Simple Tk UI for setting firmware configuration flags

tools/firmware-config-ui.py

+#!/usr/bin/env python
+#
+# Simple UI for firmware configuration flags.
+# Talks to an fcserver running on localhost.
+#
+# Micah Elizabeth Scott
+# This example code is released into the public domain.
+#
+
+import Tkinter as tk
+import socket
+import struct
+
+s = socket.socket()
+s.connect(('localhost', 7890))
+print "Connected to OPC server"
+
+def setFirmwareConfig(data):
+    s.send(struct.pack(">BBHHH", 0, 0xFF, len(data) + 4, 0x0001, 0x0002) + data)
+
+def update():
+    setFirmwareConfig(chr(
+        noDither.var.get() |
+        (noInterp.var.get() << 1) |
+        (manualLED.var.get() << 2) |
+        (ledOnOff.var.get() << 3) ))
+
+def check(text):
+    v = tk.IntVar()
+    w = tk.Checkbutton(root, command=update, variable=v, text=text)
+    w.var = v
+    w.pack()
+    return w
+
+root = tk.Tk()
+root.title("Fadecandy Firmware Configuration UI")
+
+noDither = check("Disable dithering")
+noInterp = check("Disable interpolation")
+manualLED = check("Built-in LED under manual control")
+ledOnOff = check("Built-in LED manual on/off")
+
+root.mainloop()