Waveshare ESP32-S3-Touch-AMOLED-1.8 Display Support

Waveshare ESP32-S3-Touch-AMOLED-1.8 Display used QSPI

LCD controller	Communication interface	Component name	Link to datasheet
SH8601	QSPI	esp_lcd_sh8601	PDF

Add to project

Packages from this repository are uploaded to Espressif's component service. You can add them to your project via idf.py add-dependancy, e.g.

    idf.py add-dependency "waveshare/esp_lcd_sh8601"

Alternatively, you can create idf_component.yml. More is in Espressif's documentation.

BackLight

sent 0x51 0x00~0xFF to control backlight

Initialization Code

QSPI Interface

    ESP_LOGI(TAG, "Initialize QSPI bus");
    const esp_lcd_panel_io_spi_config_t io_config = SH8601_PANEL_BUS_QSPI_CONFIG(EXAMPLE_PIN_NUM_LCD_PCLK,
                                                                                 EXAMPLE_PIN_NUM_LCD_DATA0,
                                                                                 EXAMPLE_PIN_NUM_LCD_DATA1,
                                                                                 EXAMPLE_PIN_NUM_LCD_DATA2,
                                                                                 EXAMPLE_PIN_NUM_LCD_DATA3,
                                                                                 EXAMPLE_LCD_H_RES * 80 * sizeof(uint16_t));
    ESP_ERROR_CHECK(spi_bus_initialize(EXAMPLE_LCD_HOST, &buscfg, SPI_DMA_CH_AUTO));

    ESP_LOGI(TAG, "Install panel IO");
    esp_lcd_panel_io_handle_t io_handle = NULL;
    const esp_lcd_panel_io_spi_config_t io_config = SH8601_PANEL_IO_QSPI_CONFIG(EXAMPLE_PIN_NUM_LCD_CS, callback, &callback_data);
    ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)EXAMPLE_LCD_HOST, &io_config, &io_handle));

/**
 * Uncomment these line if use custom initialization commands.
 * The array should be declared as static const and positioned outside the function.
 */
// static const sh8601_lcd_init_cmd_t lcd_init_cmds[] = {
// //  {cmd, { data }, data_size, delay_ms}
//    {0x44, (uint8_t []){0x00, 0xc8}, 2, 0},
//    {0x35, (uint8_t []){0x00}, 0, 0},
//    {0x53, (uint8_t []){0x20}, 1, 25},
//    {0x29, (uint8_t []){0x00}, 0, 120},
//     ...
// };

    ESP_LOGI(TAG, "Install SH8601 panel driver");
    esp_lcd_panel_handle_t panel_handle = NULL;
    const sh8601_vendor_config_t vendor_config = {
        // .init_cmds = lcd_init_cmds,         // Uncomment these line if use custom initialization commands
        // .init_cmds_size = sizeof(lcd_init_cmds) / sizeof(sh8601_lcd_init_cmd_t),
        .flags = {
            .use_qspi_interface = 1,
        },
    };
    const esp_lcd_panel_dev_config_t panel_config = {
        .reset_gpio_num = EXAMPLE_PIN_NUM_LCD_RST,
        .rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB,               // Implemented by LCD command `36h`
        .bits_per_pixel = 16,                                     // Implemented by LCD command `3Ah`
        .vendor_config = &vendor_config,
    };
    ESP_ERROR_CHECK(esp_lcd_new_panel_sh8601(io_handle, &panel_config, &panel_handle));

    esp_lcd_panel_reset(panel_handle);
    esp_lcd_panel_init(panel_handle);
    esp_lcd_panel_disp_on_off(panel_handle, true);

Notes

When utilizing esp_panel_lcd_draw_bitmap() to refresh the screen, ensure that x_start, y_start, x_end and y_end are divisible by 2. This is a requirement of SH8610. For LVGL, register the following function into rounder_cb of lv_disp_drv_t to round the coordinates.

void lvgl_port_rounder_callback(struct _lv_disp_drv_t * disp_drv, lv_area_t * area)
{
    uint16_t x1 = area->x1;
    uint16_t x2 = area->x2;
    uint16_t y1 = area->y1;
    uint16_t y2 = area->y2;

    // round the start of area down to the nearest even number
    area->x1 = (x1 >> 1) << 1;
    area->y1 = (y1 >> 1) << 1;

    // round the end of area up to the nearest odd number
    area->x2 = ((x2 >> 1) << 1) + 1;
    area->y2 = ((y2 >> 1) << 1) + 1;
}

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