Merge branch 'master' into dev

Dev

CYD-Klipper/.vscode/settings.json

@@ -8,6 +8,7 @@
         "unordered_set": "cpp",
         "vector": "cpp",
         "string_view": "cpp",
-        "initializer_list": "cpp"
+        "initializer_list": "cpp",
+        "algorithm": "cpp"
     }
 }

CYD-Klipper/platformio.ini

@@ -18,7 +18,8 @@ lib_deps =
 	lvgl/lvgl@^8.3.9
 	https://github.com/Bodmer/TFT_eSPI.git
 	https://github.com/PaulStoffregen/XPT2046_Touchscreen.git
-	bblanchon/ArduinoJson@^6.21.3
+	bblanchon/ArduinoJson@^7.0.0
+monitor_filters = esp32_exception_decoder
 build_flags = 
 	-DLV_CONF_PATH="../../../../src/conf/lv_conf.h"
 	-DUSER_SETUP_LOADED=1

CYD-Klipper/src/conf/global_config.cpp

@@ -5,13 +5,13 @@
 GLOBAL_CONFIG global_config = {0};
 
 COLOR_DEF color_defs[] = {
-    {LV_PALETTE_BLUE, LV_PALETTE_RED},
+    {LV_PALETTE_BLUE, 0, LV_PALETTE_RED},
-    {LV_PALETTE_GREEN, LV_PALETTE_PURPLE},
+    {LV_PALETTE_LIME, -2, LV_PALETTE_PURPLE},
-    {LV_PALETTE_GREY, LV_PALETTE_CYAN},
+    {LV_PALETTE_GREY, 0, LV_PALETTE_CYAN},
-    {LV_PALETTE_YELLOW, LV_PALETTE_PINK},
+    {LV_PALETTE_YELLOW, -2, LV_PALETTE_PINK},
-    {LV_PALETTE_ORANGE, LV_PALETTE_BLUE},
+    {LV_PALETTE_ORANGE, -2, LV_PALETTE_BLUE},
-    {LV_PALETTE_RED, LV_PALETTE_GREEN},
+    {LV_PALETTE_RED, 0, LV_PALETTE_GREEN},
-    {LV_PALETTE_PURPLE, LV_PALETTE_GREY},
+    {LV_PALETTE_PURPLE, 0, LV_PALETTE_GREY},
 };
 
 void WriteGlobalConfig() {
@@ -41,6 +41,12 @@ void LoadGlobalConfig() {
     global_config.version = CONFIG_VERSION;
     global_config.brightness = 255;
     global_config.screenTimeout = 5;
+    global_config.hotend_presets[0] = 0;
+    global_config.hotend_presets[1] = 200;
+    global_config.hotend_presets[2] = 240;
+    global_config.bed_presets[0] = 0;
+    global_config.bed_presets[1] = 60;
+    global_config.bed_presets[2] = 70;
     VerifyVersion();
     Preferences preferences;
     preferences.begin("global_config", true);

CYD-Klipper/src/conf/global_config.h

@@ -3,16 +3,19 @@
 
 #include "lvgl.h"
 
-#define CONFIG_VERSION 2
+#define CONFIG_VERSION 3
 
 typedef struct _GLOBAL_CONFIG {
     unsigned char version;
     union {
         unsigned char raw;
         struct {
+            // Internal
             bool screenCalibrated : 1;
             bool wifiConfigured : 1;
             bool ipConfigured : 1;
+
+            // External
             bool lightMode : 1;
             bool invertColors : 1;
             bool rotateScreen : 1;
@@ -33,10 +36,14 @@ typedef struct _GLOBAL_CONFIG {
     unsigned char color_scheme;
     unsigned char brightness;
     unsigned char screenTimeout;
+
+    unsigned short hotend_presets[3];
+    unsigned short bed_presets[3];
 } GLOBAL_CONFIG;
     
 typedef struct _COLOR_DEF {
     lv_palette_t primary_color;
+    short primary_color_light;
     lv_palette_t secondary_color;
 } COLOR_DEF;
 

CYD-Klipper/src/core/data_setup.cpp

@@ -4,6 +4,8 @@
 #include "../conf/global_config.h"
 #include <HTTPClient.h>
 #include <ArduinoJson.h>
+#include <esp_task_wdt.h>
+#include "macros_query.h"
 
 const char *printer_state_messages[] = {
     "Error",
@@ -11,6 +13,33 @@ const char *printer_state_messages[] = {
     "Printing"};
 
 Printer printer = {0};
+int klipper_request_consecutive_fail_count = 0;
+char filename_buff[512] = {0};
+SemaphoreHandle_t freezeRenderThreadSemaphore, freezeRequestThreadSemaphore;
+const long data_update_interval = 780;
+
+void semaphore_init(){
+    freezeRenderThreadSemaphore = xSemaphoreCreateMutex();
+    freezeRequestThreadSemaphore = xSemaphoreCreateMutex();
+    xSemaphoreGive(freezeRenderThreadSemaphore);
+    xSemaphoreGive(freezeRequestThreadSemaphore);
+}
+
+void freeze_request_thread(){
+    xSemaphoreTake(freezeRequestThreadSemaphore, portMAX_DELAY);
+}
+
+void unfreeze_request_thread(){
+    xSemaphoreGive(freezeRequestThreadSemaphore);
+}
+
+void freeze_render_thread(){
+    xSemaphoreTake(freezeRenderThreadSemaphore, portMAX_DELAY);
+}
+
+void unfreeze_render_thread(){
+    xSemaphoreGive(freezeRenderThreadSemaphore);
+}
 
 void send_gcode(bool wait, const char *gcode)
 {
@@ -34,23 +63,27 @@ void send_gcode(bool wait, const char *gcode)
     }
 }
 
