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Content import buttons import display import leds import os import ujson import utime import vibra CONFIG_NAME = 'tea-timer.json' DEFAULT_TIMER_SECONDS = 240 def load_config(): global timer_seconds if CONFIG_NAME in os.listdir('.'): f = open(CONFIG_NAME, 'r') config = ujson.loads(f.read()) f.close() timer_seconds = config.get('timer_seconds', DEFAULT_TIMER_SECONDS) def save_config(): config = {'timer_seconds': timer_seconds} f = open(CONFIG_NAME, 'w') f.write(ujson.dumps(config)) f.close() def headline(): disp.print('Tea Timer', posy=0, fg=[255, 215, 0]) def timeline(seconds): mn = seconds // 60 sc = seconds % 60 message = '{:02}:{:02}'.format(mn, sc) disp.print(message, posy=16, fg=[255, 255, 255]) def timeline_finished(): message = 'Finished!' disp.print(message, posy=16, fg=[255, 255, 255]) def reset(): global timer_state, pulse_ticks, leds_on timer_state = 0 pulse_ticks = 0 leds_on = False leds.clear() disp = display.open() timer_seconds = DEFAULT_TIMER_SECONDS timer_state = 0 # 0 = setup, 1 = running, 2 = finished start_time = 0 pulse_ticks = 0 leds_on = False load_config() while True: pressed = buttons.read( buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT | buttons.TOP_RIGHT) if pressed & buttons.BOTTOM_LEFT != 0: if timer_state == 0 and timer_seconds > 30: timer_seconds -= 30 save_config() elif timer_state == 2: reset() if pressed & buttons.BOTTOM_RIGHT != 0: if timer_state == 0 and timer_seconds < 600: timer_seconds += 30 save_config() elif timer_state == 2: reset() if pressed & buttons.TOP_RIGHT != 0: if timer_state == 0: start_time = utime.time() timer_state = 1 elif timer_state == 2: reset() disp.clear() headline() if timer_state == 0: timeline(timer_seconds) if timer_state == 1: seconds = timer_seconds - (utime.time() - start_time) timeline(seconds) if seconds == 0: timer_state = 2 if timer_state == 2: timeline_finished() if pulse_ticks == 0: if leds_on: leds.clear() else: leds.gay(0.4) vibra.vibrate(200) leds_on = not leds_on pulse_ticks = 5 else: pulse_ticks -= 1 disp.update() utime.sleep_ms(100)