitoring helps authorities to know the environmental parameters like temperature, humidity, volume of CO, volume of CO2, detection of leakage of any gas - smoke, alcohol, LPG. The value of temperature and humidity are transmitted over internet also so that every person in the range of the system can check it over their smart phones and laptops as these parameters hold importance to everyone. CO, a dangerous parameter is monitored with an extra precaution. A text message is sent to the base station through GSM module whenever its volume exceeds a particular safe limit intended for a particular application. The LDR Value and air quality parameters are uploaded to thing speak server.

Keywords: Arduino, Air Quality, Street Light, Server