-char filename_buff[512] = {0};
-
 void fetch_printer_data()
 {
+    freeze_request_thread();
     char buff[256] = {};
     sprintf(buff, "http://%s:%d/printer/objects/query?extruder&heater_bed&toolhead&gcode_move&virtual_sdcard&print_stats&webhooks", global_config.klipperHost, global_config.klipperPort);
     HTTPClient client;
+    client.useHTTP10(true);
     client.begin(buff);
     int httpCode = client.GET();
+    delay(10);
     if (httpCode == 200)
     {
-        String payload = client.getString();
+        klipper_request_consecutive_fail_count = 0;
-        DynamicJsonDocument doc(4096);
+        JsonDocument doc;
-        deserializeJson(doc, payload);
+        deserializeJson(doc, client.getStream());
         auto status = doc["result"]["status"];
         bool emit_state_update = false;
         int printer_state = printer.state;
+        delay(10);
+        unfreeze_request_thread();
+        freeze_render_thread();
 
         if (status.containsKey("webhooks"))
         {
@@ -155,28 +188,41 @@ void fetch_printer_data()
             printer.state = printer_state;
             lv_msg_send(DATA_PRINTER_STATE, &printer);
         }
+
+        unfreeze_render_thread();
     }
     else
     {
+        klipper_request_consecutive_fail_count++;
         Serial.printf("Failed to fetch printer data: %d\n", httpCode);
+        unfreeze_request_thread();
     }
 }
 
-long last_data_update = 0;
-const long data_update_interval = 1500;
-
 void data_loop()
 {
-    if (millis() - last_data_update < data_update_interval)
+    // Causes other threads that are trying to lock the thread to actually lock it
-        return;
+    unfreeze_render_thread();
-
+    delay(1);
-    last_data_update = millis();
+    freeze_render_thread();
-
-    fetch_printer_data();
 }
 
+void data_loop_background(void * param){
+    esp_task_wdt_init(10, true);
+    while (true){
+        delay(data_update_interval);
+        fetch_printer_data();
+    }
+}
+
+TaskHandle_t background_loop;
+
 void data_setup()
 {
+    semaphore_init();
     printer.print_filename = filename_buff;
     fetch_printer_data();
+    macros_query_setup();
+    freeze_render_thread();
+    xTaskCreatePinnedToCore(data_loop_background, "data_loop_background", 5000, NULL, 0, &background_loop, 0);
 }

CYD-Klipper/src/core/data_setup.h

@@ -28,10 +28,15 @@ typedef struct _Printer {
 } Printer;
 
 extern Printer printer;
+extern int klipper_request_consecutive_fail_count;
 
 #define DATA_PRINTER_STATE 1
 #define DATA_PRINTER_DATA 2
+#define DATA_PRINTER_TEMP_PRESET 3
 
 void data_loop();
 void data_setup();
 void send_gcode(bool wait, const char* gcode);
+
+void freeze_request_thread();
+void unfreeze_request_thread();

CYD-Klipper/src/core/files_query.cpp

@@ -1,6 +1,7 @@
 #include <list>
 #include "files_query.h"
 #include "../conf/global_config.h"
+#include "data_setup.h"
 #include <HTTPClient.h>
 #include <ArduinoJson.h>
 #include <HardwareSerial.h>
@@ -8,7 +9,9 @@
 // Always has +1 entry with a null'd name
 FILESYSTEM_FILE* last_query = NULL;
 
-FILESYSTEM_FILE* get_files(){
+FILESYSTEM_FILE* get_files(int limit){
+    freeze_request_thread();
+
     if (last_query != NULL){
         FILESYSTEM_FILE* current = last_query;
 
@@ -20,37 +23,76 @@ FILESYSTEM_FILE* get_files(){
         free(last_query);
     }
 
+    Serial.printf("Heap space pre-file-parse: %d bytes\n", esp_get_free_heap_size());
     std::list<FILESYSTEM_FILE> files;
+
+    auto timer_request = millis();
     char buff[256] = {};
     sprintf(buff, "http://%s:%d/server/files/list", global_config.klipperHost, global_config.klipperPort);
     HTTPClient client;
+    client.useHTTP10(true);
     client.begin(buff);
     int httpCode = client.GET();
-    int count = 0;
+    auto timer_parse = millis();
+
     if (httpCode == 200){
-        String payload = client.getString();
+        JsonDocument doc;
-        DynamicJsonDocument doc(60000);
+        auto parseResult = deserializeJson(doc, client.getStream());
-        auto a = deserializeJson(doc, payload);
+        Serial.printf("Json parse: %s\n", parseResult.c_str());
-        Serial.printf("JSON PARSE: %s\n", a.c_str());
         auto result = doc["result"].as<JsonArray>();
+
         for (auto file : result){
             FILESYSTEM_FILE f = {0};
             const char* path = file["path"];
-            f.name = (char*)malloc(strlen(path) + 1);
+            float modified = file["modified"];
-            strcpy(f.name, path);
+            auto file_iter = files.begin();
-            f.modified = file["modified"];
+
-            files.push_back(f);
+            while (file_iter != files.end()){
-            count++;
+                if ((*file_iter).modified < modified)
-        }
+                    break;
+
+                file_iter++;
             }
             
