├── .gitignore ├── LICENSE ├── README.md ├── assets └── demo.jpg ├── include └── lv_demo_conf.h ├── platformio.ini └── src └── main.cpp /.gitignore: -------------------------------------------------------------------------------- 1 | .pio 2 | .vscode 3 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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Useful if the display has a 8 bit interface (e.g. SPI)*/ 16 | #define LV_COLOR_16_SWAP 1 17 | 18 | #ifndef LV_EX_CONF_H 19 | #define LV_EX_CONF_H 20 | 21 | 22 | /******************* 23 | * GENERAL SETTING 24 | *******************/ 25 | #define LV_EX_PRINTF 0 /*Enable printf-ing data in demoes and examples*/ 26 | #define LV_EX_KEYBOARD 0 /*Add PC keyboard support to some examples (`lv_drivers` repository is required)*/ 27 | #define LV_EX_MOUSEWHEEL 0 /*Add 'encoder' (mouse wheel) support to some examples (`lv_drivers` repository is required)*/ 28 | 29 | /********************* 30 | * DEMO USAGE 31 | *********************/ 32 | 33 | /*Show some widget*/ 34 | #define LV_USE_DEMO_WIDGETS 1 35 | #if LV_USE_DEMO_WIDGETS 36 | #define LV_DEMO_WIDGETS_SLIDESHOW 0 37 | #endif 38 | 39 | /*Printer demo, optimized for 800x480*/ 40 | #define LV_USE_DEMO_PRINTER 0 41 | 42 | /*Demonstrate the usage of encoder and keyboard*/ 43 | #define LV_USE_DEMO_KEYPAD_AND_ENCODER 0 44 | 45 | /*Benchmark your system*/ 46 | #define LV_USE_DEMO_BENCHMARK 0 47 | 48 | /*Stress test for LVGL*/ 49 | #define LV_USE_DEMO_STRESS 1 50 | 51 | /*Music player demo*/ 52 | #define LV_USE_DEMO_MUSIC 0 53 | #if LV_USE_DEMO_MUSIC 54 | # define LV_DEMO_MUSIC_LANDSCAPE 0 55 | # define LV_DEMO_MUSIC_LARGE 0 56 | #define LV_DEMO_MUSIC_AUTO_PLAY 0 57 | #endif 58 | 59 | #endif /*LV_EX_CONF_H*/ 60 | 61 | #endif /*End of "Content enable"*/ 62 | 63 | -------------------------------------------------------------------------------- /platformio.ini: -------------------------------------------------------------------------------- 1 | ; PlatformIO Project Configuration File 2 | ; 3 | ; Build options: build flags, source filter 4 | ; Upload options: custom upload port, speed and extra flags 5 | ; Library options: dependencies, extra library storages 6 | ; Advanced options: extra scripting 7 | ; 8 | ; Please visit documentation for the other options and examples 9 | ; https://docs.platformio.org/page/projectconf.html 10 | 11 | [env:pico] 12 | platform = raspberrypi 13 | board = pico 14 | framework = arduino 15 | upload_port = /dev/ttyACM0 16 | monitor_port = /dev/ttyACM0 17 | build_flags = 18 | -I./include 19 | -Wno-error=ignored-qualifiers 20 | ; -Wno-error=unused-variables 21 | ; -Wno-error=ignored-qualifiers 22 | -DUSER_SETUP_LOADED=1 23 | -DHX8357D_DRIVER=1 24 | -DTFT_MISO=16 25 | -DTFT_MOSI=19 26 | -DTFT_SCLK=18 27 | -DTFT_CS=17 28 | -DTFT_DC=20 29 | ; ; -DTFT_RST=32 30 | ; -DLOAD_GLCD=1 31 | ; -DLOAD_FONT2=1 32 | ; -DLOAD_FONT4=1 33 | ; -DLOAD_FONT6=1 34 | ; -DLOAD_FONT7=1 35 | ; -DLOAD_FONT8=1 36 | ; -DLOAD_GFXFF=1 37 | ; -DSMOOTH_FONT=1 38 | ; -DSPI_FREQUENCY=27000000 39 | ; -DSPI_TOUCH_FREQUENCY=2500000 40 | -DLV_CONF_SKIP=1 41 | -DLV_CONF_INCLUDE_SIMPLE=1 42 | -DLV_DEMO_CONF_INCLUDE_SIMPLE=1 43 | -DLV_LVGL_H_INCLUDE_SIMPLE=1 44 | 45 | lib_deps = 46 | SPI 47 | bodmer/TFT_eSPI @ ^2.3.70 48 | lvgl/lvgl @ ^8.0.1 49 | lvgl/lv_examples 50 | build_unflags = 51 | -Wvla 52 | -Wall 53 | -Werror=all 54 | -------------------------------------------------------------------------------- /src/main.