diff --git a/firmware/test.py b/firmware/test.py
new file mode 100755
index 0000000..8e24d41
--- /dev/null
+++ b/firmware/test.py
@@ -0,0 +1,20 @@
+#!/usr/bin/python
+
+import usb
+
+usbdev = usb.core.find(idVendor=0x1fc9, idProduct=0x0003)
+
+usbdev.set_configuration()
+
+epo = usb.util.find_descriptor(
+          usbdev.get_interface_altsetting(),
+          custom_match = lambda e: \
+              usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_OUT)
+
+epi = usb.util.find_descriptor(
+          usbdev.get_interface_altsetting(),
+          custom_match = lambda e: \
+              usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN)
+
+print epo.write('@A')
+print epi.read(8)