diff --git a/docs/examples.rst b/docs/examples.rst index 6fa9acc..234ab1b 100644 --- a/docs/examples.rst +++ b/docs/examples.rst @@ -6,3 +6,12 @@ Ensure your device works with this simple test. .. literalinclude:: ../examples/bmp3xx_simpletest.py :caption: examples/bmp3xx_simpletest.py :linenos: + +DisplayIO Simpletest +--------------------- + +This is a simple test for boards with built-in display. + +.. literalinclude:: ../examples/bmp3xx_displayio_simpletest.py + :caption: examples/bmp3xx_displayio_simpletest.py + :linenos: diff --git a/examples/bmp3xx_displayio_simpletest.py b/examples/bmp3xx_displayio_simpletest.py new file mode 100644 index 0000000..469d12e --- /dev/null +++ b/examples/bmp3xx_displayio_simpletest.py @@ -0,0 +1,45 @@ +# SPDX-FileCopyrightText: 2024 Tim Cocks for Adafruit Industries +# SPDX-FileCopyrightText: 2024 Jose D. Montoya +# +# SPDX-License-Identifier: MIT + +# Simple demo of the BMP3XX pressure sensor 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 +import adafruit_bmp3xx + + +# 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 +bmp = adafruit_bmp3xx.BMP3XX_I2C(i2c) + +bmp.pressure_oversampling = 8 +bmp.temperature_oversampling = 2 + +# Create a Label to show the readings. If you have a very small +# display you may need to change to scale=1. +display_output_label = Label(FONT, text="", scale=2) + +# place the label in the middle of the screen with anchored positioning +display_output_label.anchor_point = (0, 0) +display_output_label.anchored_position = (4, board.DISPLAY.height // 2) + +# add the label to the main_group +main_group.append(display_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 + display_output_label.text = ( + f"Pressure: {bmp.pressure:6.4f} Temperature: {bmp.temperature:5.2f}" + ) + # wait for a bit + time.sleep(1)