#include "WiFi.h"
#include <ESP32Ping.h>
#include <lvgl.h>
#include <TFT_eSPI.h>
TFT_eSPI tft = TFT_eSPI();
int screenWidth = 320;
int screenHeight = 240;
static lv_color_t buf[LV_HOR_RES_MAX * LV_VER_RES_MAX / 10];
static lv_disp_buf_t disp_buf;
TaskHandle_t ntScanTaskHandler;
TaskHandle_t ntConnectTaskHandler;
String ssidName, password;
const char* remote_host = "www.google.com";
unsigned long timeout = 10000; // 10sec
int pingCount = 5;
/* LVGL objects */
static lv_obj_t * ddlist;
static lv_obj_t * bg_top;
static lv_obj_t * bg_middle;
static lv_obj_t * bg_bottom;
static lv_obj_t * ta_password;
static lv_obj_t * kb;
static lv_obj_t * mbox_connect;
static lv_obj_t * gauge;
static lv_obj_t * label_status;
/* Display flushing */
void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
{
uint16_t c;
tft.startWrite(); /* Start new TFT transaction */
tft.setAddrWindow(area->x1, area->y1, (area->x2 - area->x1 + 1), (area->y2 - area->y1 + 1)); /* set the working window */
for (int y = area->y1; y <= area->y2; y++) {
for (int x = area->x1; x <= area->x2; x++) {
c = color_p->full;
tft.writeColor(c, 1);
color_p++;
}
}
tft.endWrite(); /* terminate TFT transaction */
lv_disp_flush_ready(disp); /* tell lvgl that flushing is done */
}
bool my_touchpad_read(lv_indev_drv_t * indev_driver, lv_indev_data_t * data)
{
uint16_t touchX, touchY;
bool touched = tft.getTouch(&touchX, &touchY, 600);
if(!touched)
{
return false;
}
if(touchX>screenWidth || touchY > screenHeight)
{
Serial.println("Y or y outside of expected parameters..");
Serial.print("y:");
Serial.print(touchX);
Serial.print(" x:");
Serial.print(touchY);
}
else
{
data->state = touched ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
data->point.x = touchX;
data->point.y = touchY;
}
return false; /*Return `false` because we are not buffering and no more data to read*/
}
void setup() {
Serial.begin(115200);
xTaskCreate(guiTask,
"gui",
4096*2,
NULL,
2,
NULL);
networkScanner();
}
void networkScanner(){
vTaskDelay(500);
xTaskCreate(scanWIFITask,
"ScanWIFITask",
4096,
NULL,
1,
&ntScanTaskHandler);
}
void loop() {}
void guiTask(void *pvParameters) {
lv_init();
tft.begin();
tft.setRotation(2);
uint16_t calData[5] = { 295, 3493, 320, 3602, 2 };
tft.setTouch(calData);
lv_disp_buf_init(&disp_buf, buf, NULL, LV_HOR_RES_MAX * LV_VER_RES_MAX / 10);
lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv);
disp_drv.hor_res = screenWidth;
disp_drv.ver_res = screenHeight;
disp_drv.flush_cb = my_disp_flush;
disp_drv.buffer = &disp_buf;
lv_disp_drv_register(&disp_drv);
lv_indev_drv_t indev_drv;
lv_indev_drv_init(&indev_drv); /*Descriptor of a input device driver*/
indev_drv.type = LV_INDEV_TYPE_POINTER; /*Touch pad is a pointer-like device*/
indev_drv.read_cb = my_touchpad_read; /*Set your driver function*/
lv_indev_drv_register(&indev_drv); /*Finally register the driver*/
lv_main();
while (1) {
lv_task_handler();
}
}
static void lv_main(){
//LV_THEME_MATERIAL_FLAG_LIGHT
//LV_THEME_MATERIAL_FLAG_DARK
lv_theme_t * th = lv_theme_material_init(LV_THEME_DEFAULT_COLOR_PRIMARY, LV_THEME_DEFAULT_COLOR_SECONDARY, LV_THEME_MATERIAL_FLAG_LIGHT, LV_THEME_DEFAULT_FONT_SMALL , LV_THEME_DEFAULT_FONT_NORMAL, LV_THEME_DEFAULT_FONT_SUBTITLE, LV_THEME_DEFAULT_FONT_TITLE);
lv_theme_set_act(th);
lv_obj_t * scr = lv_obj_create(NULL, NULL);
lv_scr_load(scr);
bg_top = lv_obj_create(scr, NULL);
lv_obj_clean_style_list(bg_top, LV_OBJ_PART_MAIN);
lv_obj_set_style_local_bg_opa(bg_top, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_OPA_COVER);
