Add displayio example

examples/sht4x_displayio_simpletest.py

@@ -0,0 +1,53 @@
+# SPDX-FileCopyrightText: 2024
+# SPDX-License-Identifier: MIT
+
+import time
+import board
+from adafruit_display_text.bitmap_label import Label
+from displayio import Group
+from terminalio import FONT
+
+import adafruit_sht4x
+
+# Create sensor object, communicating over the board's default I2C bus
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector
+sht = adafruit_sht4x.SHT4x(i2c)
+
+print("Found SHT4x with serial number", hex(sht.serial_number))
+
+sht.mode = adafruit_sht4x.Mode.NOHEAT_HIGHPRECISION
+# Can also set the mode to enable heater
+# sht.mode = adafruit_sht4x.Mode.LOWHEAT_100MS
+# print("Current mode is: ", adafruit_sht4x.Mode.string[sht.mode])
+
+
+# Example written for boards with built-in displays
+display = board.DISPLAY
+
+# Create a main_group to hold anything we want to show on the display.
+main_group = Group()
+
+# 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 near the top left corner with anchored positioning
+display_output_label.anchor_point = (0, 0)
+display_output_label.anchored_position = (4, 4)
+
+# Add the label to the main_group
+main_group.append(display_output_label)
+
+# Set the main_group as the root_group of the display
+display.root_group = main_group
+
+# Begin main loop
+while True:
+    temperature, relative_humidity = sht.measurements
+    # Update the label.text property to change the text on the display
+    display_output_label.text = (
+        f"Temperature: {temperature:.1f} C \nHumidity: {relative_humidity:.1f} %"
+    )
+    # Wait for a bit
+    time.sleep(1)