Design of Automatic and Smart Disinfectant Sprayer Using Microcontroller Atmega328

Diverse technological advancements are being made during the current coronavirus pandemic as the initial step towards breaking the coronavirus chain. Spraying a disinfectant liquid regularly is one approach to breaking the COVID pandemic chain, particularly in public spaces. Automation-capable technology can be used to optimize the spraying of disinfection solutions. A disinfectant sprayer chamber is a technological invention as a result of this research. Using the ATemega328 microcontroller as an automatic machine to activate the sprayer pump in response to the identification of surrounding objects by an ultrasonic sensor, disinfection sprayers may be made to run automatically. The ultrasonic sensor's ability to communicate with the microcontroller is heavily dependent on the item's distance reading. The intelligent sprayer system is capable of turning on a 12 volt DC pump with a 5 amp voltage. The entranceway or corridor in the middle of the throng can be treated with this cutting-edge sprayer disinfection control system.