lv_obj_set_style_local_bg_color(bg_top, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_COLOR_NAVY);
lv_obj_set_size(bg_top, LV_HOR_RES, 50);
bg_middle = lv_obj_create(scr, NULL);
lv_obj_clean_style_list(bg_middle, LV_OBJ_PART_MAIN);
lv_obj_set_style_local_bg_opa(bg_middle, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_OPA_COVER);
lv_obj_set_style_local_bg_color(bg_middle, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_COLOR_WHITE);
lv_obj_set_pos(bg_middle, 0, 50);
lv_obj_set_size(bg_middle, LV_HOR_RES, 400);
bg_bottom = lv_obj_create(scr, NULL);
lv_obj_clean_style_list(bg_bottom, LV_OBJ_PART_MAIN);
lv_obj_set_style_local_bg_opa(bg_bottom, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_OPA_COVER);
lv_obj_set_style_local_bg_color(bg_bottom, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,LV_COLOR_ORANGE);
lv_obj_set_pos(bg_bottom, 0, 450);
lv_obj_set_size(bg_bottom, LV_HOR_RES, 30);
label_status = lv_label_create(bg_bottom, NULL);
lv_label_set_long_mode(label_status, LV_LABEL_LONG_SROLL_CIRC);
lv_obj_set_width(label_status, LV_HOR_RES - 20);
lv_label_set_text(label_status, "");
lv_obj_align(label_status, NULL, LV_ALIGN_CENTER, 0, 0);
makeDropDownList();
makeGaugeIndicator();
makeKeyboard();
makePWMsgBox();
}
static void updateBottomStatus(lv_color_t color, String text){
lv_obj_set_style_local_bg_color(bg_bottom, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT,color);
lv_label_set_text(label_status, text.c_str());
}
static void makeDropDownList(void){
ddlist = lv_dropdown_create(bg_top, NULL);
lv_dropdown_set_show_selected(ddlist, false);
lv_dropdown_set_text(ddlist, "WIFI");
lv_dropdown_set_options(ddlist, "...Searching...");
lv_obj_align(ddlist, NULL, LV_ALIGN_IN_TOP_LEFT, 4, 8);
lv_obj_set_event_cb(ddlist, dd_event_handler);
}
static void dd_event_handler(lv_obj_t * obj, lv_event_t event){
if(event == LV_EVENT_VALUE_CHANGED) {
char buf[32];
lv_dropdown_get_selected_str(obj, buf, sizeof(buf));
ssidName = String(buf);
for (int i = 0; i < ssidName.length()-1; i++) {
if (ssidName.substring(i, i+2) == " (") {
ssidName = ssidName.substring(0, i);
break;
}
}
popupPWMsgBox();
}
}
static void makeGaugeIndicator(void){
gauge = lv_gauge_create(bg_middle, NULL);
lv_obj_set_size(gauge, 200, 200);
lv_obj_align(gauge, NULL, LV_ALIGN_CENTER, 0, 0);
lv_gauge_set_value(gauge, 0, 100);
lv_obj_t * label = lv_label_create(gauge, NULL);
lv_obj_align(label, gauge, LV_ALIGN_CENTER, 0, 70);
lv_obj_set_style_local_text_font(label, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_theme_get_font_title());
setGaugeValue(100, 0);
}
static void setGaugeValue(float prev, float curt){
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, gauge);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)gauge_anim);
lv_anim_set_values(&a, prev, curt);
lv_anim_set_time(&a, 1000);
lv_anim_set_repeat_count(&a, 0);
lv_anim_start(&a);
}
static void gauge_anim(lv_obj_t * gauge, lv_anim_value_t value){
lv_gauge_set_value(gauge, 0, value);
static char buf[64];
lv_snprintf(buf, sizeof(buf), "%d ms", value);
lv_obj_t * label = lv_obj_get_child(gauge, NULL);
lv_label_set_text(label, buf);
lv_obj_align(label, gauge, LV_ALIGN_CENTER, 0, 70);
}
static void makeKeyboard(){
kb = lv_keyboard_create(lv_scr_act(), NULL);
lv_obj_set_size(kb, LV_HOR_RES, LV_VER_RES / 2);
lv_keyboard_set_cursor_manage(kb, true);
lv_keyboard_set_textarea(kb, ta_password);
lv_obj_set_event_cb(kb, keyboard_event_cb);
lv_obj_move_background(kb);
}
static void keyboard_event_cb(lv_obj_t * kb, lv_event_t event){
