I've been able to figure out several other ESP32 LCD devboards, but this 3.5" RGB LCD from elecrow has been a major headache.
Right now, for days i've been trying to get LVGL running so that I can build a UI in squareline, and I've tried everything I can think of. At the moment, I apparently cannot even upload the factory LVGL example that initially shipped on the board. Sketch Code and Error Code below.
Can someone explain to me what exactly the issue is?
(Note: I had this same error code using my default arduino folder, so i figured id try setting in preferences an isolated Arduino folder with just the libraries required for the sketch)
Sketch
#include<Arduino.h>
#include <lvgl.h>
//#include <WiFi.h>
#define LGFX_USE_V1
#include <LovyanGFX.hpp>
#include "FT6236.h"
/*
If you want to use the LVGL examples,
make sure to install the lv_examples Arduino library
and uncomment the following line.
*/
#include <examples/lv_examples.h>
#include <demos/lv_demos.h>
const int i2c_touch_addr = TOUCH_I2C_ADD;
static lv_obj_t * ui_MENU;
static lv_obj_t * ui_TOUCH;
static lv_obj_t * ui_JIAOZHUN;
static lv_obj_t * ui_Label2;
static lv_obj_t * ui_Label;//TOUCH界面label
static lv_obj_t * ui_Label3;//TOUCH界面label3
static lv_obj_t * ui_Labe2;//Menu界面进度条label
#define LCD_BL 46
#define SDA_FT6236 38
#define SCL_FT6236 39
//FT6236 ts = FT6236();
class LGFX : public lgfx::LGFX_Device
{
lgfx::Panel_ILI9488 _panel_instance;
lgfx::Bus_Parallel16 _bus_instance;
public:
LGFX(void)
{
{
auto cfg = _bus_instance.config();
cfg.port = 0;
cfg.freq_write = 80000000;
cfg.pin_wr = 18;
cfg.pin_rd = 48;
cfg.pin_rs = 45;
cfg.pin_d0 = 47;
cfg.pin_d1 = 21;
cfg.pin_d2 = 14;
cfg.pin_d3 = 13;
cfg.pin_d4 = 12;
cfg.pin_d5 = 11;
cfg.pin_d6 = 10;
cfg.pin_d7 = 9;
cfg.pin_d8 = 3;
cfg.pin_d9 = 8;
cfg.pin_d10 = 16;
cfg.pin_d11 = 15;
cfg.pin_d12 = 7;
cfg.pin_d13 = 6;
cfg.pin_d14 = 5;
cfg.pin_d15 = 4;
_bus_instance.config(cfg);
_panel_instance.setBus(&_bus_instance);
}
{
auto cfg = _panel_instance.config();
cfg.pin_cs = -1;
cfg.pin_rst = -1;
cfg.pin_busy = -1;
cfg.memory_width = 320;
cfg.memory_height = 480;
cfg.panel_width = 320;
cfg.panel_height = 480;
cfg.offset_x = 0;
cfg.offset_y = 0;
cfg.offset_rotation = 2;
cfg.dummy_read_pixel = 8;
cfg.dummy_read_bits = 1;
cfg.readable = true;
cfg.invert = false;
cfg.rgb_order = false;
cfg.dlen_16bit = true;
cfg.bus_shared = true;
_panel_instance.config(cfg);
}
setPanel(&_panel_instance);
}
};
LGFX tft;
/*Change to your screen resolution*/
static const uint16_t screenWidth = 480;
static const uint16_t screenHeight = 320;
static lv_disp_draw_buf_t draw_buf;
static lv_color_t buf[ screenWidth * screenHeight / 5 ];
/* Display flushing */
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
{
uint32_t w = ( area->x2 - area->x1 + 1 );
uint32_t h = ( area->y2 - area->y1 + 1 );
tft.startWrite();
tft.setAddrWindow( area->x1, area->y1, w, h );
tft.writePixels((lgfx::rgb565_t *)&color_p->full, w * h);
tft.endWrite();
lv_disp_flush_ready( disp );
}
void my_touchpad_read( lv_indev_drv_t * indev_driver, lv_indev_data_t * data )
{
int pos[2] = {0, 0};
ft6236_pos(pos);
if (pos[0] > 0 && pos[1] > 0)
{
data->state = LV_INDEV_STATE_PR;
// data->point.x = tft.width()-pos[1];
// data->point.y = pos[0];
data->point.x = tft.width() - pos[1];
data->point.y = pos[0];
Serial.printf("x-%d,y-%d\n", data->point.x, data->point.y);
}
else {
data->state = LV_INDEV_STATE_REL;
}
}
void touch_init()
{
// I2C init
Wire.begin(SDA_FT6236, SCL_FT6236);
byte error, address;
Wire.beginTransmission(i2c_touch_addr);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
Serial.print(i2c_touch_addr, HEX);
Serial.println(" !");
}
else if (error == 4)
{
Serial.print("Unknown error at address 0x");
Serial.println(i2c_touch_addr, HEX);
}
}
void setup()
{
Serial.begin( 115200 ); /* prepare for possible serial debug */
// WiFi.mode(WIFI_OFF);
// if (WiFi.status() != WL_CONNECTED)
// {
// Serial.println("WIFI OFF");
// }
tft.begin(); /* TFT init */
tft.setRotation( 1 ); /* Landscape orientation, flipped */
tft.fillScreen(TFT_BLACK);
delay(500);
pinMode(LCD_BL, OUTPUT);
digitalWrite(LCD_BL, HIGH);
// if (!ts.begin(0, SDA_FT6236, SCL_FT6236)) {
// Serial.println("Unable to start the capacitive touch Screen.");
// }
touch_init();
lv_init();
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 5 );
/*Initialize the display*/
static lv_disp_drv_t disp_drv;
lv_disp_drv_init( &disp_drv );
/*Change the following line to your display resolution*/
disp_drv.hor_res = screenWidth;
disp_drv.ver_res = screenHeight;
disp_drv.flush_cb = my_disp_flush;
disp_drv.draw_buf = &draw_buf;
lv_disp_drv_register( &disp_drv );
/*Initialize the (dummy) input device driver*/
static lv_indev_drv_t indev_drv;
lv_indev_drv_init( &indev_drv );
indev_drv.type = LV_INDEV_TYPE_POINTER;
indev_drv.read_cb = my_touchpad_read;
lv_indev_drv_register( &indev_drv );
#if 0
/* Create simple label */
lv_example_get_started_4();
#else
/* Try an example from the lv_examples Arduino library
make sure to include it as written above.
*/
// uncomment one of these demos
lv_demo_widgets(); // OK
// label_xy();
#endif
Serial.println( "Setup done" );
}
void loop()
{
lv_timer_handler(); /* let the GUI do its work */
delay( 5 );
}
static void Label_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * btn = lv_event_get_target(e);
if (code == LV_EVENT_ALL) {
int sensorValue = analogRead(19);
Serial.print("A口数值： ");
Serial.println(sensorValue);
lv_label_set_text_fmt(btn, "A: %d", sensorValue);
}
}
//触摸Label控件
void label_xy()
{
ui_Label = lv_label_create(lv_scr_act());
lv_obj_enable_style_refresh(true);
lv_obj_set_width(ui_Label, LV_SIZE_CONTENT); /// 1
lv_obj_set_height(ui_Label, LV_SIZE_CONTENT); /// 1
lv_obj_set_x(ui_Label, -55);
lv_obj_set_y(ui_Label, -40);
lv_obj_set_align(ui_Label, LV_ALIGN_CENTER);
lv_obj_set_style_text_color(ui_Label, lv_color_hex(0xFF0000), LV_PART_MAIN | LV_STATE_DEFAULT);
lv_obj_set_style_text_opa(ui_Label, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
lv_obj_set_style_text_font(ui_Label, &lv_font_montserrat_24, LV_PART_MAIN | LV_STATE_DEFAULT);
lv_obj_add_event_cb(ui_Label, Label_event_cb, LV_EVENT_ALL, NULL);
// ui_Label3 = lv_label_create(lv_scr_act());
// lv_obj_enable_style_refresh(true);
// lv_obj_set_width(ui_Label3, LV_SIZE_CONTENT); /// 1
// lv_obj_set_height(ui_Label3, LV_SIZE_CONTENT); /// 1
// lv_obj_set_x(ui_Label3, 85);
// lv_obj_set_y(ui_Label3, -40);
// lv_obj_set_align(ui_Label3, LV_ALIGN_CENTER);
// lv_obj_set_style_text_color(ui_Label3, lv_color_hex(0x00FF00), LV_PART_MAIN | LV_STATE_DEFAULT);
// lv_obj_set_style_text_opa(ui_Label3, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
// lv_obj_set_style_text_font(ui_Label3, &lv_font_montserrat_24, LV_PART_MAIN | LV_STATE_DEFAULT);
}
Error Code
In file included from c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\common.hpp:22,
from c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1/platforms/esp32/Bus_SPI.hpp:47,
from c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1/platforms/device.hpp:42,
from c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1_init.hpp:22,
from c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/LovyanGFX.hpp:31,
from C:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\src\LVGL_RGB_\LVGL_RGB_.ino:5:
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp: In function 'void lgfx::v1::delayMicroseconds(uint32_t)':
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp:46:80: error: 'ets_delay_us' was not declared in this scope; did you mean 'sys_delay_ms'?
46 | __attribute__ ((unused)) static inline void delayMicroseconds(uint32_t us) { ets_delay_us(us); }
| ^~~~~~~~~~~~
| sys_delay_ms
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp: In function 'void lgfx::v1::delay(uint32_t)':
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp:57:9: error: 'ets_delay_us' was not declared in this scope; did you mean 'sys_delay_ms'?
57 | ets_delay_us(ms - time);
| ^~~~~~~~~~~~
| sys_delay_ms
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp: In function 'volatile uint32_t* lgfx::v1::get_gpio_hi_reg(int_fast8_t)':
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp:85:92: error: 'GPIO' was not declared in this scope
85 | static inline volatile uint32_t* get_gpio_hi_reg(int_fast8_t pin) { return (pin & 32) ? &GPIO.out1_w1ts.val : &GPIO.out_w1ts; }
| ^~~~
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp: In function 'volatile uint32_t* lgfx::v1::get_gpio_lo_reg(int_fast8_t)':
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp:87:92: error: 'GPIO' was not declared in this scope
87 | static inline volatile uint32_t* get_gpio_lo_reg(int_fast8_t pin) { return (pin & 32) ? &GPIO.out1_w1tc.val : &GPIO.out_w1tc; }
| ^~~~
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp: In function 'bool lgfx::v1::gpio_in(int_fast8_t)':
c:\users\gabriel\downloads\arduino_rgb\arduino\libraries\lovyangfx\src\lgfx\v1\platforms\esp32/common.hpp:89:70: error: 'GPIO' was not declared in this scope
89 | static inline bool gpio_in(int_fast8_t pin) { return ((pin & 32) ? GPIO.in1.data : GPIO.in) & (1 << (pin & 31)); }
| ^~~~
In file included from c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1_init.hpp:24:
c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1/lgfx_filesystem_support.hpp: At global scope:
c:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\LovyanGFX\src/lgfx/v1/lgfx_filesystem_support.hpp:60:13: error: template-id not allowed for destructor
60 | virtual ~LGFX_FILESYSTEM_Support<Base>()
| ^
Multiple libraries were found for "Wire.h"
Used: C:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\Wire
Not used: C:\Users\Gabriel\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.1\libraries\Wire
Multiple libraries were found for "SPI.h"
Used: C:\Users\Gabriel\Downloads\Arduino_RGB\Arduino\libraries\SPI
Not used: C:\Users\Gabriel\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.1\libraries\SPI
exit status 1
Compilation error: exit status 1