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import usb.core
 import usb.util
 import requests
 import sys
 
 # Replace with your keyboard's VID and PID (e.g., 0x046d)
 VENDOR_ID = 0xXXXX 
 PRODUCT_ID = 0xYYYY
 URL = "http://your-api-endpoint.com"
 
 # Map HID scancodes to characters (extend this as needed)
 HID_MAP = {
     0x04: 'a', 0x08: 'e', 0x10: 'm', 0x17: 't',
     0x1e: '1', 0x1f: '2', 0x20: '3', 0x21: '4', 0x22: '5',
     0x23: '6', 0x24: '7', 0x25: '8', 0x26: '9', 0x27: '0',
     0x28: 'ENTER'
 }
 
 def main():
     # Find the device
     dev = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID)
     if dev is None:
         print("Device not found. Check VID/PID.")
         return
 
     # Detach kernel driver to stop keyboard from typing into other windows
     for interface in [0, 1]: # Keyboards often have 2 interfaces (Keys and Media keys)
         try:
             if dev.is_kernel_driver_active(interface):
                 dev.detach_kernel_driver(interface)
                 print(f"Detached kernel driver on interface {interface}")
         except Exception:
             pass
 
     # Claim the first interface (usually index 0 for standard keys)
     usb.util.claim_interface(dev, 0)
     
     # Identify the input endpoint
     endpoint = dev[0][(0,0)][0]
     
     print(f"Listening for macros... Sending to {URL}")
     buffer = ""
     last_key = 0
 
     try:
         while True:
             try:
                 # Read 8 bytes of raw HID data
                 data = dev.read(endpoint.bEndpointAddress, endpoint.wMaxPacketSize, timeout=100)
                 
                 # Standard keyboard reports: byte 2 is the first key pressed
                 current_key = data[2]
                 
                 # Only process if key changed (avoid repeats)
                 if current_key != 0 and current_key != last_key:
                     char = HID_MAP.get(current_key)
                     
                     if char == 'ENTER':
                         print(f"Sending Macro: {buffer}")
                         requests.post(URL, data={'message': buffer})
                         buffer = "" # Reset buffer
                     elif char:
                         buffer += char
                 
                 last_key = current_key
             except usb.core.USBError as e:
                 if e.errno == 110: # Timeout is normal when no keys are pressed
                     continue
                 break
     except KeyboardInterrupt:
         print("\nExiting and releasing device...")
     finally:
         usb.util.release_interface(dev, 0)
         dev.attach_kernel_driver(0)
 
 if __name__ == "__main__":
     main()

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