lv_keyboard_def_event_cb(kb, event);
if(event == LV_EVENT_APPLY){
lv_obj_move_background(kb);
}else if(event == LV_EVENT_CANCEL){
lv_obj_move_background(kb);
}
}
static void makePWMsgBox(){
mbox_connect = lv_msgbox_create(lv_scr_act(), NULL);
static const char * btns[] ={"Connect", "Cancel", ""};
ta_password = lv_textarea_create(mbox_connect, NULL);
lv_obj_set_size(ta_password, 200, 40);
lv_textarea_set_text(ta_password, "");
lv_msgbox_add_btns(mbox_connect, btns);
lv_obj_set_width(mbox_connect, 200);
lv_obj_set_event_cb(mbox_connect, mbox_event_handler);
lv_obj_align(mbox_connect, NULL, LV_ALIGN_CENTER, 0, -90);
lv_obj_move_background(mbox_connect);
}
static void mbox_event_handler(lv_obj_t * obj, lv_event_t event){
if(event == LV_EVENT_VALUE_CHANGED) {
lv_obj_move_background(kb);
lv_obj_move_background(mbox_connect);
if(strcmp(lv_msgbox_get_active_btn_text(obj), "Connect")==0){
password = lv_textarea_get_text(ta_password);
password.trim();
connectWIFI();
}
}
}
static void popupPWMsgBox(){
if(ssidName == NULL || ssidName.length() == 0){
return;
}
lv_textarea_set_text(ta_password, "");
lv_msgbox_set_text(mbox_connect, ssidName.c_str());
lv_obj_move_foreground(mbox_connect);
lv_obj_move_foreground(kb);
lv_keyboard_set_textarea(kb, ta_password);
}
/*
* NETWORK TASKS
*/
void scanWIFITask(void *pvParameters) {
vTaskDelay(1000);
while (1) {
updateBottomStatus(LV_COLOR_ORANGE, "::: Searching Available WIFI :::");
int n = WiFi.scanNetworks();
if (n <= 0) {
updateBottomStatus(LV_COLOR_RED, "Sorry no networks found!");
}else{
lv_dropdown_clear_options(ddlist);
vTaskDelay(10);
for (int i = 0; i < n; ++i) {
String item = WiFi.SSID(i) + " (" + WiFi.RSSI(i) +") " + ((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?" ":"*");
lv_dropdown_add_option(ddlist,item.c_str(),LV_DROPDOWN_POS_LAST);
vTaskDelay(10);
}
updateBottomStatus(LV_COLOR_GREEN, String(n) + " networks found!");
}
vTaskDelay(30000);
}
}
void connectWIFI(){
if(ssidName == NULL || ssidName.length() <1 || password == NULL || password.length() <1){
return;
}
vTaskDelete(ntScanTaskHandler);
vTaskDelay(500);
xTaskCreate(beginWIFITask,
"BeginWIFITask",
2048,
NULL,
0,
&ntConnectTaskHandler);
}
void beginWIFITask(void *pvParameters) {
updateBottomStatus(LV_COLOR_TEAL,"Connecting WIFI: " + ssidName);
unsigned long startingTime = millis();
WiFi.begin(ssidName.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED && (millis() - startingTime) < timeout)
{
vTaskDelay(250);
}
if(WiFi.status() != WL_CONNECTED) {
updateBottomStatus(LV_COLOR_RED, "Please check your wifi password and try again.");
vTaskDelay(2500);
networkScanner();
vTaskDelete(NULL);
}
updateBottomStatus(LV_COLOR_GREEN, "WIFI is Connected! Local IP: " + WiFi.localIP().toString());
if(Ping.ping(remote_host)) {
updateBottomStatus(LV_COLOR_GRAY, ">>> Check the network latency. Ping to " + String(remote_host));
float prev = 0;
float totalPing = 0;
for(int i=0; i<pingCount; i++){
Ping.ping(remote_host, 1);
float avgTime = Ping.averageTime();
if(avgTime <=0){
i--;
continue;
}
totalPing += avgTime;
setGaugeValue(prev, avgTime);
prev = avgTime;
vTaskDelay(1000);
}
float totalAvg = totalPing / pingCount;
setGaugeValue(prev, totalAvg);
updateBottomStatus(LV_COLOR_BLACK, "The average delay time is " + String(totalAvg) + " ms.");
vTaskDelay(4000);
setGaugeValue(totalAvg, 0);
}else{
updateBottomStatus(LV_COLOR_RED, "This WIFI you choose is not connected. Please select one of them again.");
}
networkScanner();
vTaskDelete(NULL);
}
the error massage is to long