-    //Serial.printf("Found %d files\n", count);
+            // Little inefficient as it always allocates a string, even if it doesn't have to
-    files.sort([](FILESYSTEM_FILE a, FILESYSTEM_FILE b){return a.modified < b.modified;});
+            f.name = (char*)malloc(strlen(path) + 1);
-    files.reverse(); // TODO: Reverse is unneeded here, we can iterate backwards
+            if (f.name == NULL){
+                Serial.println("Failed to allocate memory");
+                continue;
+            }
+            strcpy(f.name, path);
+            f.modified = modified;
+
+            if (file_iter != files.end())
+                files.insert(file_iter, f);
+            else 
+                files.push_back(f);
+
+            if (files.size() > limit){
+                auto last_entry = files.back();
+
+                if (last_entry.name != NULL)
+                    free(last_entry.name);
+
+                files.pop_back();
+            }
+        }
+    }
 
     size_t size = sizeof(FILESYSTEM_FILE) * (files.size() + 1);
     FILESYSTEM_FILE* result = (FILESYSTEM_FILE*)malloc(size);
-    //Serial.printf("Allocated %d bytes\n", size);
+
+    if (result == NULL){
+        Serial.println("Failed to allocate memory");
+
+        for (auto file : files){
+            free(file.name);
+        }
+
+        unfreeze_request_thread();
+        return NULL;
+    }
+
     last_query = result;
     result[files.size()].name = NULL;
 
@@ -59,5 +101,8 @@ FILESYSTEM_FILE* get_files(){
         result += 1;
     }
 
+    Serial.printf("Heap space post-file-parse: %d bytes\n", esp_get_free_heap_size());
+    Serial.printf("Got %d files. Request took %dms, parsing took %dms\n", files.size(), timer_parse - timer_request, millis() - timer_parse);
+    unfreeze_request_thread();
     return last_query;
 }

CYD-Klipper/src/core/files_query.h

@@ -19,4 +19,4 @@ typedef struct _FILESYSTEM_FILE {
     float modified;
 } FILESYSTEM_FILE;
 
-FILESYSTEM_FILE* get_files();
+FILESYSTEM_FILE* get_files(int limit);

CYD-Klipper/src/core/macros_query.cpp

@@ -0,0 +1,51 @@
+#include "lvgl.h"
+#include "macros_query.h"
+#include "./data_setup.h"
+#include <HTTPClient.h>
+#include "../conf/global_config.h"
+#include <ArduinoJson.h>
+
+static char* macros[64] = {0};
+static int macros_count = 0;
+
+static void on_state_change(void * s, lv_msg_t * m) {
+    if (printer.state == PRINTER_STATE_ERROR || printer.state == PRINTER_STATE_PAUSED){
+        return;
+    }
+
+    String url = "http://" + String(global_config.klipperHost) + ":" + String(global_config.klipperPort) + "/printer/gcode/help";
+    HTTPClient client;
+    client.useHTTP10(true);
+    client.begin(url.c_str());
+    int httpCode = client.GET();
+    if (httpCode == 200){
+        JsonDocument doc;
+        deserializeJson(doc, client.getStream());
+        auto result = doc["result"].as<JsonObject>();
+
+        for (int i = 0; i < macros_count; i++){
+            free(macros[i]);
+        }
+
+        macros_count = 0;
+
+        for (JsonPair i : result){
+            const char *key = i.key().c_str();
+            const char *value = i.value().as<String>().c_str();
+            if (strcmp(value, "CYD_SCREEN_MACRO") == 0) {
+                char* macro = (char*)malloc(strlen(key) + 1);
+                strcpy(macro, key);
+                macros[macros_count++] = macro;
+            }
+        }
+    }
+}
+
+MACROSQUERY macros_query() {
+    return {(const char**)macros, macros_count};
+}
+
+void macros_query_setup(){
+    lv_msg_subscribe(DATA_PRINTER_STATE, on_state_change, NULL);
+    on_state_change(NULL, NULL);
+}

CYD-Klipper/src/core/macros_query.h

@@ -0,0 +1,9 @@
+#pragma once
+
+typedef struct {
+    const char** macros;
+    uint32_t count;
+} MACROSQUERY;
+
+MACROSQUERY macros_query();
+void macros_query_setup();

