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+--- Thread: raspberry use scrolling text two lines together (/thread-34839.html)
raspberry use scrolling text two lines together - fishbone - Sep-06-2021
Hello Everyone,
I connect the 16*2 lcd screen to my raspberry. I want to write two columns scrolling text on the lcd screen.
I use the below code for scrolling text. When I use this code on the two columns, start scrolling the first column after start scrolling the second column. How to synchronous scrolling two columns. I use delay class for time.sleep() but I didn't handle it. I also add the delay class below.
def long_string(display, text='', num_line=1, num_cols=16):
"""
Parameters: (driver, string to print, number of line to print, number of columns of your display)
Return: This function send to display your scrolling string.
"""
if len(text) > num_cols:
display.text(text[:num_cols], num_line)
time.sleep(0.3)
for i in range(len(text) - num_cols + 1):
text_to_print = text[i:i+num_cols]
display.text(text_to_print, num_line)
time.sleep(0.3)
time.sleep(0.3)
else:
display.text(text, num_line)
def delay1(counter):
start1 = time.time()
while True:
time.sleep(0.1)
if time.time() - start1 > 1:
start1 = time.time()
counter = counter - 1
if counter <= 0:
break