adding_displayio_example

docs/examples.rst

@@ -4,3 +4,39 @@ Demo
 .. literalinclude:: ../examples/pcf8523_simpletest.py
     :caption: examples/pcf8523_simpletest.py
     :linenos:
+
+Square wave generation
+-----------------------
+
+Simple demo for clockout-mode (square-wave generation)
+
+.. literalinclude:: ../examples/pcf8523_clockout.py
+    :caption: examples/pcf8523_clockout.py
+    :linenos:
+
+Timer Flag Operation
+-----------------------
+
+Simple demo for timer operation using the timer-flag
+
+.. literalinclude:: ../examples/pcf8523_timer_flag.py
+    :caption: examples/pcf8523_timer_flag.py
+    :linenos:
+
+Timer Interrupt
+-----------------------
+
+Simple demo for timer operation, using the interrupt-pin
+
+.. literalinclude:: ../examples/pcf8523_timer_interrupt.py
+    :caption: examples/pcf8523_timer_interrupt.py
+    :linenos:
+
+DisplayIO Simpletest
+---------------------
+
+This is a simple test for boards with built-in display.
+
+.. literalinclude:: ../examples/pcf8523_displayio_simpletest.py
+    :caption: examples/pcf8523_displayio_simpletest.py
+    :linenos:

examples/pcf8523_displayio_simpletest.py

@@ -0,0 +1,64 @@
+# SPDX-FileCopyrightText: 2024 Tim Cocks for Adafruit Industries
+# SPDX-FileCopyrightText: 2024 Jose D. Montoya
+#
+# SPDX-License-Identifier: MIT
+
+# Simple demo of the PCF8523 real-time clock using a built-in display.
+import time
+import board
+from adafruit_display_text.bitmap_label import Label
+from terminalio import FONT
+from displayio import Group
+from adafruit_pcf8523.pcf8523 import PCF8523
+
+
+# create a main_group to hold anything we want to show on the display.
+main_group = Group()
+# Initialize I2C bus and sensor.
+i2c = board.I2C()  # uses board.SCL and board.SDA
+rtc = PCF8523(i2c)
+
+# Lookup table for names of days (nicer printing).
+days = (
+    "Monday",
+    "Tuesday",
+    "Wednesday",
+    "Thursday",
+    "Friday",
+    "Saturday",
+    "Sunday",
+)
+
+# Set the time
+t = time.struct_time((2024, 12, 12, 10, 31, 0, 0, -1, -1))
+rtc.datetime = t
+print("Setting time to:", t)
+
+# Create two Labels to show the readings. If you have a very small
+# display you may need to change to scale=1.
+date_output_label = Label(FONT, text="", scale=2)
+time_output_label = Label(FONT, text="", scale=2)
+
+# place the label in the middle of the screen with anchored positioning
+date_output_label.anchor_point = (0, 0)
+date_output_label.anchored_position = (4, board.DISPLAY.height // 2)
+time_output_label.anchor_point = (0, 0)
+time_output_label.anchored_position = (4, 20 + board.DISPLAY.height // 2)
+
+# add the label to the main_group
+main_group.append(date_output_label)
+main_group.append(time_output_label)
+
+# set the main_group as the root_group of the built-in DISPLAY
+board.DISPLAY.root_group = main_group
+
+# begin main loop
+while True:
+    # Update the label.text property to change the text on the display
+    t = rtc.datetime
+    date_output_label.text = (
+        f"The date is {days[int(t.tm_wday)]} {t.tm_mday}/{t.tm_mon}/{t.tm_year}"
+    )
+    time_output_label.text = f"The time is {t.tm_hour}:{t.tm_min:02}:{t.tm_sec:02}"
+    # wait for a bit
+    time.sleep(1)