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Using a Round ST7701 RGB screen with the Ultra W

Posted: 2025-02-20 12:19
by bobinou
Hello, i have a Pico Ultra W and i have a round TFT RGB Screen 480x480 with a 40 Pin connection (link below).
I thought it might be possible to connect the screen to my Pico (using ubuntu).
Unfortunately i am a total newbie and have no idea what steps i need to take to get images displayed.
Can anyone help me with that?
Thanks :)

https://de.aliexpress.com/item/10050074 ... pt=glo2deu

Re: Using a Round ST7701 RGB screen with the Ultra W

Posted: 2025-02-20 13:01
by Crocodile
Hello, you need to make sure that the pins of the use screen and the pin definition of the luckfox Pico Ultra match first, otherwise you may burn out the hardware due to a short circuit. The pin definition of the Luckfox Pico Ultra can refer to https://files.luckfox.com/wiki/Luckfox- ... ra%20W.pdf, if the pins do not match, you can only consider making an adapter board
In the software, you need to make sure that you have the complete data of the screen, including the initialization sequence and timings of the power-up, without which the parameters will not drive the screen