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- PSRAM
- RGB panel COLOR16 swap
- Duty cycle float
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@rzeldent
rzeldent committed Dec 9, 2023
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60 changes: 36 additions & 24 deletions README.md
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Expand Up @@ -30,27 +30,27 @@ They can be bought in the [Sunton Store](https://www.aliexpress.com/store/110019

## Supported boards

| Type | CPU | Display | Size | Controller | Rotate support | Touch | Audio | Flash | RGB LED | CDS | Link|
|--- |--- |--- |-- |--- |--- |--- |--- |--- |--- |--- |--- |
| ESP32_1732S019N | ESP32-S3 | 170x320 | 1.9" | [ST7796](assets/datasheets/ST7796.pdf) | yes | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005059421229.html) |
| ESP32_1732S019C | ESP32-S3 | 170x320 | 1.9" | [ST7796](assets/datasheets/ST7796.pdf) | yes | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005059421229.html) |
| ESP32-2424S012N | ESP32-C3 | 240x240 | 1.2" | [GC9A01A](assets/datasheets/GC9A01A.pdf) | yes | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005453515690.html) |
| ESP32-2424S012C | ESP32-C3 | 240x240 | 1.2" | [GC9A01A](assets/datasheets/GC9A01A.pdf) | yes | [CST816S](assets/datasheets/CST816S.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005453515690.html) |
| ESP32-2432S024N | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | yes | n/a | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S024R | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S024C | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | yes | [CST816S](assets/datasheets/CST816S.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S028R | ESP32 | 240x320 | 2.8" | [ILI9341](assets/datasheets/ILI9341.pdf) | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004502250619.html) |
| ESP32-2432S032N | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | yes | n/a | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-2432S032R | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-2432S032C | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | yes | [GT911](assets/datasheets//GT911.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-3248S035R | ESP32 | 320x480 | 3.5" | [ST7796](assets/datasheets/ST7796.pdf) | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004632953455.html) |
| ESP32-3248S035C | ESP32 | 320x480 | 3.5" | [ST7796](assets/datasheets/ST7796.pdf) | yes | [GT911](assets/datasheets//GT911.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004632953455.html) |
| ESP32-4827S043R | ESP32-S3 | 480x272 | 4.3" | n/a | no | [XPT2046](assets/datasheets/XPT2046.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005006110360174.html) |
| ESP32-4827S043C | ESP32-S3 | 480x272 | 4.3" | n/a | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005006110360174.html) |
| ESP32-8048S050N | ESP32-S3 | 800x480 | 5.0" | n/a | no | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005938915207.html) |
| ESP32-8048S050C | ESP32-S3 | 800x480 | 5.0" | n/a | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005938915207.html) |
| ESP32-8048S070N | ESP32-S3 | 800x480 | 7.0" | n/a | no | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005928865239.html) |
| ESP32-8048S070C | ESP32-S3 | 800x480 | 7.0" | n/a | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005928865239.html) |
| Type | CPU | Display | Size | Controller | PSRAM | Rotate support | Touch | Audio | Flash | RGB LED | CDS | Link|
|--- |--- |--- |-- |--- | n/a |--- |--- |--- |--- |--- |--- |--- |
| ESP32_1732S019N | ESP32-S3 | 170x320 | 1.9" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005059421229.html) |
| ESP32_1732S019C | ESP32-S3 | 170x320 | 1.9" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005059421229.html) |
| ESP32-2424S012N | ESP32-C3 | 240x240 | 1.2" | [GC9A01A](assets/datasheets/GC9A01A.pdf) | n/a | yes | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005453515690.html) |
| ESP32-2424S012C | ESP32-C3 | 240x240 | 1.2" | [GC9A01A](assets/datasheets/GC9A01A.pdf) | n/a | yes | [CST816S](assets/datasheets/CST816S.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005453515690.html) |
| ESP32-2432S024N | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | n/a | yes | n/a | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S024R | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | n/a | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S024C | ESP32 | 240x320 | 2.4" | [ILI9341](assets/datasheets/ILI9341.pdf) | n/a | yes | [CST816S](assets/datasheets/CST816S.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005005865107357.html) |
| ESP32-2432S028R | ESP32 | 240x320 | 2.8" | [ILI9341](assets/datasheets/ILI9341.pdf) | n/a | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004502250619.html) |
| ESP32-2432S032N | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | n/a | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-2432S032R | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-2432S032C | ESP32 | 240x320 | 3.2" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | [GT911](assets/datasheets//GT911.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005006224494145.html) |
| ESP32-3248S035R | ESP32 | 320x480 | 3.5" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | [XPT2046](assets/datasheets/XPT2046.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004632953455.html) |
| ESP32-3248S035C | ESP32 | 320x480 | 3.5" | [ST7796](assets/datasheets/ST7796.pdf) | n/a | yes | [GT911](assets/datasheets//GT911.pdf) | yes | [W25Q32JV](assets/datasheets/25Q32JVSSIQ.pdf) | yes | yes | [Ali Express](https://www.aliexpress.com/item/1005004632953455.html) |
| ESP32-4827S043R | ESP32-S3 | 480x272 | 4.3" | Direct 16 bits parallel gpio | n/a | no | [XPT2046](assets/datasheets/XPT2046.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005006110360174.html) |
| ESP32-4827S043C | ESP32-S3 | 480x272 | 4.3" | Direct 16 bits parallel gpio | n/a | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005006110360174.html) |
| ESP32-8048S050N | ESP32-S3 | 800x480 | 5.0" | Direct 16 bits parallel gpio | 8Mb | no | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005938915207.html) |
| ESP32-8048S050C | ESP32-S3 | 800x480 | 5.0" | Direct 16 bits parallel gpio | 8Mb | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005938915207.html) |
| ESP32-8048S070N | ESP32-S3 | 800x480 | 7.0" | Direct 16 bits parallel gpio | 8Mb | no | n/a | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005928865239.html) |
| ESP32-8048S070C | ESP32-S3 | 800x480 | 7.0" | Direct 16 bits parallel gpio | 8Mb | no | [GT911](assets/datasheets//GT911.pdf) | no | no | no | no | [Ali Express](https://www.aliexpress.com/item/1005005928865239.html) |

