A Python script to demonstrate a 'hidden' feature of the Pimoroni Display-o-tron Hat : lcd shifting

jiggle.py

#!/usr/bin/env python
print("""
This example shows you a feature of the LCD hardware used
by the Dot HAT. You should see some text dance!

Press CTRL+C to exit.
""")

import dothat.backlight as backlight
import dothat.lcd as lcd
import atexit
import time

def tidyup():
    backlight.off()
    lcd.clear()

# This line gives us access to features of the underlying
# LCD which are not exposed in the dothat.lcd code.
baselcd = lcd.lcd

backlight.graph_off()
backlight.rgb(92,172,238)

lcd.set_cursor_position(2,1)
lcd.write(" *dance time* ")

atexit.register(tidyup)

while True:
    baselcd.shift_left()
    time.sleep(0.15)
    baselcd.shift_right()
    time.sleep(0.15)