add missing import microcontroller

dhalbert · dhalbert · commit 19161e46af63 · 2021-03-05T07:21:49.000-05:00
diff --git a/lcd/i2c_pcf8574_interface.py b/lcd/i2c_pcf8574_interface.py
@@ -22,6 +22,7 @@
 
 import busio
 import board
+import microcontroller
 from adafruit_bus_device.i2c_device import I2CDevice
 
 from .lcd import LCD_4BITMODE, LCD_BACKLIGHT, LCD_NOBACKLIGHT, PIN_ENABLE
