Comments on: ESP32 CYD: Use Display, Touchscreen and MicroSD Card Simultaneously https://randomnerdtutorials.com/esp32-cyd-display-touchscreen-microsd-card/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Mon, 11 May 2026 02:28:31 +0000 hourly 1 https://wordpress.org/?v=6.8.5 By: fxarax https://randomnerdtutorials.com/esp32-cyd-display-touchscreen-microsd-card/#comment-1186924 Mon, 11 May 2026 02:28:31 +0000 https://randomnerdtutorials.com/?p=190235#comment-1186924 I can suggest this different solution with standard libraries: “https://github.com/ropg/LVGL_CYD/issues/3”.
See the last comment.

]]> By: Jay https://randomnerdtutorials.com/esp32-cyd-display-touchscreen-microsd-card/#comment-1174175 Mon, 30 Mar 2026 10:50:01 +0000 https://randomnerdtutorials.com/?p=190235#comment-1174175 Share spi screen and SD card and put touch on its own spi. That’s what I did and everything works fine with standard libraries

]]> By: Paulo Robalo https://randomnerdtutorials.com/esp32-cyd-display-touchscreen-microsd-card/#comment-1173022 Thu, 26 Mar 2026 17:35:50 +0000 https://randomnerdtutorials.com/?p=190235#comment-1173022 Hello,
this is all very good and educational stuff, but the really fun part of these devices (at least for me) has always been the capability of controlling INPUTS and OUTPUTS. And in this department, the ESP32-CYD doesn’t shine. The number of I/Os is very limited, perhaps insufficient for any practical project needing to control relays, sensors, etc. For simple GUI and WiFi/Bluetooth communications, this is a pretty good module.
Do you know a practical way of adding more I/Os, perhaps using an I/O expander (I’ve used three MCP23008 in a recent project involving an ESP32-S3) ? or do you know a better way?
It would be very interesting to deepen this subject and create some projects using more I/Os – if possible or feasible, we always have ESP32 modules with more I/Os, but no included LCD. Just a suggestion.

Thanks and keep up the good work!

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