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simple-program.py
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simple-program.py
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#!/usr/bin/env python
# turing-smart-screen-python - a Python system monitor and library for USB-C displays like Turing Smart Screen or XuanFang
# https://github.com/mathoudebine/turing-smart-screen-python/
# Copyright (C) 2021-2023 Matthieu Houdebine (mathoudebine)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# This file is a simple Python test program using the library code to display custom content on screen (see README)
import os
import signal
import sys
import time
from datetime import datetime
# Import only the modules for LCD communication
from library.lcd.lcd_comm_rev_a import LcdCommRevA, Orientation
from library.lcd.lcd_comm_rev_b import LcdCommRevB
from library.lcd.lcd_comm_rev_c import LcdCommRevC
from library.lcd.lcd_comm_rev_d import LcdCommRevD
from library.lcd.lcd_simulated import LcdSimulated
from library.log import logger
# Set your COM port e.g. COM3 for Windows, /dev/ttyACM0 for Linux, etc. or "AUTO" for auto-discovery
# COM_PORT = "/dev/ttyACM0"
# COM_PORT = "COM5"
COM_PORT = "AUTO"
# Display revision:
# - A for Turing 3.5" and UsbPCMonitor 3.5"/5"
# - B for Xuanfang 3.5" (inc. flagship)
# - C for Turing 5"
# - D for Kipye Qiye Smart Display 3.5"
# - SIMU for 3.5" simulated LCD (image written in screencap.png)
# - SIMU5 for 5" simulated LCD
# To identify your smart screen: https://github.com/mathoudebine/turing-smart-screen-python/wiki/Hardware-revisions
REVISION = "A"
stop = False
if __name__ == "__main__":
def sighandler(signum, frame):
global stop
stop = True
# Set the signal handlers, to send a complete frame to the LCD before exit
signal.signal(signal.SIGINT, sighandler)
signal.signal(signal.SIGTERM, sighandler)
is_posix = os.name == 'posix'
if is_posix:
signal.signal(signal.SIGQUIT, sighandler)
# Build your LcdComm object based on the HW revision
lcd_comm = None
if REVISION == "A":
logger.info("Selected Hardware Revision A (Turing Smart Screen 3.5\" & UsbPCMonitor 3.5\"/5\")")
# NOTE: If you have UsbPCMonitor 5" you need to change the width/height to 480x800 below
lcd_comm = LcdCommRevA(com_port=COM_PORT, display_width=320, display_height=480)
elif REVISION == "B":
logger.info("Selected Hardware Revision B (XuanFang screen 3.5\" version B / flagship)")
lcd_comm = LcdCommRevB(com_port=COM_PORT)
elif REVISION == "C":
logger.info("Selected Hardware Revision C (Turing Smart Screen 5\")")
lcd_comm = LcdCommRevC(com_port=COM_PORT)
elif REVISION == "D":
logger.info("Selected Hardware Revision D (Kipye Qiye Smart Display 3.5\")")
lcd_comm = LcdCommRevD(com_port=COM_PORT)
elif REVISION == "SIMU":
logger.info("Selected 3.5\" Simulated LCD")
lcd_comm = LcdSimulated(display_width=320, display_height=480)
elif REVISION == "SIMU5":
logger.info("Selected 5\" Simulated LCD")
lcd_comm = LcdSimulated(display_width=480, display_height=800)
else:
logger.error("Unknown revision")
try:
sys.exit(1)
except:
os._exit(1)
# Reset screen in case it was in an unstable state (screen is also cleared)
lcd_comm.Reset()
# Send initialization commands
lcd_comm.InitializeComm()
# Set brightness in % (warning: revision A display can get hot at high brightness! Keep value at 50% max for rev. A)
lcd_comm.SetBrightness(level=10)
# Set backplate RGB LED color (for supported HW only)
lcd_comm.SetBackplateLedColor(led_color=(255, 255, 255))
# Set orientation (screen starts in Portrait)
lcd_comm.SetOrientation(orientation=Orientation.LANDSCAPE)
# Define background picture
background = f"res/backgrounds/example_{lcd_comm.get_width()}x{lcd_comm.get_height()}.png"
# Display sample picture
logger.debug("setting background picture")
start = time.perf_counter()
lcd_comm.DisplayBitmap(background)
end = time.perf_counter()
logger.debug(f"background picture set (took {end - start:.3f} s)")
# Display sample text
lcd_comm.DisplayText("Basic text", 50, 85)
# Display custom text with solid background
lcd_comm.DisplayText("Custom italic multiline text\nright-aligned", 5, 120,
font="roboto/Roboto-Italic.ttf",
font_size=20,
font_color=(0, 0, 255),
background_color=(255, 255, 0),
align='right')
# Display custom text with transparent background
lcd_comm.DisplayText("Transparent bold text", 5, 180,
font="geforce/GeForce-Bold.ttf",
font_size=30,
font_color=(255, 255, 255),
background_image=background)
# Display the current time and some progress bars as fast as possible
bar_value = 0
while not stop:
start = time.perf_counter()
lcd_comm.DisplayText(str(datetime.now().time()), 160, 2,
font="roboto/Roboto-Bold.ttf",
font_size=20,
font_color=(255, 0, 0),
background_image=background)
lcd_comm.DisplayProgressBar(10, 40,
width=140, height=30,
min_value=0, max_value=100, value=bar_value,
bar_color=(255, 255, 0), bar_outline=True,
background_image=background)
lcd_comm.DisplayProgressBar(160, 40,
width=140, height=30,
min_value=0, max_value=19, value=bar_value % 20,
bar_color=(0, 255, 0), bar_outline=False,
background_image=background)
lcd_comm.DisplayRadialProgressBar(98, 260, 25, 4,
min_value=0,
max_value=100,
value=bar_value,
angle_sep=0,
bar_color=(0, 255, 0),
font_color=(255, 255, 255),
background_image=background)
lcd_comm.DisplayRadialProgressBar(222, 260, 40, 13,
min_value=0,
max_value=100,
angle_start=405,
angle_end=135,
angle_steps=10,
angle_sep=5,
clockwise=False,
value=bar_value,
bar_color=(255, 255, 0),
text=f"{10 * int(bar_value / 10)}°C",
font="geforce/GeForce-Bold.ttf",
font_size=20,
font_color=(255, 255, 0),
background_image=background)
bar_value = (bar_value + 2) % 101
end = time.perf_counter()
logger.debug(f"refresh done (took {end - start:.3f} s)")
# Close serial connection at exit
lcd_comm.closeSerial()