Created
February 29, 2016 19:52
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A Python script to show off a "hidden" feature of the Pimoroni Display-o-Tron HAT. Shows how to use double-height text in the LCD.
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| #!/usr/bin/env python | |
| print(""" | |
| This example shows you a feature of the LCD hardware used | |
| by the Dot HAT. You should see double-height text! | |
| 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() | |
| backlight.graph_off() | |
| # This line gives us access to features of the underlying | |
| # LCD which are not exposed in the dothat.lcd code. | |
| baselcd = lcd.lcd | |
| lcd.clear() | |
| backlight.graph_off() | |
| backlight.rgb(92,172,238) | |
| #lcd.set_cursor_position(0,1) #uncomment for doubling the second line | |
| lcd.write("**ORANGE ALERT**") | |
| atexit.register(tidyup) | |
| while True: | |
| # (1,1) doubles the first line; (1,2) doubles the second | |
| baselcd.double_height(1,1) | |
| backlight.rgb(255,140,0) | |
| backlight.set_graph(100) | |
| time.sleep(0.45) | |
| # turn off double-height | |
| baselcd.double_height(0) | |
| backlight.rgb(92,172,238) | |
| backlight.set_graph(0) | |
| time.sleep(0.15) | |
| # feel free to play an appropriate alarm sound on your Pi! |
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