Tutorial of Ethernet Based UHF RFID Reader

soliddigi

  In this tutorial, we are going to build Ethernet based UHF RFID reader.
The hardware includes the following:

   

• TTL UART UHF RFID reader module    
  
• Spruce Board   
  
• UHF RFID antenna
  

The following is a system picture:
 
 
The jump wire connection is as follows:
1. Spruce GPIO pin 40 -> UHF RFID GND
2. Spruce GPIO pin 14 -> UHF RFID RX
3. Spruce GPIO pin 15 -> UHF RFID TX.
 
The Ethernet firmware that is loaded to the spruce board can be downloaded here.
The TCP IP test tool can be downloaded here.
 
The following is a screen shot of using TCP to read the tag:
 

 

 
 By decoding the message, we can see that one tag is found,