CYD-Klipper/src/core/screen_driver.cpp

@@ -84,7 +84,11 @@ void touchscreen_calibrate(bool force)
 
 void screen_setBrightness(byte brightness)
 {
-    analogWrite(TFT_BL, brightness);
+    // calculate duty, 4095 from 2 ^ 12 - 1
+    uint32_t duty = (4095 / 255) * brightness;
+
+    // write duty to LEDC
+    ledcWrite(0, duty);
 }
 
 void set_screen_brightness()
@@ -100,12 +104,20 @@ void screen_timer_wake()
     lv_timer_reset(screenSleepTimer);
     isScreenInSleep = false;
     set_screen_brightness();
+
+    // Reset cpu freq
+    setCpuFrequencyMhz(CPU_FREQ_HIGH);
+    Serial.printf("CPU Speed: %d MHz\n", ESP.getCpuFreqMHz());
 }
 
 void screen_timer_sleep(lv_timer_t *timer)
 {
     screen_setBrightness(0);
     isScreenInSleep = true;
+
+    // Screen is off, no need to make the cpu run fast, the user won't notice ;)
+    setCpuFrequencyMhz(CPU_FREQ_LOW);
+    Serial.printf("CPU Speed: %d MHz\n", ESP.getCpuFreqMHz());
 }
 
 void screen_timer_setup()
@@ -175,7 +187,20 @@ void screen_lv_touchRead(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
 
 void set_color_scheme(){
     lv_disp_t *dispp = lv_disp_get_default();
-    lv_theme_t *theme = lv_theme_default_init(dispp, lv_palette_main(color_defs[global_config.color_scheme].primary_color), lv_palette_main(color_defs[global_config.color_scheme].secondary_color), !global_config.lightMode, LV_FONT_DEFAULT);
+    lv_color_t main_color = {0};
+    COLOR_DEF color_def = color_defs[global_config.color_scheme];
+
+    if (color_defs[global_config.color_scheme].primary_color_light > 0){
+        main_color = lv_palette_lighten(color_def.primary_color, color_def.primary_color_light);
+    }
+    else if (color_defs[global_config.color_scheme].primary_color_light < 0) {
+        main_color = lv_palette_darken(color_def.primary_color, color_def.primary_color_light * -1);
+    }
+    else {
+        main_color = lv_palette_main(color_defs[global_config.color_scheme].primary_color);
+    }
+
+    lv_theme_t *theme = lv_theme_default_init(dispp, main_color, lv_palette_main(color_def.secondary_color), !global_config.lightMode, LV_FONT_DEFAULT);
     lv_disp_set_theme(dispp, theme);
 }
 
@@ -192,6 +217,10 @@ void screen_setup()
     lv_init();
 
     tft.init();
+
+    ledcSetup(0, 5000, 12);
+    ledcAttachPin(21, 0);
+
     tft.setRotation(global_config.rotateScreen ? 3 : 1);
     tft.fillScreen(TFT_BLACK);
     set_screen_brightness();

CYD-Klipper/src/core/screen_driver.h

@@ -4,6 +4,9 @@
 #ifndef _SCREEN_DRIVER_INIT
 #define _SCREEN_DRIVER_INIT
 
+#define CPU_FREQ_HIGH 240
+#define CPU_FREQ_LOW 80
+
 #include <XPT2046_Touchscreen.h>
 #include <TFT_eSPI.h>
 

CYD-Klipper/src/main.cpp

@@ -25,37 +25,16 @@ void setup() {
     Serial.println("Screen init done");
     
     wifi_init();
-    ip_setup();
+    ip_init();
     data_setup();
 
     nav_style_setup();
     main_ui_setup();
-
-    
-    
-    /*
-    lv_obj_clean(lv_scr_act());
-    
-    lv_obj_t * label;
-
-    lv_obj_t * btn1 = lv_btn_create(lv_scr_act());
-    lv_obj_add_event_cb(btn1, event_handler, LV_EVENT_CLICKED, NULL);
-    lv_obj_align(btn1, LV_ALIGN_CENTER, 0, 0);
-
-    label = lv_label_create(btn1);
-    lv_label_set_text(label, "Reset Configuration");
-    lv_obj_center(label);
-
-    lv_obj_t * slider = lv_slider_create(lv_scr_act());
-    lv_obj_set_width(slider, 200);
-    lv_obj_align(slider, LV_ALIGN_CENTER, 0, 40);
-    lv_slider_set_range(slider, 0, 100);
-    lv_slider_set_value(slider, 50, LV_ANIM_OFF);
-    */
 }
 
 void loop(){
     wifi_ok();
+    ip_ok();
     data_loop();
     lv_timer_handler();
     lv_task_handler();

CYD-Klipper/src/ui/ip_setup.cpp

@@ -3,18 +3,22 @@
 #include "lvgl.h"
 #include <TFT_eSPI.h>
 #include <HTTPClient.h>
+#include "core/data_setup.h"
 
 bool connect_ok = false;
 lv_obj_t * ipEntry;
 lv_obj_t * portEntry;
 lv_obj_t * label = NULL;
 
+void ip_init_inner();
+
 bool verify_ip(){
     HTTPClient client;
     String url = "http://" + String(global_config.klipperHost) + ":" + String(global_config.klipperPort) + "/printer/info";
     int httpCode;
     try {
         Serial.println(url);
+        client.setTimeout(500);
         client.begin(url.c_str());
         httpCode = client.GET();
         return httpCode == 200;
@@ -42,8 +46,8 @@ static void ta_event_cb(lv_event_t * e) {
     {
         strcpy(global_config.klipperHost, lv_textarea_get_text(ipEntry));
         global_config.klipperPort = atoi(lv_textarea_get_text(portEntry));
-        bool result = verify_ip();
+
-        if (result)
+        if (verify_ip())
         {
             global_config.ipConfigured = true;
             WriteGlobalConfig();
@@ -56,9 +60,33 @@ static void ta_event_cb(lv_event_t * e) {
     }
 }
 
-void ip_setup_inner(){
+static void reset_btn_event_handler(lv_event_t * e){
+    lv_event_code_t code = lv_event_get_code(e);
+
+    if(code == LV_EVENT_CLICKED) {
+        global_config.ipConfigured = false;
+        ip_init_inner();
+    }
+}
+
+void ip_init_inner(){
     lv_obj_clean(lv_scr_act());
 
+    if (global_config.ipConfigured) {
+        label = lv_label_create(lv_scr_act());
+        lv_label_set_text(label, "Connecting to Klipper");
+        lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
+
+        lv_obj_t * resetBtn = lv_btn_create(lv_scr_act());
+        lv_obj_add_event_cb(resetBtn, reset_btn_event_handler, LV_EVENT_ALL, NULL);
+        lv_obj_align(resetBtn, LV_ALIGN_CENTER, 0, 40);
+
+        lv_obj_t * btnLabel = lv_label_create(resetBtn);
+        lv_label_set_text(btnLabel, "Reset");
+        lv_obj_center(btnLabel);
+        return;
+    }
+
     lv_obj_t * keyboard = lv_keyboard_create(lv_scr_act());
     label = lv_label_create(lv_scr_act());
     lv_label_set_text(label, "Enter Klipper IP and Port");
@@ -84,18 +112,37 @@ void ip_setup_inner(){
     lv_keyboard_set_textarea(keyboard, ipEntry);
 }
 
-void ip_setup(){
+long last_data_update_ip = -10000;
+const long data_update_interval_ip = 10000;
+int retry_count = 0;
+
+void ip_init(){
     connect_ok = false;
+    retry_count = 0;
 
-    if (global_config.ipConfigured && verify_ip()){
+    ip_init_inner();
-        return;
-    }
-
-    ip_setup_inner();
 
     while (!connect_ok)
     {
         lv_timer_handler();
         lv_task_handler();
+
+        if (!connect_ok && global_config.ipConfigured && (millis() - last_data_update_ip) > data_update_interval_ip){
+            connect_ok = verify_ip();
+            last_data_update_ip = millis();
+            retry_count++;
+            String retry_count_text = "Connecting to Klipper (Try " + String(retry_count + 1) + ")";
+            lv_label_set_text(label, retry_count_text.c_str());
+        }
+    }
+}
+
+void ip_ok(){
+    if (klipper_request_consecutive_fail_count > 5){
+        freeze_request_thread();
+        ip_init();
+        unfreeze_request_thread();
+        klipper_request_consecutive_fail_count = 0;
+        lv_msg_send(DATA_PRINTER_STATE, &printer);
     }
 }

CYD-Klipper/src/ui/ip_setup.h

@@ -1 +1,2 @@
-void ip_setup();
+void ip_init();
+void ip_ok();

CYD-Klipper/src/ui/nav_buttons.cpp

@@ -71,6 +71,10 @@ static void btn_click_settings(lv_event_t * e){
     nav_buttons_setup(3);
 }
 
+static void btn_click_macros(lv_event_t * e){
+    nav_buttons_setup(4);
+}
+
 void nav_buttons_setup(unsigned char active_panel){
     lv_obj_clean(lv_scr_act());
     lv_obj_clear_flag(lv_scr_act(), LV_OBJ_FLAG_SCROLLABLE);
@@ -140,14 +144,14 @@ void nav_buttons_setup(unsigned char active_panel){
     lv_obj_set_size(btn, button_width, button_height);
     lv_obj_align(btn, LV_ALIGN_TOP_LEFT, 0, button_height * 3);
     lv_obj_add_style(btn, &nav_button_style, 0);
-    lv_obj_add_event_cb(btn, btn_click_settings, LV_EVENT_CLICKED, NULL);
+    lv_obj_add_event_cb(btn, btn_click_macros, LV_EVENT_CLICKED, NULL);
 
     label = lv_label_create(btn);
-    lv_label_set_text(label, LV_SYMBOL_SETTINGS);
+    lv_label_set_text(label, LV_SYMBOL_GPS);
     lv_obj_align(label, LV_ALIGN_CENTER, 0, -1 * icon_text_spacing);
 
     label = lv_label_create(btn);
-    lv_label_set_text(label, "Screen");
+    lv_label_set_text(label, "Macro");
     lv_obj_align(label, LV_ALIGN_CENTER, 0, icon_text_spacing);
     lv_obj_add_style(label, &nav_button_text_style, 0);
 
@@ -171,6 +175,9 @@ void nav_buttons_setup(unsigned char active_panel){
         case 3:
             settings_panel_init(panel);
             break;
+        case 4:
+            macros_panel_init(panel);
+            break;
     }
 }
 

CYD-Klipper/src/ui/panels/macros_panel.cpp

@@ -0,0 +1,81 @@
+#include "lvgl.h"
+#include "panel.h"
+#include "../nav_buttons.h"
+#include "../../core/data_setup.h"
+#include "../../core/macros_query.h"
+#include <HardwareSerial.h>
+
+int y_offset_macros = 40;
+const int y_element_size = 50;
+const int y_seperator_size = 1;
+const int y_seperator_x_padding = 50;
+const int panel_width = TFT_HEIGHT - 40;
+const int y_element_x_padding = 30;
+const static lv_point_t line_points[] = { {0, 0}, {panel_width - y_seperator_x_padding, 0} };
+
+static void btn_press(lv_event_t * e){
+    lv_obj_t * btn = lv_event_get_target(e);
+    const char* macro = (const char*)lv_event_get_user_data(e);
+    Serial.printf("Macro: %s\n", macro);
+    send_gcode(false, macro);
+}
+
+static void btn_goto_settings(lv_event_t * e){
+    nav_buttons_setup(3);
+}
+
+void create_macro_widget(const char* macro, lv_obj_t* root_panel){
+    lv_obj_t * panel = lv_obj_create(root_panel);
+    lv_obj_set_style_border_width(panel, 0, 0);
+    lv_obj_set_style_bg_opa(panel, LV_OPA_TRANSP, 0);
+    lv_obj_set_style_pad_all(panel, 0, 0);
+    lv_obj_align(panel, LV_ALIGN_TOP_MID, 0, y_offset_macros);
+    lv_obj_set_size(panel, panel_width - y_element_x_padding, y_element_size);
+
+    lv_obj_t * line = lv_line_create(panel);
+    lv_line_set_points(line, line_points, 2);
+    lv_obj_set_style_line_width(line, y_seperator_size, 0);
+    lv_obj_set_style_line_color(line, lv_color_hex(0xAAAAAA), 0);
+    lv_obj_align(line, LV_ALIGN_BOTTOM_MID, 0, 0);
+
+    lv_obj_t * label = lv_label_create(panel);
+    lv_label_set_text(label, macro);
+    lv_obj_align(label, LV_ALIGN_LEFT_MID, 0, 0);
+    lv_label_set_long_mode(label, LV_LABEL_LONG_SCROLL_CIRCULAR);
+    lv_obj_set_width(label, (TFT_HEIGHT - 40) * 0.75f);
+
+    lv_obj_t * btn = lv_btn_create(panel);
+    lv_obj_align(btn, LV_ALIGN_RIGHT_MID, 0, 0);
+    lv_obj_add_event_cb(btn, btn_press, LV_EVENT_CLICKED, (void*)macro);
+
+    label = lv_label_create(btn);
+    lv_label_set_text(label, "Run");
+    lv_obj_center(label);
+
+    y_offset_macros += y_element_size;
+}
+
+void macros_panel_init(lv_obj_t* panel) {
+    y_offset_macros = 40;
+
+    lv_obj_t * btn = lv_btn_create(panel);
+    lv_obj_add_event_cb(btn, btn_goto_settings, LV_EVENT_CLICKED, NULL);
+    lv_obj_set_size(btn, TFT_HEIGHT - 40 - 20, 30);
+    lv_obj_align(btn, LV_ALIGN_TOP_MID, 0, 5);
+
+    lv_obj_t * label = lv_label_create(btn);
+    lv_label_set_text(label, LV_SYMBOL_SETTINGS " Screen Settings");
+    lv_obj_center(label);
+
+    MACROSQUERY query = macros_query();
+    if (query.count == 0){
+        label = lv_label_create(panel);
+        lv_label_set_text(label, "No macros found.\nMacros with the description\n\"CYD_SCREEN_MACRO\"\nwill show up here.");
+        lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
+        return;
+    }
+
+    for (int i = 0; i < query.count; i++){
+        create_macro_widget(query.macros[i], panel);
+    }
+}

CYD-Klipper/src/ui/panels/panel.h

@@ -7,3 +7,4 @@ void temp_panel_init(lv_obj_t* panel);
 void print_panel_init(lv_obj_t* panel);
 void move_panel_init(lv_obj_t* panel);
 void progress_panel_init(lv_obj_t* panel);
+void macros_panel_init(lv_obj_t* panel);

CYD-Klipper/src/ui/panels/print_panel.cpp

@@ -12,8 +12,27 @@ static void btn_print_file(lv_event_t * e){
     lv_obj_t * panel = (lv_obj_t*)lv_event_get_user_data(e);
     lv_obj_del(panel);
 
-    char* buff = (char*)malloc(128 + strlen(selected_file->name));
+    char* buff = (char*)malloc(128 + (strlen(selected_file->name) * 3));
-    sprintf(buff, "http://%s:%d/printer/print/start?filename=%s", global_config.klipperHost, global_config.klipperPort, selected_file->name);
+    sprintf(buff, "http://%s:%d/printer/print/start?filename=", global_config.klipperHost, global_config.klipperPort);
+
+    char* ptr = buff + strlen(buff);
+    int filename_length = strlen(selected_file->name);
+    for (int i = 0; i < filename_length; i++){
+        char c = selected_file->name[i];
+        if (c == ' '){
+            *ptr = '%';
+            ptr++;
+            *ptr = '2';
+            ptr++;
+            *ptr = '0';
+        } else {
+            *ptr = c;
+        }
+        ptr++;
+    }
+
+    *ptr = 0;
+
     HTTPClient client;
     client.begin(buff);
     int httpCode = client.POST("");
@@ -76,13 +95,20 @@ void print_panel_init(lv_obj_t* panel){
     lv_obj_set_size(list, panel_width_margin, panel_height_margin);
     lv_obj_align(list, LV_ALIGN_CENTER, 0, 0);
 
