LCD Monitor

This is a fully functional LCD monitor for Hitachi HD44780 controller, written in Python 3.

Every LCD packet sent via serial conforms to the following format:

Byte	Value	Description
0	0xFE	Magic number
1	0xBF	Magic number
2	0b1111_0[RS, RW, E]	RS/RW/E pins
3	0b[D7...D1]	Data pins

If you're interfacing with a plaintext serial monitor and you encounter a message starting with FE BF, it's best to ignore the next two bytes that follow it.

Requirements

• Tkinter
• pyserial

Setup

• Connect your Arduino.
• Compile against the modified LiquidCrystal library instead of the vanilla one.
• Edit serialport in main.py to the match the Arduino's serial port.
• Invoke python main.py.
• The Arduino will automatically restart, and the LCD output will appear.

To do

• Command-line arguments
• Safer multithreading
• Make it flicker less
• Built-in general serial monitor
• Change the magic numbers to standard ASCII control characters