split dht sensor, add oled impl, add button triggered display example

examples/oled_display_example.py

@@ -0,0 +1,84 @@
+"""
+Example usage of the OLED display with temperature and humidity sensors.
+"""
+import time
+import sys
+import os
+
+# Add the src directory to the Python path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+from src.esp_sensors.oled_display import OLEDDisplay
+from src.esp_sensors.dht22 import DHT22Sensor
+
+
+def main():
+    """
+    Main function to demonstrate OLED display usage with sensors.
+    """
+    # Initialize a DHT22 sensor
+    dht_sensor = DHT22Sensor(
+        name="Living Room",
+        pin=4,  # GPIO pin for DHT22 data
+        interval=5,  # Read every 5 seconds
+        unit="C"  # Celsius
+    )
+
+    # Initialize an OLED display
+    display = OLEDDisplay(
+        name="Status Display",
+        scl_pin=22,  # GPIO pin for I2C clock
+        sda_pin=21,  # GPIO pin for I2C data
+        width=128,   # Display width in pixels
+        height=64,   # Display height in pixels
+        interval=1   # Update every second
+    )
+
+    # Display initialization message
+    display.clear()
+    display.display_text("Initializing...", 0, 0)
+    time.sleep(2)
+
+    # Main loop - run for 5 iterations as a demonstration
+    try:
+        print("Starting demonstration (5 iterations)...")
+        for i in range(5):
+            print(f"\nIteration {i+1}/5:")
+
+            # Read sensor values
+            temperature = dht_sensor.read_temperature()
+            humidity = dht_sensor.read_humidity()
+
+            # Format values for display
+            temp_str = f"Temp: {temperature:.1f} C"
+            hum_str = f"Humidity: {humidity:.1f}%"
+            time_str = f"Time: {time.time():.0f}"
+            name_str = f"Sensor: {dht_sensor.name}"
+
+            # Display values
+            display.display_values([
+                name_str,
+                temp_str,
+                hum_str,
+                time_str,
+                f"Demo ({i+1}/5)"
+            ])
+
+            # Print to console in simulation mode
+            print(f"Updated display with: {temp_str}, {hum_str}")
+
+            # Wait for next update
+            print(f"Waiting {display.interval} second(s)...")
+            time.sleep(display.interval)
+
+    except KeyboardInterrupt:
+        # Clean up on exit
+        display.clear()
+        display.display_text("Shutting down...", 0, 0)
+        time.sleep(1)
+        display.clear()
+        print("Program terminated by user")
+
+
+if __name__ == "__main__":
+    main()