diff --git a/doorUtil.py b/doorUtil.py
new file mode 100644
index 0000000..08fba9f
--- /dev/null
+++ b/doorUtil.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+import requests
+from xml.etree import ElementTree as ET
+import csv
+from io import StringIO
+
+from common import *
+
+def hexToCode(hex):
+    b = bin(int(hex, 16))[2:]
+    facility = int(b[0:8], 2)
+    code = int(b[9:24], 2)
+    return((facility, code))
+
+def codeToHex(facility, code):
+    return "{:08X}".format(int(bin(facility)[2:] + "0" + bin(code)[2:] + "1", 2))
+
+# hexToCode("01E29DA1") <-> codeToHex(241, 20176)
+
+def sendSchedule(target_ip):
+    # clear all people
+    outString = StringIO()
+    writer = csv.DictWriter(outString, fieldnames)
+    writer.writeheader()
+    writer.writerow({})
+    outString.seek(0)
+    doCSVImport(target_ip, outString)
+
+    # clear all schedules
+    delXML = ET.Element("VertXMessage")
+    for ii in range(1, 8):
+        ET.SubElement(delXML, "hid:Schedules",
+                      attrib={"action": "DD", "scheduleID": str(ii)})
+    doXMLRequest(target_ip, ET.tostring(delXML))
+
+    # load new schedules
+    with open("schedules.xml", "rb") as f:
+        doXMLRequest(target_ip, f.read())
+
+def sendCardFormat(targetIP, formatName, templateID, facilityCode):
+    # TODO: add delete formats
+    # delete example: <hid:CardFormats action="DD" formatID="7-1-244"/>
+
+    el = ET.Element("VertXMessage")
+    formats = ET.SubElement(el, "hid:CardFormats", attrib={"action": "AD"})
+    fmt = ET.SubElement(formats, "hid:CardFormat",
+                        attrib={"formatName": formatName,
+                                "templateID": str(templateID)})
+    ET.SubElement(fmt, "hid:FixedField",
+                        attrib={"value": str(facilityCode)})
+    return doXMLRequest(targetIP, ET.tostring(el))
+
+def forEachDoor(fxn):
+    for doorName, doorData in config["doors"].items():
+        print(doorName)
+        fxn(doorName, doorData)
+
+#forEachDoor(lambda name, data: sendCardFormat(data["ip"], "A901146A-244", 1, 244))
+#forEachDoor(lambda name, data: sendSchedule(data["ip"]))
diff --git a/sendSchedule.py b/sendSchedule.py
deleted file mode 100755
index e6fd24b..0000000
--- a/sendSchedule.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env python3
-import requests
-from xml.etree import ElementTree as ET
-import csv
-from io import StringIO
-
-from common import *
-
-TARGET_IP = '172.18.51.15'
-
-# clear all people
-outString = StringIO()
-writer = csv.DictWriter(outString, fieldnames)
-writer.writeheader()
-writer.writerow({})
-outString.seek(0)
-doCSVImport(TARGET_IP, outString)
-
-# clear all schedules
-delXML = ET.Element("VertXMessage")
-for ii in range(1, 8):
-    ET.SubElement(delXML, "hid:Schedules",
-                  attrib={"action": "DD", "scheduleID": str(ii)})
-doXMLRequest(TARGET_IP, ET.tostring(delXML))
-
-# load new schedules
-with open("schedules.xml", "rb") as f:
-    doXMLRequest(TARGET_IP, f.read())