LCD1602 with Raspberry Pi 5 - Is there a scrolling marquee function?

Learning kit for Raspberry Pi
1

Hello all,

I am very new to all of this. It’s been great fun so far. I have a Raspberry Pi 5 and the SunFounder Raphael kit. I am curious if there is a scrolling marquee function for the LCD1502 as on beginning to learn about it, I though it could be a fun addition to my long term automation project for my bedroom. If any of you know how this might be done, I would really appreciate the info.

Also, I would like to do some of the development from my user folder so that I can integrate some actions from GPIOzero into the final project, but I don’t know how to point Python in the right direction to bring GPIOzero and the Raphael kit together.

Again, any information would be very helpful and greatly appreciated.

2

You can try writing your own scrolling display code. Here’s an idea:

def circular_scroll(messages, delay=0.3):
    """
    Circularly scroll through multiple messages
    messages: list of messages, e.g., ["Temperature: 22C", "Motion detected", "Good night"]
    """
    while True:  # Infinite loop, you can use a variable to control stopping
        for msg in messages:
            # Clear screen
            clear()
            # Display message (if length <= 16 characters, show statically)
            if len(msg) <= 16:
                write(0, 0, msg)
                time.sleep(2)  # Static display for 2 seconds
            else:
                # Scroll long messages
                scroll_text_simple(msg, row=0, delay=delay, steps=len(msg) + 16)
            time.sleep(0.5)

# Usage example - your bedroom automation messages
messages = [
    "Welcome to bedroom!", 
    "Current time: 22:30",
    "Motion detected at door",
    "Good night, sleep well!"
]
circular_scroll(messages)

Additionally, the Raphael Kit does work with GPIO Zero. You can learn more here: