Merge pull request adafruit#1133 from andydoro/master

creating new AHT20 OLED learn guide

Author: ladyada

AHT20_OLED/README.md

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+# AHT20_OLED

AHT20_OLED/code.py

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+""" Example for using the AHT20 and OLED with CircuitPython and the Adafruit library"""
+
+import time
+import board
+import busio
+import adafruit_ahtx0
+
+# OLED
+import displayio
+import terminalio
+from adafruit_display_text import label
+import adafruit_displayio_ssd1306
+
+displayio.release_displays()
+
+i2c = busio.I2C(board.SCL, board.SDA, frequency=100000)
+
+# Create library object using our Bus I2C port
+#i2c = busio.I2C(board.SCL, board.SDA)
+aht20 = adafruit_ahtx0.AHTx0(i2c)
+
+
+#OLED
+display_bus = displayio.I2CDisplay(i2c, device_address=0x3C)
+display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=128, height=32)
+
+# Make the display context
+splash = displayio.Group(max_size=8)
+display.show(splash)
+
+text = "hello world"
+text_area = label.Label(terminalio.FONT, color=0xFFFF00, x=15, y=0, max_glyphs=200)
+splash.append(text_area)
+
+while True:
+    text_area.text = "temp: %0.1fC \nhumid: %0.1f%%" % (aht20.temperature, aht20.relative_humidity)
+    print(text_area.text)
+    time.sleep(1)