Merge pull request #2730 from adafruit/rtc_clock

adding clock code

Digital_Clock_with_CircuitPython/code.py

@@ -0,0 +1,143 @@
+# SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+import time
+import board
+import simpleio
+import adafruit_ds3231
+from adafruit_ticks import ticks_ms, ticks_add, ticks_diff
+from adafruit_ht16k33 import segments
+from adafruit_debouncer import Button
+from adafruit_seesaw import seesaw, rotaryio, digitalio
+
+# min and max display brightness range
+# value must be 0.0 to 1.0
+max_brightness = 1
+min_brightness = 0.01
+# weekday hours to have clock on max brightness
+# (24-hour time)
+weekday_wakeup = 8
+weekday_sleep = 21
+# weekend hours to have clock on max brightness
+# (24-hour time)
+weekend_wakeup = 9
+weekend_sleep = 23
+
+i2c = board.STEMMA_I2C()
+
+rtc = adafruit_ds3231.DS3231(i2c)
+seesaw = seesaw.Seesaw(i2c, addr=0x36)
+seesaw.pin_mode(24, seesaw.INPUT_PULLUP)
+ss_pin = digitalio.DigitalIO(seesaw, 24)
+button = Button(ss_pin, long_duration_ms=1000)
+
+encoder = rotaryio.IncrementalEncoder(seesaw)
+last_position = 0
+
+# pylint: disable-msg=using-constant-test
+if False:  # change to True if you want to set the time!
+    #                     year, mon, date, hour, min, sec, wday, yday, isdst
+    t = time.struct_time((2024, 1, 25, 15, 7, 0, 3, -1, -1))
+    # you must set year, mon, date, hour, min, sec and weekday
+    # yearday is not supported, isdst can be set but we don't do anything with it at this time
+    print("Setting time to:", t)  # uncomment for debugging
+    rtc.datetime = t
+    print()
+# pylint: enable-msg=using-constant-test
+
+display = segments.BigSeg7x4(i2c)
+
+display.fill(0)
+display.brightness = max_brightness
+
+display.colon = True
+
+def clock_conversion(h, m, set_brightness):
+    # pylint: disable-msg=simplifiable-if-expression
+    am_pm = False if h < 12 else True
+    hour_12 = h if h <= 12 else h - 12
+    if hour_12 == 0:
+        hour_12 = 12
+    display.print(f"{(hour_12):02}:{m:02}")
+    display.ampm = am_pm
+    if set_brightness:
+        if awake_hours[0] <= h <= awake_hours[1] - 1:
+            display.brightness = max_brightness
+        elif h is awake_hours[0] - 1:
+            bright = simpleio.map_range(m, 0, 59, min_brightness, max_brightness)
+            display.brightness = bright
+        elif h is awake_hours[1]:
+            bright = simpleio.map_range(m, 0, 59, max_brightness, min_brightness)
+            display.brightness = bright
+        else:
+            display.brightness = min_brightness
+    else:
+        display.brightness = max_brightness
+
+clock_clock = ticks_ms()
+clock_timer = 1 * 1000
+clock_mode = True
+set_hour = True
+power_up = True
+hour = 0
+minute = 0
+
+while True:
+
+    if clock_mode:
+        button.update()
+        if ticks_diff(ticks_ms(), clock_clock) >= clock_timer:
+            t = rtc.datetime
+            if t.tm_wday in range(5, 6):
+                awake_hours = [weekend_wakeup, weekend_sleep]
+            else:
+                awake_hours = [weekday_wakeup, weekday_sleep]
+            if t.tm_sec < 1 or power_up:
+                power_up = False
+                clock_conversion(t.tm_hour, t.tm_min, True)
+            clock_clock = ticks_add(clock_clock, clock_timer)
+    else:
+        button.update()
+        position = -encoder.position
+        if position != last_position:
+            if position > last_position:
+                if set_hour:
+                    hour = (hour + 1) % 24
+                else:
+                    minute = (minute + 1) % 60
+            else:
+                if set_hour:
+                    hour = (hour - 1) % 24
+                else:
+                    minute = (minute - 1) % 60
+            clock_conversion(hour, minute, False)
+            last_position = position
+        if button.short_count:
+            set_hour = not set_hour
+        # toggling dots with not did not seem to work consistantly
+        # so setting manually
+        if set_hour:
+            display.top_left_dot = True
+            display.bottom_left_dot = False
+        else:
+            display.top_left_dot = False
+            display.bottom_left_dot = True
+    if button.long_press:
+        if not clock_mode:
+            t = rtc.datetime
+            new_t = time.struct_time((t.tm_year, t.tm_mon, t.tm_mday,
+                                      hour, minute, t.tm_sec, t.tm_wday,
+                                      t.tm_yday, t.tm_isdst))
+            print("Setting time to:", new_t)
+            rtc.datetime = new_t
+            clock_clock = ticks_add(clock_clock, clock_timer)
+            power_up = True
+            display.top_left_dot = False
+            display.bottom_left_dot = False
+        else:
+            set_hour = True
+            t = rtc.datetime
+            hour = t.tm_hour
+            minute = t.tm_min
+        clock_mode = not clock_mode
+        display.blink_rate = not display.blink_rate