Amount of PSRAM required for 480x272 16bit-RGB LCD interface using ESP32-S3.

Ali_Makhlouf
Posts: 8
Joined: Mon Dec 13, 2021 3:49 pm

Amount of PSRAM required for 480x272 16bit-RGB LCD interface using ESP32-S3.

Postby Ali_Makhlouf » Wed Mar 02, 2022 8:21 am

I am making a project of LCD interface using 480x272, 16bit-RGB LCD + LVGL library + RGB peripheral inside ESP32-S3

from my calculations:
1- 480x272= 130.56 KB --> x2 (because of 16bit-RGB) = 261.120 KB

So from this calculations I can choose a 2MB PSRAM ESP32-S3.

Is this calculations correct or do I need the other PSRAM option (esp32-S3 with 8 MB).

Also if there are any applications using RGB peripheral for esp32-S3 or ESP32-S2 please refer it to me.

Thank you

ESP_Sprite
Posts: 9761
Joined: Thu Nov 26, 2015 4:08 am

Re: Amount of PSRAM required for 480x272 16bit-RGB LCD interface using ESP32-S3.

Postby ESP_Sprite » Wed Mar 02, 2022 9:25 am

That is roughly correct, yes. To be honest, I'd develop the app on an 8MByte PSRAM first, then see if I can scale down to 2MiB for the production version. It's always nice to have a bit more room while developing.

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