When the RFID card is swiped close to the Reader, the Reader will provide the unique codes through the output serial port when connected to NodeMCU. As discussed above, RFID tags contain a unique 12-digit code and can be decoded through the use of an RFID reader. SEL: This must be HIGH for using RS232 (LOW if using WEIGAND)ĭata 1: WEIGAND data 1 Find out a Unique 12 digit Code for RFID Tagīefore programming the NodeMCU for the smart shopping cart project, we must first find out the unique code of the 12-digit RFID tag. TX: Serial data Transmitter pin of EM18 for RS232 (Output) The cart information and the total value will be displayed on the web page and on the LCD screen. Here we use RFID cards and RFID readers with Arduino to build the Smart Shopping Cart project. Today we will create a smart shopping cart with an automatic checkout system that reduces waiting time and makes the process very smooth and easy. We have all waited in line for payment in shopping malls and other places, it is very exhausting and a lot of time is wasted in the billing process. Find out a Unique 12 digit Code for RFID Tag.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |