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Merge pull request #634 from suda-morris/feat/add_nt35510_driver
feat(lcd): add nt35510 LCD driver
2 parents e13e17e + 5aea9a5 commit 18f803d

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‎.github/workflows/upload_component.yml‎

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components/lcd/esp_lcd_ssd1681
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components/lcd/esp_lcd_ili9881c
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components/lcd/esp_lcd_lt8912b
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components/lcd/esp_lcd_nt35510
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components/io_expander/esp_io_expander
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components/io_expander/esp_io_expander_tca9554
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components/io_expander/esp_io_expander_tca95xx_16bit

‎components/lcd/.build-test-rules.yml‎

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- if: IDF_TARGET not in ["esp32p4"]
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reason: Component is supported only for esp32p4 target
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components/lcd/esp_lcd_nt35510:
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depends_filepatterns:
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- "components/lcd/esp_lcd_nt35510/**"
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disable:
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- if: IDF_VERSION < "5.3.0"
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reason: Component is supported only for IDF >= 5.3
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- if: IDF_TARGET not in ["esp32", "esp32s2", "esp32s3"]
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reason: Test on these targets is sufficient
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components/lcd/esp_lcd_ssd1681:
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depends_filepatterns:
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- "components/lcd/esp_lcd_ssd1681/**"

‎components/lcd/esp_lcd_nt35510/CMakeLists.txt‎

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idf_component_register(SRCS "esp_lcd_nt35510.c"
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INCLUDE_DIRS "include"
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REQUIRES "esp_lcd"
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PRIV_REQUIRES "esp_driver_gpio")

‎components/lcd/esp_lcd_nt35510/README.md‎

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# ESP LCD NT35510
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[![Component Registry](https://components.espressif.com/components/espressif/esp_lcd_nt35510/badge.svg)](https://components.espressif.com/components/espressif/esp_lcd_nt35510)
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Implementation of the NT35510 LCD controller with esp_lcd component.
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| LCD controller | Communication interface | Component name | Link to datasheet |
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| :------------: | :---------------------: | :------------: | :---------------: |
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| NT35510 | 8080 | esp_lcd_nt35510 | [Specification](https://www.lcdwiki.com/res/MAR4018/NT35510_Preliminary_V0.80.pdf) |
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## Add to project
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Packages from this repository are uploaded to [Espressif's component service](https://components.espressif.com/).
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You can add them to your project via `idf.py add-dependency`, e.g.
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```bash
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idf.py add-dependency "espressif/esp_lcd_nt35510^1.0.0"
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```
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Alternatively, you can create `idf_component.yml`. More is in [Espressif's documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-component-manager.html).

