using the code provided in the tutorial, I have created my own test program:
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from Adafruit_CharLCD import Adafruit_CharLCD
from subprocess import *
from time import sleep, strftime
from datetime import datetime
lcd = Adafruit_CharLCD()
when I run this program, it usually prints "WFW7" on the LCD, although sometimes it's "GFW7" or "7FW7". when I try to run the time/date/ip program, I get strange characters. I have double and triple-checked my wiring, and everything appears exactly as the tutorial says it should, but I just can't get good output to appear.
can someone please give me some idea where to start looking for the problem?