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from smbus import SMBus
from time import sleep
import time
import os
import speech_recognition as sr
from gpiozero import CPUTemperature
ALIGN_FUNC = {
'left': 'ljust',
'right': 'rjust',
'center': 'center'}
CLEAR_DISPLAY = 0x01
ENABLE_BIT = 0b00000100
LINES = {
1: 0x80,
2: 0xC0,
3: 0x94,
4: 0xD4}
LCD_BACKLIGHT = 0x08
LCD_NOBACKLIGHT = 0x00
class LCD(object):
def __init__(self, address=0x27, bus=1, width=20, rows=4, backlight=True):
self.address = address
self.bus = SMBus(bus)
self.delay = 0.0005
self.rows = rows
self.width = width
self.backlight_status = backlight
self.write(0x33)
self.write(0x32)
self.write(0x06)
self.write(0x0C)
self.write(0x28)
self.write(CLEAR_DISPLAY)
sleep(self.delay)
def _write_byte(self, byte):
self.bus.write_byte(self.address, byte)
self.bus.write_byte(self.address, (byte | ENABLE_BIT))
sleep(self.delay)
self.bus.write_byte(self.address,(byte & ~ENABLE_BIT))
sleep(self.delay)
def write(self, byte, mode=0):
backlight_mode = LCD_BACKLIGHT if self.backlight_status else LCD_NOBACKLIGHT
self._write_byte(mode | (byte & 0xF0) | backlight_mode)
self._write_byte(mode | ((byte << 4) & 0xF0) | backlight_mode)
def text(self, text, line, align='left'):
self.write(LINES.get(line, LINES[1]))
text, other_lines = self.get_text_line(text)
text = getattr(text, ALIGN_FUNC.get(align, 'ljust'))(self.width)
for char in text:
self.write(ord(char), mode=1)
if other_lines and line <= self.rows - 1:
self.text(other_lines, line + 1, align=align)
def backlight(self, turn_on=True):
self.backlight_status = turn_on
self.write(0)
def get_text_line(self, text):
line_break = self.width
if len(text) > self.width:
line_break = text[:self.width + 1].rfind(' ')
if line_break < 0:
line_break = self.width
return text[:line_break], text[line_break:].strip()
def clear(self):
self.write(CLEAR_DISPLAY)
# Error Handling
ERROR_BAD_REQUEST = "the request failed, bad request"
ERROR_UNAUTHORIZED = "you do not have permission to make that request"
ERROR_NOT_FOUND = "the request was not found, try again"
SPEECH_NOT_RECOGNIZED = "we couldn't recognize what you said, try again or \n or check your internet connection"
ERROR_TIMEOUT = "the request took too long check youre internet connection"
# Initialize components and error handling for debugging
try:
lcd_instance = lcd.LCD()
except Exception as e:
print("Error intializing LCD")
try:
cpu_temp = CPUTemperature()
except Exception as e:
print("Error initializing CPU temperature sensor:", e)
try:
recognizer = sr.Recognizer()
except Exception as e:
print("Error initialzing voice recognition, its possible the speech recognition module isn't installed")
try:
microphone = sr.Microphone()
except Exception as e:
print("Error initialzing the microphone \n check if the sound device package is installed")
# clearing the terminal for a cleaner and program like interaction
def clear_terminal():
os.system("cls" if os.name == "nt" else "clear")
# Features
def custom_greeting():
try:
with open("quotes.txt", "r") as file:
quotes = [quote.strip() for quote in file.readlines()]
except FileNotFoundError:
lcd_instance.text("Quotes file missing", 1)
return
for quote in quotes:
first_line = quote[:16]
second_line = quote[16:32]
lcd_instance.text(first_line, 1)
lcd_instance.text(second_line, 2)
time.sleep(3)
lcd_instance.clear()
def pomodoro():
try:
duration_minutes = int(input("Enter duration in minutes: "))
duration_seconds = duration_minutes * 60
print("Pomodoro started for", duration_minutes, "minutes")
lcd_instance.text("Pomodoro Running", 1)
start_count = 0
count = 0
while duration_seconds > 0:
lcd_instance.text(f"Time left: {duration_minutes}:{duration_seconds * 60}", 2)
time.sleep(1)
duration_seconds -= 1
count += 1
if count == start_count + 60:
start_count = start
duration_minutes -= 1
lcd_instance.text("Time's Up!", 1)
time.sleep(3)
except ValueError:
lcd_instance.text("Invalid input", 1)
time.sleep(2)
def system_readings():
while True:
load = os.getloadavg()[0]
temperature = cpu_temp.temperature if cpu_temp else "N/A"
lcd_instance.clear()
lcd_instance.text(f"CPU Load: {load:.2f}", 1)
lcd_instance.text(f"Temp: {temperature}C", 2)
time.sleep(5)
def display_uptime():
try:
with open("/proc/uptime") as f:
uptime_seconds = float(f.readline().split()[0])
uptime_str = time.strftime("%H:%M:%S", time.gmtime(uptime_seconds))
lcd_instance.text(f"Uptime: {uptime_str}", 1)
time.sleep(3)
except Exception as e:
lcd_instance.text("Error reading uptime", 1)
print("Error:", e)
def recognize_speech():
lcd_instance.text("Listening...", 1)
try:
with microphone as source:
recognizer.adjust_for_ambient_noise(source)
audio = recognizer.listen(source)
output = recognizer.recognize_google(audio)
lcd_instance.text("Recognized:", 1)
lcd_instance.text(output[:16], 2)
print("Speech recognized:", output)
return output
except sr.UnknownValueError:
lcd_instance.text(SPEECH_NOT_RECOGNIZED, 1)
print(SPEECH_NOT_RECOGNIZED)
except sr.RequestError as e:
lcd_instance.text(ERROR_UNAUTHORIZED, 1)
print(ERROR_UNAUTHORIZED, e)
except Exception as e:
lcd_instance.text("Speech Error", 1)
print("Error:", e)
return None
def save_notes():
print("Type your notes (type 'stop' to exit):")
while True:
note = input(": ")
if note.lower() in ["stop", "exit", "quit"]:
break
first_line = note[:16]
second_line = note[16:32]
lcd_instance.text(first_line, 1)
lcd_instance.text(second_line, 2)
time.sleep(3)
# Command center to execute features
def command_center():
command = recognize_speech().upper()
if command:
command()
else:
lcd_instance.text(ERROR_NOT_FOUND, 1)
print(ERROR_NOT_FOUND)
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