Simple test

Ensure your device works with this simple test.

examples/displayio_sh1107_simpletest.py
 1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 2#
 3# SPDX-License-Identifier: Unlicense
 4"""
 5Author: Mark Roberts (mdroberts1243) from Adafruit code
 6This test will initialize the display using displayio and draw a solid white
 7background, a smaller black rectangle, miscellaneous stuff and some white text.
 8
 9"""
10
11import board
12import displayio
13import terminalio
14
15# can try import bitmap_label below for alternative
16from adafruit_display_text import label
17from i2cdisplaybus import I2CDisplayBus
18
19import adafruit_displayio_sh1107
20
21displayio.release_displays()
22# oled_reset = board.D9
23
24# Use for I2C
25i2c = board.I2C()  # uses board.SCL and board.SDA
26# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
27display_bus = I2CDisplayBus(i2c, device_address=0x3C)
28
29# SH1107 is vertically oriented 64x128
30WIDTH = 128
31HEIGHT = 64
32BORDER = 2
33
34display = adafruit_displayio_sh1107.SH1107(display_bus, width=WIDTH, height=HEIGHT)
35
36# Make the display context
37splash = displayio.Group()
38display.root_group = splash
39
40color_bitmap = displayio.Bitmap(WIDTH, HEIGHT, 1)
41color_palette = displayio.Palette(1)
42color_palette[0] = 0xFFFFFF  # White
43
44bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
45splash.append(bg_sprite)
46
47# Draw a smaller inner rectangle in black
48inner_bitmap = displayio.Bitmap(WIDTH - BORDER * 2, HEIGHT - BORDER * 2, 1)
49inner_palette = displayio.Palette(1)
50inner_palette[0] = 0x000000  # Black
51inner_sprite = displayio.TileGrid(inner_bitmap, pixel_shader=inner_palette, x=BORDER, y=BORDER)
52splash.append(inner_sprite)
53
54# Draw some white squares
55sm_bitmap = displayio.Bitmap(8, 8, 1)
56sm_square = displayio.TileGrid(sm_bitmap, pixel_shader=color_palette, x=58, y=17)
57splash.append(sm_square)
58
59med_bitmap = displayio.Bitmap(16, 16, 1)
60med_square = displayio.TileGrid(med_bitmap, pixel_shader=color_palette, x=71, y=15)
61splash.append(med_square)
62
63lrg_bitmap = displayio.Bitmap(32, 32, 1)
64lrg_square = displayio.TileGrid(lrg_bitmap, pixel_shader=color_palette, x=91, y=28)
65splash.append(lrg_square)
66
67# Draw some label text
68text1 = "0123456789ABCDEF123456789AB"  # overly long to see where it clips
69text_area = label.Label(terminalio.FONT, text=text1, color=0xFFFFFF, x=8, y=8)
70splash.append(text_area)
71text2 = "SH1107"
72text_area2 = label.Label(terminalio.FONT, text=text2, scale=2, color=0xFFFFFF, x=9, y=44)
73splash.append(text_area2)
74
75while True:
76    pass