testing button functionality

This commit is contained in:
2025-08-11 20:11:32 -04:00
parent 66f64510f8
commit 79c92c23aa
2 changed files with 73 additions and 167 deletions

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start the virtual env with
source lcd-env/bin/activate

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#!/usr/bin/env python3
"""
Catchphrase with LCD Output (Scores & Reset)
"""
import random
import time
import threading
import sys
import RPi.GPIO as GPIO
from RPLCD.i2c import CharLCD
# ---------- CONFIG ----------
WORDS_FILE = "words.txt" # file with one word per line
TIMER_SECONDS = 30 # how long the timer runs
I2C_ADDRESS = 0x27 # change if your LCD address is different
I2C_CHIP = 'PCF8574' # common backpack chip
# GPIO pin setup for buttons
BUTTON_START_STOP = 17
BUTTON_NEXT = 27
BUTTON_TEAM1 = 22
# ---------- LCD ----------
lcd = CharLCD(I2C_CHIP, I2C_ADDRESS)
GPIO.setmode(GPIO.BCM)
GPIO.setup(BUTTON_START_STOP, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(BUTTON_NEXT, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(BUTTON_TEAM1, GPIO.IN, pull_up_down=GPIO.PUD_UP)
def lcd_print(text, line=0):
"""Print text centered on given LCD line (0 or 1), padded to clear leftovers."""
lcd.cursor_pos = (line, 0)
lcd.write_string(text.center(16))
# LCD setup (adjust address and cols/rows if needed)
lcd = CharLCD('PCF8574', 0x27)
def lcd_update_scores():
"""Update the bottom LCD line with team scores (T1 left, T2 right)."""
lcd.cursor_pos = (1, 0)
score_str = f"{score_t1}{' ' * 14}{score_t2}"
lcd.write_string(score_str)
# ---------- HELPERS ----------
def load_words(path=WORDS_FILE):
try:
with open(path, "r", encoding="utf-8") as f:
words = [line.strip() for line in f if line.strip()]
if not words:
raise ValueError("Word file is empty.")
return words
except Exception as e:
print(f"❌ Error loading words: {e}")
sys.exit(1)
def pick_random(words):
return random.choice(words)
# ---------- TIMER THREAD ----------
class CountdownTimer(threading.Thread):
def __init__(self, seconds=TIMER_SECONDS, on_finish=None):
super().__init__()
self.seconds = seconds
self.on_finish = on_finish
self._running = threading.Event()
self._running.set()
def run(self):
for _ in range(self.seconds):
if not self._running.is_set():
break
time.sleep(1)
self._running.clear()
if self.on_finish:
self.on_finish()
def stop(self):
self._running.clear()
@property
def is_running(self):
return self._running.is_set()
# ---------- SCORE VARIABLES ----------
score_t1 = 0
score_t2 = 0
def add_score(team):
global score_t1, score_t2
if team == 1:
score_t1 += 1
if score_t1 >= 7:
print("🏆 Team 1 wins! Scores reset.")
score_t1 = score_t2 = 0
elif team == 2:
score_t2 += 1
if score_t2 >= 7:
print("🏆 Team 2 wins! Scores reset.")
score_t1 = score_t2 = 0
lcd_update_scores()
def reset_scores():
global score_t1, score_t2
score_t1 = score_t2 = 0
lcd_update_scores()
# ---------- MAIN LOOP ----------
def main():
global score_t1, score_t2
words = load_words()
# Game variables
team1_score = 0
team2_score = 0
timer_running = False
timer_thread = None
seconds = 0
winner_displayed = False
print("=== Catchphrase, with LCD & Scores ===")
print("Commands:")
print(" start - start 30s timer & show a word")
print(" next - show another word while timer runs")
print(" stop - stop timer early")
print(" t1 - add point to Team 1")
print(" t2 - add point to Team 2")
print(" reset - reset both scores to 0")
print(" exit / quit - leave the program")
# Timer function
def timer():
global seconds, timer_running
while timer_running:
seconds += 1
time.sleep(1)
lcd_print("Ready", line=0)
lcd_update_scores()
def update_lcd():
global winner_displayed
lcd.clear()
if winner_displayed:
if team1_score >= 7:
lcd.write_string("Team 1 Wins!")
elif team2_score >= 7:
lcd.write_string("Team 2 Wins!")
else:
lcd.write_string(f"T1:{team1_score} T2:{team2_score}")
lcd.crlf()
lcd.write_string(f"Time: {seconds}s")
def announce_finish():
print("\n⏰ Time is up! Returning to menu.")
lcd_print("Time is up!", line=0)
lcd_update_scores()
def start_stop_timer(channel):
global timer_running, timer_thread
if not timer_running:
timer_running = True
threading.Thread(target=timer, daemon=True).start()
else:
timer_running = False
def next_pressed(channel):
global team1_score, team2_score, winner_displayed
if not winner_displayed:
team2_score += 1
check_winner()
update_lcd()
def team1_pressed(channel):
global team1_score, winner_displayed
if not winner_displayed:
team1_score += 1
check_winner()
update_lcd()
def check_winner():
global winner_displayed, timer_running
if team1_score >= 7 or team2_score >= 7:
winner_displayed = True
timer_running = False
# Attach button event listeners
GPIO.add_event_detect(BUTTON_START_STOP, GPIO.FALLING, callback=start_stop_timer, bouncetime=300)
GPIO.add_event_detect(BUTTON_NEXT, GPIO.FALLING, callback=next_pressed, bouncetime=300)
GPIO.add_event_detect(BUTTON_TEAM1, GPIO.FALLING, callback=team1_pressed, bouncetime=300)
while True:
try:
cmd = input("\n> ").strip().lower()
except EOFError:
break
if cmd in ("exit", "quit"):
if timer_thread and timer_thread.is_running:
timer_thread.stop()
timer_thread.join()
lcd_print("Goodbye!", line=0)
lcd_update_scores()
print("👋 Goodbye!")
break
elif cmd == "start":
if timer_thread and timer_thread.is_running:
print("[!] Timer is already running.")
else:
timer_thread = CountdownTimer(on_finish=announce_finish)
timer_thread.daemon = True
timer_thread.start()
word = pick_random(words)
print(word)
lcd_print(word, line=0)
lcd_update_scores()
print(f"[+] 30-second timer started. ({TIMER_SECONDS}s)")
elif cmd == "next":
if not (timer_thread and timer_thread.is_running):
print("[!] No active timer - use 'start' first.")
else:
word = pick_random(words)
print(word)
lcd_print(word, line=0)
lcd_update_scores()
elif cmd == "stop":
if timer_thread and timer_thread.is_running:
timer_thread.stop()
timer_thread.join()
lcd_print("Stopped early", line=0)
lcd_update_scores()
print("[+] Timer stopped early.")
else:
print("[!] There is no running timer to stop.")
elif cmd == "t1":
add_score(1)
print(f"Team 1: {score_t1}, Team 2: {score_t2}")
elif cmd == "t2":
add_score(2)
print(f"Team 1: {score_t1}, Team 2: {score_t2}")
elif cmd == "reset":
reset_scores()
print("Scores reset.")
else:
print(f"[!] Unknown command: {cmd}")
if __name__ == "__main__":
main()
while True:
update_lcd()
time.sleep(0.5)
except KeyboardInterrupt:
GPIO.cleanup()
lcd.clear()