This is IOT Based Smart Shopping cart project, this is an amazing project not only for school students but also for college students, in this project I am going to show you this project.
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In this project we can purchase items by just scanning the RFID Tags, here we used a WemosD1 Mini module, which is programmed by Arduino IDE, in this project whenever card scanned, it reads the Total Cart value and count the overall cost and send all the details to the local IP address.
WemosD1 mini is an Embedded Wifi module, which simply sends all the details to the local ip address, whenever any RFID Card is scanned by EM18 RFID Reader Module, EM18 module sends all the data to wemosd1 mini module and wemosd1 mini module sends all the data to thr local ip address.
Components :
1. WemosD1 Mini : This module is the heart of entre project, basically its the processing unit of project, and it is the wifi module, whenever RFID module reads any card, it sends data to the wemos module via serial communication, wemos module process this data.
2. EM18 RFID Module : this is 125Khz RFID module, which reads RFID tags and send a unique ID to wemos Module, this unique id is stored in the memory of module, when ID matches with registered ID, it simply add the value in the Cart.
3. 16X2 I2C LCD : Here 16x2 i2c lcd is used, which connects to the wemos module via i2c protocol, this lcd is used for interface and user interface.
4. Buttons : momentary buttons are used for few functionality
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