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | TFT_eSPI tft = TFT_eSPI(); /* TFT instance */ 6 | 7 | /*Change to your screen resolution*/ 8 | static const uint32_t screenWidth = 480; 9 | static const uint32_t screenHeight = 320; 10 | 11 | static lv_disp_draw_buf_t draw_buf; 12 | static lv_color_t buf[ screenWidth * 10 ]; 13 | 14 | #if LV_USE_LOG != 0 15 | /* Serial debugging */ 16 | void my_print( lv_log_level_t level, const char * file, uint32_t line, const char * fn_name, const char * dsc ) 17 | { 18 | Serial.printf( "%s(%s)@%d->%s\r\n", file, fn_name, line, dsc ); 19 | Serial.flush(); 20 | } 21 | #endif 22 | 23 | /* Display flushing */ 24 | void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p ) 25 | { 26 | uint32_t w = ( area->x2 - area->x1 + 1 ); 27 | uint32_t h = ( area->y2 - area->y1 + 1 ); 28 | 29 | tft.startWrite(); 30 | tft.setAddrWindow( area->x1, area->y1, w, h ); 31 | tft.pushColors( ( uint16_t * )&color_p->full, w * h, true ); 32 | tft.endWrite(); 33 | 34 | lv_disp_flush_ready( disp ); 35 | } 36 | 37 | /*Read the touchpad*/ 38 | void my_touchpad_read( lv_indev_drv_t * indev_driver, lv_indev_data_t * data ) 39 | { 40 | data->state = LV_INDEV_STATE_REL; 41 | 42 | // uint16_t touchX, touchY; 43 | 44 | // bool touched = tft.getTouch( &touchX, &touchY, 600 ); 45 | 46 | // if( !touched ) 47 | // { 48 | // data->state = LV_INDEV_STATE_REL; 49 | // } 50 | // else 51 | // { 52 | // data->state = LV_INDEV_STATE_PR; 53 | 54 | // /*Set the coordinates*/ 55 | // data->point.x = touchX; 56 | // data->point.y = touchY; 57 | 58 | // Serial.print( "Data x " ); 59 | // Serial.println( touchX ); 60 | 61 | // Serial.print( "Data y " ); 62 | // Serial.println( touchY ); 63 | // } 64 | } 65 | 66 | void setup() 67 | { 68 | Serial.begin( 115200 ); /* prepare for possible serial debug */ 69 | Serial.println( "Hello Arduino! (V8.0.X)" ); 70 | Serial.println( "I am LVGL_Arduino" ); 71 | 72 | lv_init(); 73 | 74 | #if LV_USE_LOG != 0 75 | lv_log_register_print_cb( my_print ); /* register print function for debugging */ 76 | #endif 77 | 78 | tft.begin(); /* TFT init */ 79 | tft.setRotation( 2 ); /* Landscape orientation, flipped */ 80 | 81 | /*Set the touchscreen calibration data, 82 | the actual data for your display can be aquired using 83 | the Generic -> Touch_calibrate example from the TFT_eSPI library*/ 84 | // uint16_t calData[5] = { 275, 3620, 264, 3532, 1 }; 85 | // tft.setTouch( calData ); 86 | 87 | lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * 10 ); 88 | 89 | /*Initialize the display*/ 90 | static lv_disp_drv_t disp_drv; 91 | lv_disp_drv_init( &disp_drv ); 92 | /*Change the following line to your display resolution*/ 93 | disp_drv.hor_res = screenWidth; 94 | disp_drv.ver_res = screenHeight; 95 | disp_drv.flush_cb = my_disp_flush; 96 | disp_drv.draw_buf = &draw_buf; 97 | lv_disp_drv_register( &disp_drv ); 98 | 99 | /*Initialize the (dummy) input device driver*/ 100 | static lv_indev_drv_t indev_drv; 101 | lv_indev_drv_init( &indev_drv ); 102 | indev_drv.type = LV_INDEV_TYPE_POINTER; 103 | indev_drv.read_cb = my_touchpad_read; 104 | lv_indev_drv_register( &indev_drv ); 105 | 106 | #if 0 107 | /* Create simple label */ 108 | lv_obj_t *label = lv_label_create( lv_scr_act() ); 109 | lv_label_set_text( label, "Hello Arduino! (V8.0.X)" ); 110 | lv_obj_align( label, LV_ALIGN_CENTER, 0, 0 ); 111 | #else 112 | /* Try an example from the lv_examples Arduino library 113 | make sure to include it as written above. 114 | lv_example_btn_1(); 115 | */ 116 | 117 | // uncomment one of these demos 118 | lv_demo_widgets(); // OK 119 | //lv_demo_benchmark(); // OK 120 | // lv_demo_keypad_encoder(); // works, but I haven't an encoder 121 | // lv_demo_music(); // NOK 122 | // lv_demo_printer(); 123 | //lv_demo_stress(); // seems to be OK 124 | #endif 125 | Serial.println( "Setup done" ); 126 | } 127 | 128 | void loop() 129 | { 130 | lv_timer_handler(); /* let the GUI do its work */ 131 | delay( 5000 ); 132 | } --------------------------------------------------------------------------------