Comments on: ESP32: TFT Touchscreen On/Off Button – 2.8 inch ILI9341 240×320 (Arduino IDE) https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Wed, 19 Mar 2025 15:13:59 +0000 hourly 1 https://wordpress.org/?v=6.8.2 By: Sara Santos https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-1017982 Wed, 19 Mar 2025 15:13:59 +0000 https://randomnerdtutorials.com/?p=151439#comment-1017982 In reply to EzioGi.

Hi.
I have an ESP32 DOIT V1 board.
Regards,
Sara

]]> By: EzioGi https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-1017710 Tue, 18 Mar 2025 15:37:35 +0000 https://randomnerdtutorials.com/?p=151439#comment-1017710 Hi Rui,
which ESP32 do you use in the sketch you documented here.
I cannot find an ESP32 with the GPIOs highlighted below:
T_IRQ GPIO 36
T_OUT GPIO 39
I have an ESP32-VROOM-32 which maxes out at GPIO35.
Thank you
EzioGi

]]> By: Andrei https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-1002352 Fri, 24 Jan 2025 09:13:17 +0000 https://randomnerdtutorials.com/?p=151439#comment-1002352 In reply to Helmuth Helfmann.

I changed to DC to GPIO 4 and it works ok

]]> By: Helmuth Helfmann https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-912433 Sat, 04 May 2024 12:33:14 +0000 https://randomnerdtutorials.com/?p=151439#comment-912433 In reply to Rui Santos.

So wifi can’t be used?

]]> By: Sean https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-912366 Sat, 04 May 2024 04:54:07 +0000 https://randomnerdtutorials.com/?p=151439#comment-912366 Like Jan-Olof said…

I was just reading this (did not build it), but it seems like there needs to be a LED hooked up to some available pin (and a resistors to limit current) and pin 16 is already claimed for MOSI. Or maybe HSPI MOSI is supposed to be GPIO 13?

]]> By: Jan-Olof Edén https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-912079 Thu, 02 May 2024 20:04:06 +0000 https://randomnerdtutorials.com/?p=151439#comment-912079 I had problem shoving changes on/off. Untill I changed (LED_GREEN 16) to (LED_GREEN 4) .Now the code works OK.
/Jan-Olof

]]> By: Rui Santos https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-911369 Tue, 30 Apr 2024 17:28:30 +0000 https://randomnerdtutorials.com/?p=151439#comment-911369 In reply to W. Joe Taylor.

Thank you Joe! I’m glad you found them helpful. Unfortunately there’s not that much documentation, so I’ve decided to explore them a bit more.

]]> By: Rui Santos https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-911368 Tue, 30 Apr 2024 17:27:45 +0000 https://randomnerdtutorials.com/?p=151439#comment-911368 In reply to Helmuth Helfmann.

At the moment, I’ve decided to use the same pinout as the CYD board for easier compatibility with all my examples.
https://randomnerdtutorials.com/touchscreen-on-off-button-cheap-yellow-display-esp32-2432s028r/

]]> By: Helmuth Helfmann https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-909856 Fri, 26 Apr 2024 09:19:15 +0000 https://randomnerdtutorials.com/?p=151439#comment-909856 ADC2 pins cannot be used when Wi-Fi is used. Wouldn’t it be better, using ADC1 GPIO instead?

]]> By: W. Joe Taylor https://randomnerdtutorials.com/esp32-tft-touchscreen-on-off-button-ili9341-arduino/#comment-909675 Thu, 25 Apr 2024 14:11:00 +0000 https://randomnerdtutorials.com/?p=151439#comment-909675 Hi Rui,
I really enjoyed this tutorial and the similar one on CYD. I’ve had these displays and the CYD displays for a couple of years and never understood how to use them. Now you have fired up my interest in them again.
Thank you & Sarah for all your great tutorials & courses.
Best regards,
Joe

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