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ST7789 gLCD and Arduino nano- Slow Display response
Posted: Thu Sep 25, 2025 11:25 am
by ifrdbcsirbd
I am trying to use ST7789 1.3 inch LCD with Arduino nano with Flowcode 9. The written code changes background color in every second. But in practical the color changes very slowly from top to bottom (Slow motion), not instant. How can I set to change display instant? please help some one.
Re: ST7789 gLCD and Arduino nano- Slow Display response
Posted: Thu Sep 25, 2025 11:55 am
by medelec35
Hello.
Within the display properties, try changing your prescaler to Fosc/4
It still might not be instant but the speed is tied up with the microcontroller running speed.
Re: ST7789 gLCD and Arduino nano- Slow Display response
Posted: Sun Sep 28, 2025 3:39 am
by ifrdbcsirbd
Hello medelec35 ,
Thanks for your quick response. Unfortunately I am not finding any option for changing prescaler in the display property.
Re: ST7789 gLCD and Arduino nano- Slow Display response
Posted: Sun Sep 28, 2025 4:15 am
by chipfryer27
Hi
If you go to properties on the display, scroll down you will see option for scaling.
- Screenshot 2025-09-28 041404.jpg (100.15 KiB) Viewed 2821 times
Regards
Re: ST7789 gLCD and Arduino nano- Slow Display response
Posted: Sun Sep 28, 2025 9:36 am
by ifrdbcsirbd
In the V9 there is no SPI property of ST7789.
Re: ST7789 gLCD and Arduino nano- Slow Display response
Posted: Sun Sep 28, 2025 11:32 am
by chipfryer27
Hi
Sorry, I overlooked that you were using v9. Unfortunately I don't have v9 on this laptop.
Regards