That looks pretty good. the largest ILI9488 I could find a while back was 3.2 inch. I use heaps of them and the driver and resolution are the same so this should be fine.
Let us know how you go.
You can also make sensors from different boards appear on the screen without or with Home assistant.
I will keep you up-to-date! 
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Thank you, interesting, I will read your info about it!
I have received the display and the esp32.
I will now have to experiment.
To be honest, besides of the small oled display, I am a newbie with tft screens.
If I search the internet I found a lot of posts about it, but for the moment I did not find a clear tutorial about the connection between the display and the esp32. There are about 13 pins or so on this display, but I have to find out the function of each, which ones I really need and how to implement in esphome.
If one of you have a good tutorial, I would be interested!
Maybe I must try first without esphome, and with Arduino ide?
The pins are described in the product’s description in your Aliexpress link in case you missed it, with picture (assuming it’s right…).
You might want to take a look at this post.
I thought I should mention the One-Wire bus, which also allows you to use multiple sensors on the same pin: ESPHome dallas. The DS18B20 allows for distant readings; you can find versions up to 10m (33ft) on Aliexpress, though I personally only used ones up to 3m (10ft). Works great in a greenhouse for example to measure outside/inside/soil temperatures from a single ESPHome device; low cost.
At the least, post a photo of the board clearly showing the labelled pins. They are relatively easy to hook up but sometimes the pin abbreviations need a bit of guesswork.
NOTE: I assume you have a WROVER ESP32 with extra PSRAM? A WROOM chip will not have enough memory.
I am also assuming you got a touchscreen variant and it’s an XPT2046 touchscreen - the purchase page specs don’t say. You may also get “strapping pin” warnings - ignore them.
spi:
clk_pin: GPIO18
mosi_pin: GPIO23
miso_pin: GPIO19
output:
- platform: ledc
pin: 32
id: backlight_pwm
# define as light
light:
- platform: monochromatic
output: backlight_pwm
name: "Backlight"
id: back_light
restore_mode: ALWAYS_ON
touchscreen:
platform: xpt2046
id: touchscreen1
cs_pin: 21
interrupt_pin: 27
update_interval: 50ms
report_interval: 1s
threshold: 350
calibration_x_min: 280
calibration_x_max: 3806
calibration_y_min: 185
calibration_y_max: 3884
swap_x_y: false
binary_sensor:
# Screen is one big button, read touchscreen docs if you want to divide up
- platform: touchscreen
id: touch_key0
x_min: 0
x_max: 240
y_min: 0
y_max: 320
on_press:
then:
# actions to do on touch.
display:
- platform: ili9xxx
model: ili9488
id: my_display
rotation: 180 # put whatever rotation you need for your application
dc_pin: GPIO22
cs_pin: GPIO15
reset_pin: GPIO16
# Display pages and code goes here
Good luck.
Hi Daryl,
Thank you for your clear explanation!
I do have the touchscreen variant.
Unfortunatelly I was trying it with a WOOM esp32…
I have another board lying around and I have ordered one. Is one of those usable (As I see, they both do have PSRAM?)
I have two of these (same board, different webshop?):
S2 Mini w/PSRAM
On the website they point to this instructions:
S2 Mini manual
Do those boards have anough functionality and capacity?
I do miss some of the pun numbers, but they are different on these boards?
When I look at This scheme, which pin numbers do I need?
It seems in every scheme the names/numbers of the pins are different…I tried it, but please can you take a look with me?
1 VCC power input (3.3V~5V) ------------------------------------------ 3V3
2 GND power supply ground ------------------------------------------- GND
3 CS LCD film selection ------------------------------------------------- GPIO 10 or 34
4 RESET LCD reset ------------------------------------------------------ GPIO ?
5 DC LCD bus command/data selection ----------------------------- GPIO ?
6 SDI (MoSi) LCD SPI display bus data input ---------------------- GPIO 11 or 35*
7 SCK LCD SPI display bus clock signal ---------------------------- GPIO 12 or 36 *
8 LED LCD backlight control (high level lighting) ------------------ GPIO ?
9 SDO (MISO) LCD SPI display bus data input and output ----- N/A (37)
10 t _ clk SPI bus clock signal of touch panel ----------------------- GPIO 12 or 36 *
11 t _ cs touch panel - Chip selection of SPI bus for -------------- GPIO 10 or 34
12 t _ din touch panel SPI bus data input ---------------------------- GPIO11 or 35 *
13 t _ do touch panel SPI bus data output --------------------------- GPIO ?
14 t _ IRQ touch panel interrupts IRQ signal ------------------------ GPIO ?
I have found also this scheme
Try it and see. Pins are different on S2 so some that you shouldn’t use on an ESP32 are fine. You are not likely to break anything.
Just ignore touch to start with, get the display working then add the touch components.
Tnx! I will give it a try and let you know!
I do like experimenting, but was a bit confused with the different names and pin desciptions and of course it is good to know that it is not likely that something will be broken.
@zoogara
YES!!
Finally I did succeed with your help!
I have used an esp32 S2 mini with the pin last numbers you have given.
First I had a problem that I was not able to do the initial flash on the S2 mini but it turns out, esphome has problems with flashing this board.
Now I did the first flashing with:
Adafruit esp tool
I am so happy! Tnx!
Now I have to try touchscreen and than I can start designing my display layout!
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Next challenge is to get the touchscreen working.
At the moment it does not work… I think…
Should I be able to see in the log when the touchscreen has been triggered?
Have a read in the touchscreen component about calibration. There is an example of printing the raw data - which can be handy for testing:
touchscreen:
platform: xpt2046
id: my_touchscreen
cs_pin: 17
on_touch:
- lambda: |-
ESP_LOGI("cal", "x=%d, y=%d, x_raw=%d, y_raw=%0d",
id(my_touchscreen).x,
id(my_touchscreen).y,
id(my_touchscreen).x_raw,
id(my_touchscreen).y_raw
);
Also - I couldn’t find anywhere in the page for the display mention of what touchscreen controller is in use. It may be a different one…
Oh, sorry, I did not mention! The touchscreen chip on the display board shows “xpt2046” so that should be alright!
I did see the page about xpt2046 calibration, but have to look how I get this test to work.
I will let you know!
A question - did the display come with a little plastic pen? If it didn’t it may be a capacitive touch display…
EDIT - already answered 
You could also try:
- a different pin for touch CS
- connecting the display MISO to the touch MISO - there was some weird note about LCD MISO in the reviews
To be sure, do I read the calibration values in the log of the esphome instance:
I could also try your other suggestions.
You mean I can connect the unconnected SDO (MISO) to the display MISO pin 37 (so both are using the same pin 37?)
Yes
As a last resort. None of my displays have needed it.