matekasse_NFC-Reader/NFC_Reader.py
2024-04-12 22:01:57 +02:00

40 lines
1.1 KiB
Python

import time
import nfc
import subprocess
import requests
import asyncio
import oled
url="http://172.16.1.105/api/"
def get_reader():
devices = subprocess.check_output("lsusb")
for i in devices.split(b'\n'):
if str(i).__contains__("Advanced Card Systems, Ltd ACR122U"):
bus = str(i).split(":")[0].split(" Device ")[0].split("Bus ")[1]
device = str(i).split(":")[0].split("Device ")[1]
return("usb:{}:{}".format(bus, device))
raise Exception("\n\n Error: NFC reader not found")
def onTagSense(tag):
id = int.from_bytes(tag.identifier, "big")
response = requests.post(f"{url}tag_id", data={"id":id})
try:
if response.json()["mode"] == "balance" or response.json()["mode"] == "message":
asyncio.run(oled.Balance(response.json()["username"], response.json()["balance"]))
return True
except:
None
return False
def start_nfc_normal():
device = get_reader()i
clf = nfc.ContactlessFrontend(device)
clf.open(device)
while True:
clf.connect(rdwr={'on-connect': onTagSense, 'beep-on-connect': True })
time.sleep(0.75)
if __name__ == "__main__":
start_nfc_normal()