• Gonigunta Thejeshwini
• A. Balachandra Reddy

We can see a large amount rush at malls and supermarket on holidays and weekends. During the offer time or more discounts then it becomes more often. Now a day’s people purchase a variety of items and put them in the trolley with question mark to social distancing. After the completion of the shopping one should approach for the counter for billing process. By using barcode reader the cashier creates the bill which is a time consuming process in the modern technological world. This results in long queues at the billing counters and reduces the social distancing and leads to spreading of diseases from one person to another. This project is done to overcome the above disadvantages or the situation . To achieve this solution all products in the mall should be tagged with RFID tags and all trolleys should be equipped with a RFID reader and LCD screen. When anyone puts any product in the trolley its code will be detected automatically, the item name and cost will be displayed on the LCD, thereby the cost gets added to the total bill. If you taken any unwanted item or you don’t want that product then you can take out the product so the amount of the product will be deducted in the total amount and the Wi-Fi module helps to transfer the data via wireless to the central billing unit. Due to the above advantage the customers save their time in the billing counter by paying the bill by means of online payment. IOT will more effective this process. The trolly consists of an Ultrasonic sensor which detect the object Infront of trolly. If the person or object detected less than social distancing it gives beep sound and alert the person who move the trolley. The cart initially checks the status of module whether online or offline. Online communication requires network communication from user and controller will create bridge among the user.

IoT, RFID, Ultrasonic Sensor, Wi-Fi module ESP8266, Touch Sensor switch, Internet of things, ubidots etc.,

"IoT Based Social Distance Shopping using RFID and Ultrasonic Sensor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 11, page no.f574-f580, November-2022, Available :http://www.jetir.org/papers/JETIR2211572.pdf

"IoT Based Social Distance Shopping using RFID and Ultrasonic Sensor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 11, page no. ppf574-f580, November-2022, Available at : http://www.jetir.org/papers/JETIR2211572.pdf