Example Nine - Scrolling String

examples/qwiic_alphanumeric_ex09_scrolling_string.py
 1# !/usr/bin/env python
 2# ----------------------------------------------------------------------
 3# qwiic_alphanumeric_ex10_scrolling_string.py
 4#
 5# This example tests the scrolling functionality of the display.
 6# ----------------------------------------------------------------------
 7#
 8# Written by Priyanka Makin @ SparkFun Electronics, September 2021
 9#
10# This python library supports the SparkFun Electronics qwiic sensor/
11# board ecosystem on a Raspberry Pi (and compatable) single board 
12# computers.
13#
14# More information on qwiic is at https://www.sparkfun.com/qwiic
15#
16# Do you like this library? Help support SparkFun by buying a board!
17#
18# ======================================================================
19# Copyright (c) 2021 SparkFun Electronics
20#
21# Permission is hereby granted, free of charge, to any person obtaining 
22# a copy of this software and associated documentation files (the 
23# "Software"), to deal in the Software without restriction, including 
24# without limitation the rights to use, copy, modify, merge, publish, 
25# distribute, sublicense, and/or sell copies of the Software, and to 
26# permit persons to whom the Software is furnished to do so, subject to 
27# the following conditions:
28#
29# The above copyright notice and this permission notice shall be 
30# included in all copies or substantial portions of the Software.
31#
32# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
33# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
34# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
35# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
36# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
37# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
38# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
39#=======================================================================
40# Example 10
41
42from __future__ import print_function
43import qwiic_alphanumeric
44import time
45import sys
46
47def run_example():
48
49    print("\nSparkFun Qwiic Alphanumeric - Example 10: Scrolling String")
50    my_display = qwiic_alphanumeric.QwiicAlphanumeric()
51
52    if my_display.begin(0x70, 0x71) == False:
53        print("\nThe Qwiic Alhanumerics aren't connected to the system. Please check your connection", \
54            file=sys.stderr)
55        return
56
57    print("\nQwiic Alphanumerics passed begin!")
58    
59    my_display.print("GET MILK")
60
61    while 1:
62        time.sleep(1)
63        my_display.shift_left()
64        # Alternatively - you could also shift the string to the right
65        #my_display.shift_right()
66
67if __name__ == '__main__':
68    try:
69        run_example()
70    except (KeyboardInterrupt, SystemExit) as exErr:
71        print("\nEnding Example 10")
72        sys.exit(0)