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money_acceptor.py
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money_acceptor.py
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import time
import serial
import threading
import file_io
import denexapp_config as dconfig
import math
class money_acceptor(threading.Thread):
replies = {
0x80: "[Device start byte]",
0x8f: "Power supply on / Bill verified",
0x26: "Communication failed",
0x81: "[Bill byte]",
0x40: "Bill value 1",
0x41: "Bill value 2",
0x42: "Bill value 3",
0x43: "Bill value 4",
0x44: "Bill value 5",
0x10: "Stacked (Bill accept finished)",
0x11: "Bill accept failed",
0x20: "Motor failure",
0x21: "Checksum error",
0x22: "Bill jam",
0x23: "Bill remove",
0x24: "Stacker open",
0x25: "Sensor problem",
0x27: "Bill fish",
0x28: "Stacker problem",
0x29: "Bill reject",
0x2A: "Invalid command",
0x2E: "Reserved",
0x2F: "Exception has been recovered",
0x5E: "Disable acceptor response"}
reverse_replies = {}
for i, k in replies.items():
reverse_replies[k] = i
commands = {
"accept": 0x02,
"reject": 0x0f,
"escrow_holdt": 0x18,
"enable": 0x3e,
"disable": 0x5e,
"get_status": 0x0c,
"reset": 0x30,
}
def __init__(self):
threading.Thread.__init__(self)
self.cash_last_pay_time = time.time()
self.cash_inside = file_io.read("cash_inside_file")
self.cash_banknotes = file_io.read("cash_banknotes_file")
self.capacity = file_io.read("cash_capacity_file")
if self.capacity == 0:
self.set_capacity(dconfig.money_capacity_default)
self.price = file_io.read("cash_price_file")
if self.price == 0:
self.set_price(dconfig.payment_price_default)
self.cash_session = 0
self.accept_money_var = False
self.money_send_warning = False
self.ser = serial.Serial(dconfig.money_device, 9600)
self.initialized = True
def able_to_work(self):
return self.cash_banknotes <= (self.capacity - math.ceil(self.price/10))
def set_capacity(self, capacity):
self.capacity = capacity
file_io.write("cash_capacity_file", capacity)
def set_price(self, price):
self.price = price
file_io.write("cash_price_file", price)
def reset(self):
self.cash_inside = 0
self.cash_banknotes = 0
file_io.write("cash_inside_file", self.cash_inside)
file_io.write("cash_banknotes_file", self.cash_banknotes)
self.money_send_warning = False
def banknotes_inside(self):
return self.cash_banknotes
def money_inside(self):
return self.cash_inside
def send(self, command):
print "money ->", command
self.ser.write(chr(self.commands[command]))
def read(self):
message = ord(self.ser.read())
if message in self.replies.keys():
print "money <-", message, self.replies[message]
else:
print "money <-", message
return message
def add_cash(self, value):
self.cash_inside += value
self.cash_banknotes += 1
self.cash_session += value
self.cash_last_pay_time = time.time()
file_io.write("cash_inside_file", self.cash_inside)
file_io.write("cash_banknotes_file", self.cash_banknotes)
def accept_money(self):
self.accept_money_var = True
def reject_money(self):
self.accept_money_var = False
def run(self):
self.__start_working_action()
def __start_working_action(self):
self.send("accept")
print self.ser.name
while True:
time.sleep(0.01)
if self.ser.inWaiting():
print "ser.inWaiting"
response = self.read()
# init
if response == self.reverse_replies["Power supply on / Bill verified"]\
and self.initialized is False:
self.send("accept")
self.initialized = True
# disable inhibit mode
if response == self.reverse_replies["Communication failed"]:
self.send("accept")
#accept a bill
if response == self.reverse_replies["[Bill byte]"]:
after_bill_byte = self.read()
if after_bill_byte == self.reverse_replies["Power supply on / Bill verified"]:
after_bill_byte = self.read()
if self.accept_money_var is True:
if after_bill_byte == self.reverse_replies["Bill value 1"]:
self.send("accept")
self.add_cash(10)
print "10 accept sent"
elif after_bill_byte == self.reverse_replies["Bill value 2"]:
self.send("accept")
self.add_cash(50)
print "50 accept sent"
elif after_bill_byte == self.reverse_replies["Bill value 3"]:
self.send("accept")
self.add_cash(100)
print "100 accept sent"
else:
#self.send("reject")
print "reject sent, accept money is true"
time.sleep(7)
self.initialized = False
self.send("enable")
else:
#print "reject sent"
print "reject, accept money is false"
time.sleep(7)
self.initialized = False
self.send("enable")