diff --git a/member.txt b/member.txt
new file mode 100644
index 0000000..a7a6673
--- /dev/null
+++ b/member.txt
@@ -0,0 +1,3 @@
+04 1D 33 82 B6 20 80-member1
+15 CC FD 34-碩一/增文
+52 B6 DD 02-碩二/學長
diff --git a/uscc_AttendanceSystem.py b/uscc_AttendanceSystem.py
new file mode 100755
index 0000000..977f8a9
--- /dev/null
+++ b/uscc_AttendanceSystem.py
@@ -0,0 +1,208 @@
+#! /usr/bin/env python
+#-*- coding: utf-8 -*-
+from smartcard.System import readers
+from smartcard.util import toHexString
+from smartcard.CardType import AnyCardType
+from smartcard.CardConnectionObserver import ConsoleCardConnectionObserver
+from smartcard.CardMonitoring import CardMonitor, CardObserver
+from datetime import datetime
+from time import sleep
+import sys
+
+# user interface alert
+if len(sys.argv) < 2:
+    print "usage: ./uscc_AttendanceSystem.py <command>\nList of available commands: help, start, getuid, mute, unmute."
+    sys.exit()
+
+# device checkout
+r = readers()
+if len(r) < 1:
+    print "error: No readers available!"
+    sys.exit()
+reader = r[0]
+
+'''print "Available readers: ", r
+print "Using: ", reader'''
+
+# detect command
+
+cmd = sys.argv[1]
+
+if cmd == "help":
+    print "usage: uscc_AttendanceSystem.py <command>\nList of available commands: help, start, getuid, mute, unmute."
+    print "Before executing command, make sure that \"member.txt\" has been sign in."
+    print "\thelp\tShow this help page"
+    print "\tstart\tStart running USCC Attendence System."
+    print "\tmute\tDisable beep sound when card is tagged."
+    print "\tunmute\tEnable beep sound when card is tagged."
+    print "\tgetuid\tPrint UID of the tagged card."
+    sys.exit()
+
+
+# command map
+cmdMap = {
+    "mute": [0xFF, 0x00, 0x52, 0x00, 0x00],
+    "unmute": [0xFF, 0x00, 0x52, 0xFF, 0x00],
+    "getuid": [0xFF, 0xCA, 0x00, 0x00, 0x00],
+}
+
+week_day = {
+    '0': "星期日",
+    '1': "星期一",
+    '2': "星期二",
+    '3': "星期三",
+    '4': "星期四",
+    '5': "星期五",
+    '6': "星期六"
+}
+
+inout = {
+    1 : "進",
+    9 : "出"
+}
+
+COMMAND = cmdMap.get(cmd, cmd)
+
+
+# member dictionary
+member = {}
+array = []
+
+class student():
+    """docstring for student"""
+
+    def __init__(self):
+        self.name = " "
+        self.uid = " "
+        self.Intime = 0
+        self.Outtime = 0
+        self.hour = 0
+
+
+def member():
+
+    global member
+    global array
+    member = {}
+    array = []
+    with open('member.txt', 'r') as file:
+        for kv in [line.strip().split('-') for line in file]:
+            tmp = student()
+            tmp.name = kv[1]
+            tmp.uid = kv[0]
+            array.append(tmp)
+            member[kv[0]] = kv[1]
+
+# getuid
+
+
+class getuidObserver(CardObserver):
+    """A simple card observer that is notified
+    when cards are inserted/removed from the system and
+    prints the list of cards
+    """
+
+    def __init__(self):
+        self.observer = ConsoleCardConnectionObserver()
+        self.log = open('log.txt', 'a')
+
+    def update(self, observable, actions):
+        (addedcards, removedcards) = actions
+
+        GETUID = [0xFF, 0xCA, 0x00, 0x00, 0x00]
+        week = datetime.now().strftime("%w")
+
+        if addedcards:
+            print('Now at ' + datetime.now().strftime("%Y-%m-%d %H:%M:%S - ") + week_day[
+                                           week])
+
+        for card in addedcards:
+            card.connection = card.createConnection()
+            card.connection.connect()
+            response, sw1, sw2 = card.connection.transmit(GETUID)
+
+            if toHexString(response) in member:
+                while (1):
+                    check = int(input("Checkin( 1 ) or Checkout( 9 ) ? : "))
+                    if (check == 1 or check == 9):
+                        if(check == 1):
+                            print('\n{0} success .'.format(
+                                'Checkin' if check != 9 else 'Checkout'))
+                            print(member[toHexString(response)] +
+                                  ', have a nice day.\n')
+                            for x in array:
+                                if(x.uid == toHexString(response)):
+                                    x.Intime = datetime.now()
+                            self.log.write(datetime.now().strftime("%Y-%m-%d %H:%M:%S ") + week_day[
+                                           week] + ' ' + member[toHexString(response)] + " " + inout[check] + '\n')
+                            break
+                        else:
+                            print('\n{0} success .'.format(
+                                'Checkin' if check != 9 else 'Checkout'))
+                            for y in array:
+                                if(y.uid == toHexString(response)):
+                                    y.Outtime = datetime.now()
+                                    y.hour = y.Outtime - y.Intime
+                                    slot = y.hour
+                                    H,rem = divmod(slot.seconds,3600)
+                                    M,_= divmod(rem,60)
+
+                            print(member[toHexString(response)] +
+                                  ', Good Bye !.\n') 
+
+                            s = datetime.now().strftime("%Y-%m-%d %H:%M:%S ") + \
+                                week_day[week] + ' ' + \
+                                member[toHexString(response)] + " " + \
+                                inout[check] + " " + \
+                                str(H) + 'hours:' + str(M) + 'minutes' +'\n'
+                            self.log.write(s)
+                            
+                            
+                            #test
+                            # for name in array:
+                            #     print(name.name)
+                            #     print(name.uid)
+                            #     print(name.Intime)
+                            #     print(name.Outtime)
+                            #     print(name.hour)
+                            break
+                    else:
+                        print("\nerror input ! \n")
+            else:
+                print('Please try again !!!!\n')
+
+
+# main
+
+member()
+
+if type(COMMAND) == list:
+    connection = reader.createConnection()
+    connection.connect()
+    data, sw1, sw2 = connection.transmit(COMMAND)
+
+    if data:
+        print cmd + ": " + toHexString(data)
+
+    if (sw1, sw2) == (0x90, 0x0):
+        print "Status: The operation completed successfully."
+    elif (sw1, sw2) == (0x63, 0x0):
+        print "Status: The operation failed."
+
+elif type(COMMAND) == str:
+    if COMMAND == "start":
+        print("Welcom to USCC Attendance system.")
+    print("Starting Device.")
+    print("")
+
+    cardmonitor = CardMonitor()
+    selectobserver = getuidObserver()
+    cardmonitor.addObserver(selectobserver)
+
+    try:
+        while True:
+            pass
+    except KeyboardInterrupt:
+        cardmonitor.deleteObserver(selectobserver)
+        print("")
+        sys.exit()