LCD Screen is a much more effective way to communicate the current status with a user, compare to beeping sound or flashing lights.
Other than power and ground, it only requires 2 wiring via the I2C interface for data communication.
Find LCD Screen on eBay >>
Enable I2C via Raspberry Pi Configuration.
Restart Raspberry Pi.
Get LCD driver for Python.
sudo wget -P /usr/local/lib/python3.7/dist-packages/ https://gist.githubusercontent.com/IdrisCytron/6cde591d59dc14eb4149dc38f63d9bdd/raw/8e5991ab42556780be9e6a6c6ee1f417ca1302c3/I2C_LCD_driver.pyTest in Python environment.
Python3Import the LCD library.
import I2C_LCD_driverExit Python environment.
quit()OTHER TUTORIALS
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