-    FILESYSTEM_FILE* files = get_files();
+    FILESYSTEM_FILE* files = get_files(25);
     int count = 0;
-    while (files->name != NULL && count <= 20){
+    while (files != NULL && files->name != NULL && count <= 20){
         lv_obj_t * btn = lv_list_add_btn(list, LV_SYMBOL_FILE, files->name);
         lv_obj_add_event_cb(btn, btn_print_file_verify, LV_EVENT_CLICKED, (void*)files);
 
         files += 1;
         count++;
     }
+
+    if (count <= 0){
+        lv_obj_del(list);
+        lv_obj_t * label = lv_label_create(panel);
+        lv_label_set_text(label, "Failed to read files.");
+        lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
+    }
 }

CYD-Klipper/src/ui/panels/temp_panel.cpp

@@ -1,25 +1,70 @@
 #include "lvgl.h"
-#include "panel.h"
 #include "../../core/data_setup.h"
+#include "../../conf/global_config.h"
 #include <HardwareSerial.h>
 
-// False: Hotend, True: Bed
+enum temp_target{
-static bool hotend_or_bed = true;
+    TARGET_HOTEND,
+    TARGET_BED,
+    TARGET_HOTEND_CONFIG_1,
+    TARGET_HOTEND_CONFIG_2,
+    TARGET_HOTEND_CONFIG_3,
+    TARGET_BED_CONFIG_1,
+    TARGET_BED_CONFIG_2,
+    TARGET_BED_CONFIG_3,
+};
+
+static temp_target keyboard_target;
 static char hotend_buff[40];
 static char bed_buff[40];
+static bool edit_mode = false;
+lv_obj_t* root_panel;
 
 static void update_printer_data_hotend_temp(lv_event_t * e){
     lv_obj_t * label = lv_event_get_target(e);
-    sprintf(hotend_buff, "Hotend: %.0f C\nTarget: %.0f C", printer.extruder_temp, printer.extruder_target_temp);
+    sprintf(hotend_buff, "Hotend: %.0f C (Target: %.0f C)", printer.extruder_temp, printer.extruder_target_temp);
     lv_label_set_text(label, hotend_buff);
 }
 
 static void update_printer_data_bed_temp(lv_event_t * e){
     lv_obj_t * label = lv_event_get_target(e);
-    sprintf(bed_buff, "Bed: %.0f C\nTarget: %.0f C", printer.bed_temp, printer.bed_target_temp);
+    sprintf(bed_buff, "Bed: %.0f C (Target: %.0f C)", printer.bed_temp, printer.bed_target_temp);
     lv_label_set_text(label, bed_buff);
 }
 
+static short get_temp_preset(int target){
+    switch (target){
+        case TARGET_HOTEND_CONFIG_1:
+            return global_config.hotend_presets[0];
+        case TARGET_HOTEND_CONFIG_2:
+            return global_config.hotend_presets[1];
+        case TARGET_HOTEND_CONFIG_3:
+            return global_config.hotend_presets[2];
+        case TARGET_BED_CONFIG_1:
+            return global_config.bed_presets[0];
+        case TARGET_BED_CONFIG_2:
+            return global_config.bed_presets[1];
+        case TARGET_BED_CONFIG_3:
+            return global_config.bed_presets[2];
+        default:
+            return -1;
+    }
+}
+
+static void update_temp_preset_label(lv_event_t * e){
+    lv_obj_t * label = lv_event_get_target(e);
+    int target = static_cast<int>(reinterpret_cast<intptr_t>(lv_event_get_user_data(e)));
+    short value = get_temp_preset(target);
+
+    String text_label = String(value) + " C";
+    lv_label_set_text(label, text_label.c_str());
+}
+
+void UpdateConfig(){
+    WriteGlobalConfig();
+    lv_msg_send(DATA_PRINTER_TEMP_PRESET, &printer);
+}
+
 static void keyboard_callback(lv_event_t * e){
     lv_event_code_t code = lv_event_get_code(e);
     lv_obj_t * ta = lv_event_get_target(e);
@@ -33,17 +78,43 @@ static void keyboard_callback(lv_event_t * e){
             return;
         }
 
-        Serial.printf("%d %s %d\n", hotend_or_bed, text, temp);
         char gcode[64];
         const char* space = "%20";
         
-        if (hotend_or_bed){
+        switch (keyboard_target){
-            sprintf(gcode, "M140%sS%d", space, temp);
+            case TARGET_HOTEND:
-        } else {
                 sprintf(gcode, "M104%sS%d", space, temp);
-        }
-
                 send_gcode(true, gcode);
+                break;
+            case TARGET_BED:
+                sprintf(gcode, "M140%sS%d", space, temp);
+                send_gcode(true, gcode);
+                break;
+            case TARGET_HOTEND_CONFIG_1:
+                global_config.hotend_presets[0] = temp;
+                UpdateConfig();
+                break;
+            case TARGET_HOTEND_CONFIG_2:
+                global_config.hotend_presets[1] = temp;
+                UpdateConfig();
+                break;
+            case TARGET_HOTEND_CONFIG_3:
+                global_config.hotend_presets[2] = temp;
+                UpdateConfig();
+                break;
+            case TARGET_BED_CONFIG_1:
+                global_config.bed_presets[0] = temp;
+                UpdateConfig();
+                break;
+            case TARGET_BED_CONFIG_2:
+                global_config.bed_presets[1] = temp;
+                UpdateConfig();
+                break;
+            case TARGET_BED_CONFIG_3:
+                global_config.bed_presets[2] = temp;
+                UpdateConfig();
+                break;
+        }
     }
 
