Working display on the LCD
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.gitignore
vendored
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1
.gitignore
vendored
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lcd-env/
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@@ -1,18 +1,27 @@
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#!/usr/bin/env python3
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"""
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Catchphrase
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Author: Jerick Oates
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Catchphrase with LCD Output (Centered & Clean)
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"""
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import random
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import time
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import threading
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import sys
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from RPLCD.i2c import CharLCD
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# ---------- CONFIG ----------
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WORDS_FILE = "words.txt" # file with one word per line
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TIMER_SECONDS = 30 # how long the timer runs
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WORDS_FILE = "words.txt" # file with one word per line
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TIMER_SECONDS = 30 # how long the timer runs
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I2C_ADDRESS = 0x27 # change if your LCD address is different
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I2C_CHIP = 'PCF8574' # common backpack chip
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# ---------- LCD ----------
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lcd = CharLCD(I2C_CHIP, I2C_ADDRESS)
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def lcd_print(text, line=0):
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"""Print text centered on given LCD line (0 or 1), padded to clear leftovers."""
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lcd.cursor_pos = (line, 0)
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lcd.write_string(text.center(16)) # 16 chars wide
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# ---------- HELPERS ----------
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def load_words(path=WORDS_FILE):
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@@ -27,59 +36,50 @@ def load_words(path=WORDS_FILE):
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print(f"❌ Error loading words: {e}")
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sys.exit(1)
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def pick_random(words):
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"""Return a random word from the list."""
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return random.choice(words)
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# ---------- TIMER THREAD ----------
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class CountdownTimer(threading.Thread):
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"""
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Background thread that counts down for TIMER_SECONDS.
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When it finishes, it calls an optional callback.
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"""
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def __init__(self, seconds=TIMER_SECONDS, on_finish=None):
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super().__init__()
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self.seconds = seconds
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self.on_finish = on_finish # function to call when timer ends
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self.on_finish = on_finish
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self._running = threading.Event()
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self._running.set()
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def run(self):
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for _ in range(self.seconds):
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if not self._running.is_set():
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break # stopped early by user
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break
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time.sleep(1)
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# Timer finished (or was stopped)
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self._running.clear()
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if self.on_finish:
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self.on_finish() # announce completion
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self.on_finish()
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def stop(self):
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"""Stop the timer before it reaches zero."""
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self._running.clear()
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@property
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def is_running(self):
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return self._running.is_set()
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# ---------- MAIN LOOP ----------
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def main():
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words = load_words()
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timer_thread = None
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print("=== Catchphrase, but Better ===")
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print("=== Catchphrase, but Better (LCD) ===")
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print("Commands:")
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print(" start - begin the 30-second timer and show a word immediately")
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print(" next - show another random word while the timer is running")
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print(" stop - cancel the timer early")
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print(" exit / quit - leave the program")
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# Helper that prints when the timer ends
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def announce_finish():
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print("\n⏰ Time is up! Returning to menu.")
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lcd_print("Time is up!", line=0)
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print("=== Catchphrase ===")
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print("Commands:")
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print(" start - begin the 30-second timer and show a word immediately")
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@@ -90,13 +90,14 @@ def main():
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while True:
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try:
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cmd = input("\n> ").strip().lower()
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except EOFError:
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except EOFError:
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break
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if cmd in ("exit", "quit"):
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if timer_thread and timer_thread.is_running:
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timer_thread.stop()
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timer_thread.join()
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lcd_print("Goodbye!", line=0)
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print("👋 Goodbye!")
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break
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@@ -104,25 +105,28 @@ def main():
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if timer_thread and timer_thread.is_running:
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print("[!] Timer is already running.")
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else:
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# Start a new timer with the finish callback
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timer_thread = CountdownTimer(on_finish=announce_finish)
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timer_thread.daemon = True # exit when main thread exits
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timer_thread.daemon = True
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timer_thread.start()
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# Show the first word right away
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print(pick_random(words))
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word = pick_random(words)
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print(word)
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lcd_print(word, line=0)
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print(f"[+] 30-second timer started. ({TIMER_SECONDS}s)")
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elif cmd == "next":
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if not (timer_thread and timer_thread.is_running):
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print("[!] No active timer - use 'start' first.")
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else:
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print(pick_random(words))
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word = pick_random(words)
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print(word)
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lcd_print(word, line=0)
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elif cmd == "stop":
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if timer_thread and timer_thread.is_running:
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timer_thread.stop()
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timer_thread.join()
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lcd_print("Stopped early", line=0)
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print("[+] Timer stopped early.")
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else:
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print("[!] There is no running timer to stop.")
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