Note: the additional flash chip (W25Q32JV) is not always mounted on the board.

Expand Down Expand Up @@ -149,6 +149,8 @@ build_flags =
board = esp32-s3-devkitc-1
build_flags =
${env.build_flags}
-D BOARD_HAS_PSRAM
-mfix-esp32-psram-cache-issue
# Smartdisplay selection
#-D ESP32_1732S019N
#-D ESP32_1732S019C
Expand Down Expand Up @@ -179,6 +181,16 @@ To include it globally, the define must be (for the include directory):

The template for the `lv_conf.h` file can be found in the LVGL library at `.pio/libdeps/esp32dev/lvgl/lv_conf_template.h`.

## PSRAM

At boot the ESP32 has approx 315Kb free memory. For displays wit a controller, no internal buffer to save the state of the display is required.
However, if the display is using the direct 16bits parallel connection, there is no controller and the contents of the RAM is copied to the display at a fast rate.
This buffer is allocated from the memory of the ESP32.

For the ESP32_4827S043 this snoops away 480x270x2 = 261120 bytes, leaving only 54140 bytes for the application!
For a resolution of 800x480, 800x480x2 = 768000 bytes are required. This is more than the available RAM.
That is the reason that for these higher resolutions PSRAM is available and used to store this buffer.

## LV_COLOR_16_SWAP

The LVGL library has a define called **LV_COLOR_16_SWAP**. The value can be 1 (yes) or 0 (no).
Expand All @@ -203,12 +215,12 @@ The library exposes the following functions.
### void smartdisplay_init()

This is the first function that needs to be called.
It initializes the display controller and touch controller and will turn on the display.
It initializes the display controller and touch controller and will turn on the display at 50% brightness.

### void smartdisplay_tft_set_backlight(uint16_t duty)
### void smartdisplay_tft_set_backlight(float duty)

Set the brightness of the backlight display.
The resolution is 12 bit so valid values are from 0-1023.
The range is from [0, 1] so 0 is off, 0.5 is half and 1 is full brightness.

## Rotation

Expand Down
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