Hi, I have good performance reading one tag, it's just a loop until you get good result, next step will be storing multiple tags.Hi. This project is of interest to me. Can you share more about what you are doing and perhaps some code examples? Do you have a GIT repo maybe?
I will use it at work to scan our items, so I don't have repo, here's the most important part of the code:
ps you can ignore time and threading, didn't use it for now, I open port at start and keep it open, if therre will be multiple instances then I would need to close the port after reading.
Code:
import timeimport serialimport threadingREPETITONS = 10DELAY = 0.05class RfidService: def __init__(self, port="/dev/ttyUSB0"): self.port = port self.ser = None self.thread = None self.open_port() # Open the serial port def open_port(self): try: self.ser = serial.Serial( port=self.port, baudrate=115200, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize=serial.EIGHTBITS, timeout=0.05 ) except Exception as e: print("Error opening serial port:", str(e)) # Send a command and receive the response def send_command(self, command): if not self.ser: print("Serial port is not open.") return None try: while True: self.ser.write(bytes.fromhex(command)) #response = self.ser.read(1024) response = self.ser.read_until(expected='\x7e') print(f"Response: {response}") if response.startswith(b"\xBB\x02\x22"): return response #return response except Exception as e: print("Error sending command:", str(e)) return None # Read a single tag def read_one_tag(self): try: print("Scanning tag...") response = self.send_command("BB 00 22 00 00 22 7E") if response.startswith(b"\xBB\x02\x22"): tag_data = response[10:-4] hex_string = tag_data.hex() if len(hex_string) == 20: print("RFID tag data:", hex_string) return ["OK", hex_string] else: print("No RFID tag detected.") return ["error", "No RFID tag detected"] except Exception as e: print("Error:", str(e)) return ["error", str(e)] Statistics: Posted by ivanknezevic — Tue May 21, 2024 7:30 pm