‎components/lcd/esp_lcd_nt35510/esp_lcd_nt35510.c‎

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/*
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* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdlib.h>
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#include <sys/cdefs.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_lcd_panel_interface.h"
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#include "esp_lcd_panel_io.h"
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#include "esp_lcd_panel_vendor.h"
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#include "esp_lcd_panel_ops.h"
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#include "esp_lcd_panel_commands.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_lcd_nt35510.h"
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static const char *TAG = "nt35510";
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static esp_err_t panel_nt35510_del(esp_lcd_panel_t *panel);
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static esp_err_t panel_nt35510_reset(esp_lcd_panel_t *panel);
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static esp_err_t panel_nt35510_init(esp_lcd_panel_t *panel);
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static esp_err_t panel_nt35510_draw_bitmap(esp_lcd_panel_t *panel, int x_start, int y_start, int x_end, int y_end,
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const void *color_data);
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static esp_err_t panel_nt35510_invert_color(esp_lcd_panel_t *panel, bool invert_color_data);
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static esp_err_t panel_nt35510_mirror(esp_lcd_panel_t *panel, bool mirror_x, bool mirror_y);
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static esp_err_t panel_nt35510_swap_xy(esp_lcd_panel_t *panel, bool swap_axes);
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static esp_err_t panel_nt35510_set_gap(esp_lcd_panel_t *panel, int x_gap, int y_gap);
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static esp_err_t panel_nt35510_disp_on_off(esp_lcd_panel_t *panel, bool off);
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static esp_err_t panel_nt35510_sleep(esp_lcd_panel_t *panel, bool sleep);
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typedef struct {
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esp_lcd_panel_t base;
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esp_lcd_panel_io_handle_t io;
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gpio_num_t reset_gpio_num;
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bool reset_level;
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int x_gap;
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int y_gap;
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uint8_t fb_bits_per_pixel;
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uint8_t madctl_val; // save current value of LCD_CMD_MADCTL register
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uint8_t colmod_val; // save current value of LCD_CMD_COLMOD register
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} nt35510_panel_t;
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esp_err_t
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esp_lcd_new_panel_nt35510(const esp_lcd_panel_io_handle_t io, const esp_lcd_panel_dev_config_t *panel_dev_config,
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esp_lcd_panel_handle_t *ret_panel)
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{
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esp_err_t ret = ESP_OK;
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nt35510_panel_t *nt35510 = NULL;
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ESP_GOTO_ON_FALSE(io && panel_dev_config && ret_panel, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
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nt35510 = calloc(1, sizeof(nt35510_panel_t));
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ESP_GOTO_ON_FALSE(nt35510, ESP_ERR_NO_MEM, err, TAG, "no mem for nt35510 panel");
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if (panel_dev_config->reset_gpio_num >= 0) {
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gpio_config_t io_conf = {
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.mode = GPIO_MODE_OUTPUT,
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.pin_bit_mask = 1ULL << panel_dev_config->reset_gpio_num,
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};
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ESP_GOTO_ON_ERROR(gpio_config(&io_conf), err, TAG, "configure GPIO for RST line failed");
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}
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switch (panel_dev_config->rgb_ele_order) {
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case LCD_RGB_ELEMENT_ORDER_RGB:
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nt35510->madctl_val = 0;
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break;
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case LCD_RGB_ELEMENT_ORDER_BGR:
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nt35510->madctl_val |= LCD_CMD_BGR_BIT;
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break;
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default:
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ESP_GOTO_ON_FALSE(false, ESP_ERR_NOT_SUPPORTED, err, TAG, "unsupported RGB element order");
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break;
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}
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uint8_t fb_bits_per_pixel = 0;
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switch (panel_dev_config->bits_per_pixel) {
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case 16: // RGB565
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nt35510->colmod_val = 0x55;
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fb_bits_per_pixel = 16;
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break;
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case 18: // RGB666
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nt35510->colmod_val = 0x66;
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// each color component (R/G/B) should occupy the 6 high bits of a byte, which means 3 full bytes are required for a pixel
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fb_bits_per_pixel = 24;
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break;
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case 24: // RGB888
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nt35510->colmod_val = 0x77;
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fb_bits_per_pixel = 24;
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break;
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default:
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ESP_GOTO_ON_FALSE(false, ESP_ERR_NOT_SUPPORTED, err, TAG, "unsupported pixel width");
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break;
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}
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nt35510->io = io;
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nt35510->fb_bits_per_pixel = fb_bits_per_pixel;
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nt35510->reset_gpio_num = panel_dev_config->reset_gpio_num;
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nt35510->reset_level = panel_dev_config->flags.reset_active_high;
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nt35510->base.del = panel_nt35510_del;
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nt35510->base.reset = panel_nt35510_reset;
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nt35510->base.init = panel_nt35510_init;
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nt35510->base.draw_bitmap = panel_nt35510_draw_bitmap;
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nt35510->base.invert_color = panel_nt35510_invert_color;
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nt35510->base.set_gap = panel_nt35510_set_gap;
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nt35510->base.mirror = panel_nt35510_mirror;
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nt35510->base.swap_xy = panel_nt35510_swap_xy;
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nt35510->base.disp_on_off = panel_nt35510_disp_on_off;
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nt35510->base.disp_sleep = panel_nt35510_sleep;
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*ret_panel = &(nt35510->base);
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ESP_LOGD(TAG, "new nt35510 panel @%p", nt35510);
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return ESP_OK;
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err:
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if (nt35510) {
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if (panel_dev_config->reset_gpio_num >= 0) {
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gpio_reset_pin(panel_dev_config->reset_gpio_num);
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}
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free(nt35510);
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}
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return ret;
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}
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static esp_err_t panel_nt35510_del(esp_lcd_panel_t *panel)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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if (nt35510->reset_gpio_num >= 0) {
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gpio_reset_pin(nt35510->reset_gpio_num);
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}
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ESP_LOGD(TAG, "del nt35510 panel @%p", nt35510);
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free(nt35510);
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_reset(esp_lcd_panel_t *panel)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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// perform hardware reset
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if (nt35510->reset_gpio_num >= 0) {
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gpio_set_level(nt35510->reset_gpio_num, nt35510->reset_level);
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vTaskDelay(pdMS_TO_TICKS(10));
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gpio_set_level(nt35510->reset_gpio_num, !nt35510->reset_level);
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vTaskDelay(pdMS_TO_TICKS(10));
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} else {
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// perform software reset
