Encrypted Smiley Secure Protocol - eSSP

In Python 3

eSSP version : 6

Installation

Functionalities

Example

import threading
from eSSP.constants import Status
from eSSP import eSSP # Import the library
from time import sleep
# Create a new object ( Validator Object ) and initialize it ( In debug mode, so it will print debug infos )
validator = eSSP(com_port="/dev/ttyUSB0", ssp_address="0", nv11=False, debug=True)
def event_loop():
 while True:
 # ---- Example of interaction with events ---- #
 if validator.nv11: # If the model is an NV11, put every 100 note in the storage, and others in the stack(cashbox), but that's just for this example
 (note, currency,event) = validator.get_last_event()
 if note == 0 or currency == 0 or event == 0:
 pass # Operation that do not send money info, we don't do anything with it
 else:
 if note != 4 and event == Status.SSP_POLL_CREDIT:
 validator.print_debug("NOT A 100 NOTE")
 validator.nv11_stack_next_note()
 validator.enable_validator()
 elif note == 4 and event == Status.SSP_POLL_READ:
 validator.print_debug("100 NOTE")
 validator.set_route_storage(100) # Route to storage
 validator.do_actions()
 validator.set_route_cashbox(50) # Everything under or equal to 50 to cashbox ( NV11 )
 sleep(0.5)
t1 = threading.Thread(target=event_loop) # Create a new thread on the Validator System Loop ( needed for the signal )
t1.setDaemon(True) # Set the thread as daemon because it don't catch the KeyboardInterrupt, so it will stop when we cut the main thread
t1.start() # Start the validator system loop thread ( Needed for starting sending action )
try: # Command Interpreter
 while True:
 choice = input("")
 if choice == "p": # Payout "choice" value bill ( 10, 20, 50, 100, etc. )
 choice = input("")
 validator.payout(int(choice))
 elif choice == "s": # Route to cashbox ( In NV11, it is any amount <= than "choice" )
 choice = input("")
 validator.set_route_storage(int(choice))
 elif choice == "c": # Route to cashbox ( In NV11, it is any amount <= than "choice" )
 choice = input("")
 validator.set_route_cashbox(int(choice))
 elif choice == "e": # Enable ( Automaticaly disabled after a payout )
 validator.enable_validator()
 elif choice == "r": # Reset ( It's like a "reboot" of the validator )
 validator.reset()
 elif choice == "y": # NV11 Payout last entered ( next available )
 print("Payout next 1")
 validator.nv11_payout_next_note()
 elif choice == "d": # Disable
 validator.disable_validator()
 elif choice == "D": # Disable the payout device
 validator.disable_payout()
 elif choice == "E": # Empty the storage to the cashbox
 validator.empty_storage()
 elif choice == "g": # Get the number of bills denominated with their values
 choice = input("")
 validator.get_note_amount(int(choice))
 sleep(1)
 print("Number of bills of %s : %s"%(choice, validator.response_data['getnoteamount_response']))
except KeyboardInterrupt: # If user do CTRL+C
 validator.close() # Close the connection with the validator
 print("Exiting")
 exit(0)

Running example 1 with a NV200 :