oled_rtc.py

# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: Unlicense
#Based on code by Author: Mark Roberts (mdroberts1243) from Adafruit code
#Adapted in July 2021 by Andrew Kleindolph

import board
import time
import displayio
import terminalio
import adafruit_ahtx0
import busio
import adafruit_pcf8523

# can try import bitmap_label below for alternative
from adafruit_display_text import label
import adafruit_displayio_sh1107

# Create sensor object, communicating over the board's default I2C bus
i2c = board.I2C()  # uses board.SCL and board.SDA
rtc = adafruit_pcf8523.PCF8523(i2c)

displayio.release_displays()
# oled_reset = board.D9

# Use for I2C
i2c = board.I2C()
display_bus = displayio.I2CDisplay(i2c, device_address=0x3C)

# SH1107 is vertically oriented 64x128
WIDTH = 128
HEIGHT = 64
BORDER = 2

days = ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday")

if False:   # change to True if you want to write the time!
    #                     year, mon, date, hour, min, sec, wday, yday, isdst
    t = time.struct_time((2021,  08,   02,   03,  09,  00,    1,   -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()

display = adafruit_displayio_sh1107.SH1107(display_bus, width=WIDTH, height=HEIGHT)

# Make the display context
splash = displayio.Group(max_size=10)
display.show(splash)

color_bitmap = displayio.Bitmap(WIDTH, HEIGHT, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0xFFFFFF  # White

bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
splash.append(bg_sprite)

# Draw a smaller inner rectangle in black
inner_bitmap = displayio.Bitmap(WIDTH - BORDER * 2, HEIGHT - BORDER * 2, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0x000000  # Black
inner_sprite = displayio.TileGrid(
    inner_bitmap, pixel_shader=inner_palette, x=BORDER, y=BORDER
)
splash.append(inner_sprite)



while True:
    t = rtc.datetime
    #print(t)     # uncomment for debugging

    print("The date is %s %d/%d/%d" % (days[t.tm_wday], t.tm_mday, t.tm_mon, t.tm_year))
    print("The time is %d:%02d:%02d" % (t.tm_hour, t.tm_min, t.tm_sec))
    
    
    text2 = str("%s %d/%d/%d" % (days[t.tm_wday], t.tm_mon, t.tm_mday, t.tm_year))
    text_area2 = label.Label(
    terminalio.FONT, text=text2, scale=1, color=0xFFFFFF, x=9, y=15
    )
    splash.append(text_area2)
    
    text2 = str("%d:%02d" % (t.tm_hour, t.tm_min))
    text_area2 = label.Label(
    terminalio.FONT, text=text2, scale=3, color=0xFFFFFF, x=15, y=37
    )
    splash.append(text_area2)
    
    display.show(splash)
    
    time.sleep(20) # wait a second

    splash.pop(-1)