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_SWRESET << 8, NULL, 0), TAG,
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"io tx param failed");
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vTaskDelay(pdMS_TO_TICKS(20)); // spec, wait at least 5m before sending new command
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}
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_init(esp_lcd_panel_t *panel)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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// LCD goes into sleep mode and display will be turned off after power on reset, exit sleep mode first
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_SLPOUT << 8, NULL, 0), TAG,
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"io tx param failed");
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vTaskDelay(pdMS_TO_TICKS(100));
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL << 8, (uint16_t[]) {
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nt35510->madctl_val,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_COLMOD << 8, (uint16_t[]) {
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nt35510->colmod_val,
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}, 2), TAG, "io tx param failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_draw_bitmap(esp_lcd_panel_t *panel, int x_start, int y_start, int x_end, int y_end,
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const void *color_data)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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x_start += nt35510->x_gap;
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x_end += nt35510->x_gap;
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y_start += nt35510->y_gap;
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y_end += nt35510->y_gap;
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// define an area of frame memory where MCU can access
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_CASET << 8) + 0, (uint16_t[]) {
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(x_start >> 8) & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_CASET << 8) + 1, (uint16_t[]) {
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x_start & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_CASET << 8) + 2, (uint16_t[]) {
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((x_end - 1) >> 8) & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_CASET << 8) + 3, (uint16_t[]) {
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(x_end - 1) & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_RASET << 8) + 0, (uint16_t[]) {
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(y_start >> 8) & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_RASET << 8) + 1, (uint16_t[]) {
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y_start & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_RASET << 8) + 2, (uint16_t[]) {
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((y_end - 1) >> 8) & 0xFF,
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}, 2), TAG, "io tx param failed");
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, (LCD_CMD_RASET << 8) + 3, (uint16_t[]) {
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(y_end - 1) & 0xFF,
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}, 2), TAG, "io tx param failed");
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// transfer frame buffer
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size_t len = (x_end - x_start) * (y_end - y_start) * nt35510->fb_bits_per_pixel / 8;
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_color(io, LCD_CMD_RAMWR << 8, color_data, len), TAG, "io tx color failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_invert_color(esp_lcd_panel_t *panel, bool invert_color_data)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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int command = 0;
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if (invert_color_data) {
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command = LCD_CMD_INVON;
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} else {
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command = LCD_CMD_INVOFF;
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}
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, command << 8, NULL, 0), TAG,
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"io tx param failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_mirror(esp_lcd_panel_t *panel, bool mirror_x, bool mirror_y)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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if (mirror_x) {
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nt35510->madctl_val |= LCD_CMD_MX_BIT;
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} else {
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nt35510->madctl_val &= ~LCD_CMD_MX_BIT;
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}
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if (mirror_y) {
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nt35510->madctl_val |= LCD_CMD_MY_BIT;
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} else {
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nt35510->madctl_val &= ~LCD_CMD_MY_BIT;
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}
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL << 8, (uint16_t[]) {
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nt35510->madctl_val
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}, 2), TAG, "io tx param failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_swap_xy(esp_lcd_panel_t *panel, bool swap_axes)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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if (swap_axes) {
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nt35510->madctl_val |= LCD_CMD_MV_BIT;
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} else {
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nt35510->madctl_val &= ~LCD_CMD_MV_BIT;
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}
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL << 8, (uint16_t[]) {
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nt35510->madctl_val
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}, 2), TAG, "io tx param failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_set_gap(esp_lcd_panel_t *panel, int x_gap, int y_gap)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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nt35510->x_gap = x_gap;
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nt35510->y_gap = y_gap;
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_disp_on_off(esp_lcd_panel_t *panel, bool on_off)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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int command = 0;
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if (on_off) {
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command = LCD_CMD_DISPON;
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} else {
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command = LCD_CMD_DISPOFF;
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}
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, command << 8, NULL, 0), TAG,
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"io tx param failed");
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return ESP_OK;
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}
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static esp_err_t panel_nt35510_sleep(esp_lcd_panel_t *panel, bool sleep)
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{
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nt35510_panel_t *nt35510 = __containerof(panel, nt35510_panel_t, base);
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esp_lcd_panel_io_handle_t io = nt35510->io;
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int command = 0;
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if (sleep) {
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command = LCD_CMD_SLPIN;
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} else {
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command = LCD_CMD_SLPOUT;
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}
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ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, command << 8, NULL, 0), TAG,
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"io tx param failed");
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vTaskDelay(pdMS_TO_TICKS(100));
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return ESP_OK;
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}

‎components/lcd/esp_lcd_nt35510/idf_component.yml‎

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version: "1.0.0"
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description: ESP LCD NT35510
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url: https://github.com/espressif/esp-bsp/tree/master/components/lcd/esp_lcd_nt35510
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dependencies:
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idf: ">=5.3" # For earlier versions, NT35510 driver can be found in esp_lcd component

‎components/lcd/esp_lcd_nt35510/include/esp_lcd_nt35510.h‎

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/*
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* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "esp_err.h"
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#include "esp_lcd_panel_dev.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Create LCD panel for model NT35510
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*
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* @param[in] io LCD panel IO handle
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* @param[in] panel_dev_config general panel device configuration
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* @param[out] ret_panel Returned LCD panel handle
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* @return
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* - ESP_ERR_INVALID_ARG if parameter is invalid
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* - ESP_ERR_NO_MEM if out of memory
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* - ESP_OK on success
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*/
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esp_err_t esp_lcd_new_panel_nt35510(const esp_lcd_panel_io_handle_t io, const esp_lcd_panel_dev_config_t *panel_dev_config, esp_lcd_panel_handle_t *ret_panel);
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#ifdef __cplusplus
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}
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#endif

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