公司需要纸币器开发，参考纸币器文档和网上的一篇vb版本，代码如下：
# -*- coding:utf-8 -*- # Author: Pete Yim<xpHook@gmail.com> # Date : 13-7-31 import threading import serial from time import sleep GLOBAL_COUNT = 0 GLOBAL_OUT_INIT_NUM = 0 GLOBAL_OUT_CHECK_NUM = 0 COMMAND_INIT_FLAG = False COMMAND_CHECK_FLAG = False COMMAND_OUTPUT = '' GLOBAL_CASH_1 = 0 GLOBAL_CASH_5 = 0 GLOBAL_CASH_10 = 0 GLOBAL_CASH_20 = 0 GLOBAL_CASH_50 = 0 SERIAL_SETTING = { 'PORT' : 4, 'BAUDRATE' : 9600, 'BYTESIZE' : serial.EIGHTBITS, 'PARITY' : serial.PARITY_NONE, 'STOPBITS' : serial.STOPBITS_TWO } DATA_OUT_DIC = { 'DATA_OUT_1' : '7F8001116582', 'DATA_OUT_2' : '7F000123C988', 'DATA_OUT_3' : '7F800226FC3B56', 'DATA_OUT_4' : '7F000125DD88', 'DATA_OUT_5' : '7F0004240301126757', 'DATA_OUT_6' : '7F0001051E08', 'DATA_OUT_7' : '7F8001195602', 'DATA_OUT_8' : '7F0001093608', 'DATA_OUT_9' : '7F8001071202', 'DATA_OUT_10' : '7F0003029F0021DA', 'DATA_OUT_11' : '7F80010A3F82', 'DATA_OUT_12' : '7F0001071188', 'DATA_OUT_13' : '7F8003029F002266', 'DATA_OUT_14' : '7F00010A3C08' } class CashSerial(threading.Thread): def __init__(self): threading.Thread.__init__(self) self.__terminate = False def open(self, settings): try: self.serial = serial.Serial(port=SERIAL_SETTING['PORT'], baudrate=SERIAL_SETTING['BAUDRATE'], bytesize=SERIAL_SETTING['BYTESIZE'], parity=SERIAL_SETTING['PARITY'], stopbits=SERIAL_SETTING['STOPBITS']) self.serial.flushInput() self.serial.flushOutput() global COMMAND_INIT_FLAG COMMAND_INIT_FLAG = True except Exception, msg: return False, msg.message.decode("gbk") return True, "success" def resetArduino(self): self.serial.setDTR(0) sleep(0.1) self.serial.setDTR(1) def terminate(self): self.__terminate = True def send(self, data): self.serial.write(data) def recv(self): data, quit = '', False while not self.__terminate: try: n = self.serial.inWaiting() if n: data += self.serial.read(n) # for l in xrange(len(data)): # print '%02X' % ord(data[l]) return data.encode('hex') except Exception as ex: print str(ex) return data def close(self): if self.serial.isOpen(): self.serial.close() def run(self): running = True i = 0 while running: sleep(0.5) # print '*******>> ' + str(i) GLOBAL_COUNT = i i = i + 1 #---------------------- self.exec_command_init() sleep(0.02) self.exec_command_check() global COMMAND_CHECK_FLAG if COMMAND_CHECK_FLAG: recvdata = self.recv() # print "received data >>> " + str(recvdata) self.exec_count_cash(recvdata) def exec_command_init(self): global COMMAND_INIT_FLAG, GLOBAL_OUT_INIT_NUM, COMMAND_CHECK_FLAG if COMMAND_INIT_FLAG: GLOBAL_OUT_INIT_NUM += 1 if GLOBAL_OUT_INIT_NUM == 1: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 2: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 3: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 4: send_data = str(DATA_OUT_DIC['DATA_OUT_2']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 5: send_data = str(DATA_OUT_DIC['DATA_OUT_3']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 6: send_data = str(DATA_OUT_DIC['DATA_OUT_4']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 7: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 8: send_data = str(DATA_OUT_DIC['DATA_OUT_5']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 9: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 10: send_data = str(DATA_OUT_DIC['DATA_OUT_6']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 11: send_data = str(DATA_OUT_DIC['DATA_OUT_7']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 12: send_data = str(DATA_OUT_DIC['DATA_OUT_1']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 13: send_data = str(DATA_OUT_DIC['DATA_OUT_8']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 14: send_data = str(DATA_OUT_DIC['DATA_OUT_9']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 15: send_data = str(DATA_OUT_DIC['DATA_OUT_10']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 16: send_data = str(DATA_OUT_DIC['DATA_OUT_11']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 17: send_data = str(DATA_OUT_DIC['DATA_OUT_12']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 18: send_data = str(DATA_OUT_DIC['DATA_OUT_13']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 19: send_data = str(DATA_OUT_DIC['DATA_OUT_14']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 20: send_data = str(DATA_OUT_DIC['DATA_OUT_9']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 21: send_data = str(DATA_OUT_DIC['DATA_OUT_12']).decode('hex') self.send(send_data) elif GLOBAL_OUT_INIT_NUM == 22: send_data = str(DATA_OUT_DIC['DATA_OUT_9']).decode('hex') GLOBAL_OUT_INIT_NUM = 0 COMMAND_INIT_FLAG = False COMMAND_CHECK_FLAG = True self.send(send_data) def exec_command_check(self): global COMMAND_CHECK_FLAG, GLOBAL_OUT_CHECK_NUM if COMMAND_CHECK_FLAG: GLOBAL_OUT_CHECK_NUM += 1 if GLOBAL_OUT_CHECK_NUM == 1: send_data = str(DATA_OUT_DIC['DATA_OUT_12']).decode('hex') self.send(send_data) elif GLOBAL_OUT_CHECK_NUM == 2: send_data = str(DATA_OUT_DIC['DATA_OUT_9']).decode('hex') GLOBAL_OUT_CHECK_NUM = 0 self.send(send_data) def exec_count_cash(self, recvdata=''): if recvdata: cach_data = recvdata[8:12] if cach_data == 'ef01': global GLOBAL_CASH_1 GLOBAL_CASH_1 += 1 print '1块钱：' + str(GLOBAL_CASH_1) + '张。' if cach_data == 'ef02': global GLOBAL_CASH_5 GLOBAL_CASH_5 += 1 print '5块钱：' + str(GLOBAL_CASH_5) + '张。' if cach_data == 'ef03': global GLOBAL_CASH_10 GLOBAL_CASH_10 += 1 print '10块钱：' + str(GLOBAL_CASH_10) + '张。' if cach_data == 'ef04': global GLOBAL_CASH_20 GLOBAL_CASH_20 += 1 print '20块钱：' + str(GLOBAL_CASH_20) + '张。' if cach_data == 'ef05': global GLOBAL_CASH_50 GLOBAL_CASH_50 += 1 print '50块钱：' + str(GLOBAL_CASH_50) + '张。' if __name__ == '__main__': cserial = CashSerial() result_status = cserial.open(SERIAL_SETTING) if result_status: cserial.start() # data = "7F8001116582" # hexdata = data.decode("hex") # # myserial.send(hexdata, _type=None) #
插入1元、5元纸币，识别结果为：
1块钱：1张。
5块钱：1张。
