diff --git a/led-badge-11x44.py b/led-badge-11x44.py
index 6e80ca2..e3c31ec 100755
--- a/led-badge-11x44.py
+++ b/led-badge-11x44.py
@@ -23,7 +23,10 @@
 
 import sys, os, re, time, argparse
 from array import array
-import usb.core
+if sys.platform == "darwin":
+  import pyhidapi
+else:
+  import usb.core
 
 __version = "0.6"
 
@@ -335,16 +338,30 @@ parser.add_argument('--mode-help', action='version', help=argparse.SUPPRESS, ver
  (No "rotation" or "smothering"(?) effect can be expected, though)
 """ % sys.argv[0])
 args = parser.parse_args()
-
-dev = usb.core.find(idVendor=0x0416, idProduct=0x5020)
-if dev is None:
-  print("No led tag with vendorID 0x0416 and productID 0x5020 found.")
-  print("Connect the led tag and run this tool as root.")
-  sys.exit(1)
-if dev.is_kernel_driver_active(0):
-  dev.detach_kernel_driver(0)
-dev.set_configuration()
-print("using [%s %s] bus=%d dev=%d" % (dev.manufacturer, dev.product, dev.bus, dev.address))
+if sys.platform == "darwin":
+  pyhidapi.hid_init()
+  devinfo = pyhidapi.hid_enumerate(0x0416, 0x5020)
+  #dev = pyhidapi.hid_open(0x0416, 0x5020)
+else:
+  dev = usb.core.find(idVendor=0x0416, idProduct=0x5020)
+
+if sys.platform == "darwin":
+  if devinfo:
+    dev = pyhidapi.hid_open_path(devinfo[0].path)
+    print("using [%s %s] int=%d page=%s via HIDAPI" % (devinfo[0].manufacturer_string, devinfo[0].product_string, devinfo[0].interface_number, devinfo[0].usage_page))
+  else:
+    print("No led tag with vendorID 0x0416 and productID 0x5020 found.")
+    print("Connect the led tag and run this tool as root.")
+    sys.exit(1)
+else:
+  if dev is None:
+    print("No led tag with vendorID 0x0416 and productID 0x5020 found.")
+    print("Connect the led tag and run this tool as root.")
+    sys.exit(1)
+  if dev.is_kernel_driver_active(0):
+    dev.detach_kernel_driver(0)
+  dev.set_configuration()
+  print("using [%s %s] bus=%d dev=%d" % (dev.manufacturer, dev.product, dev.bus, dev.address))
 
 if args.preload:
   for file in args.preload:
@@ -371,5 +388,11 @@ if needpadding:
 # print(buf)
 for i in range(int(len(buf)/64)):
   time.sleep(0.1)
-  dev.write(1, buf[i*64:i*64+64])
+  if sys.platform == "darwin":
+    pyhidapi.hid_write(dev, buf[i*64:i*64+64])
+  else:
+    dev.write(1, buf[i*64:i*64+64])
+
+if sys.platform == "darwin":
+  pyhidapi.hid_close(dev)