     if(code == LV_EVENT_DEFOCUSED || code == LV_EVENT_CANCEL || code == LV_EVENT_READY) {
@@ -54,14 +125,14 @@ static void keyboard_callback(lv_event_t * e){
 }
 
 static void show_keyboard(lv_event_t * e){
-    lv_obj_t * panel = (lv_obj_t *)lv_event_get_user_data(e);
+    lv_obj_t * keyboard = lv_keyboard_create(root_panel);
-    lv_obj_t * keyboard = lv_keyboard_create(panel);
+    lv_obj_t * ta = lv_textarea_create(root_panel);
-    lv_obj_t * ta = lv_textarea_create(panel);
+    lv_obj_set_size(ta, TFT_HEIGHT - 40, 120);
-    lv_obj_set_size(ta, 100, 30);
+    lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 0);
-    lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 40);
     lv_textarea_set_max_length(ta, 3);
-    lv_textarea_set_one_line(ta, true);
+    //lv_textarea_set_one_line(ta, true);
     lv_textarea_set_text(ta, "");
+    lv_textarea_set_align(ta, LV_TEXT_ALIGN_CENTER);
     lv_obj_add_event_cb(ta, keyboard_callback, LV_EVENT_ALL, keyboard);
 
     lv_keyboard_set_mode(keyboard, LV_KEYBOARD_MODE_NUMBER);
@@ -69,12 +140,12 @@ static void show_keyboard(lv_event_t * e){
 }
 
 static void show_keyboard_with_hotend(lv_event_t * e){
-    hotend_or_bed = false;
+    keyboard_target = TARGET_HOTEND;
     show_keyboard(e);
 }
 
 static void show_keyboard_with_bed(lv_event_t * e){
-    hotend_or_bed = true;
+    keyboard_target = TARGET_BED;
     show_keyboard(e);
 }
 
@@ -96,6 +167,32 @@ static void btn_extrude(lv_event_t * e){
     send_gcode(true, "G1%20E25%20F300");
 }
 
+static void set_temp_via_preset(lv_event_t * e){
+    int target = static_cast<int>(reinterpret_cast<intptr_t>(lv_event_get_user_data(e)));
+    int value = get_temp_preset(target);
+
+    if (edit_mode) {
+        keyboard_target = (temp_target)target;
+        show_keyboard(e);
+        return;
+    }
+
+    char gcode[64];
+    const char* space = "%20";
+    if (target <= TARGET_HOTEND_CONFIG_3)
+        sprintf(gcode, "M104%sS%d", space, value);
+    else 
+        sprintf(gcode, "M140%sS%d", space, value);
+    
+    send_gcode(true, gcode);
+}
+
+static void btn_toggleable_edit(lv_event_t * e){
+    lv_obj_t * btn = lv_event_get_target(e);
+    auto state = lv_obj_get_state(btn);
+    edit_mode = (state & LV_STATE_CHECKED == LV_STATE_CHECKED);
+}
+
 static void btn_retract(lv_event_t * e){
     if (printer.state == PRINTER_STATE_PRINTING){
         return;
@@ -106,47 +203,91 @@ static void btn_retract(lv_event_t * e){
 }
 
 void temp_panel_init(lv_obj_t* panel){
+    root_panel = panel;
+    edit_mode = false;
+    const int btn_row_y_one = 30;
+    const int btn_row_y_two = 100;
     auto panel_width = TFT_HEIGHT - 40;
     lv_obj_t * label = lv_label_create(panel);
-    lv_label_set_text(label, "Hotend");
+    lv_label_set_text(label, "???");
     lv_obj_align(label, LV_ALIGN_TOP_LEFT, 10, 10);
     lv_obj_add_event_cb(label, update_printer_data_hotend_temp, LV_EVENT_MSG_RECEIVED, NULL);
     lv_msg_subscribe_obj(DATA_PRINTER_DATA, label, NULL);
 
     label = lv_label_create(panel);
-    lv_label_set_text(label, "Bed");
+    lv_label_set_text(label, "???");
-    lv_obj_align(label, LV_ALIGN_TOP_LEFT, 10, 50);
+    lv_obj_align(label, LV_ALIGN_TOP_LEFT, 10, 80);
     lv_obj_add_event_cb(label, update_printer_data_bed_temp, LV_EVENT_MSG_RECEIVED, NULL);
     lv_msg_subscribe_obj(DATA_PRINTER_DATA, label, NULL);
 
     lv_obj_t * btn = lv_btn_create(panel);
-    lv_obj_align(btn, LV_ALIGN_TOP_RIGHT, -10, 10);
+    lv_obj_align(btn, LV_ALIGN_TOP_RIGHT, -10, btn_row_y_one);
     lv_obj_add_event_cb(btn, show_keyboard_with_hotend, LV_EVENT_CLICKED, panel);
+    lv_obj_set_width(btn, panel_width / 4 - 10);
 
     label = lv_label_create(btn);
     lv_label_set_text(label, "Set");
     lv_obj_center(label);
 
     btn = lv_btn_create(panel);
-    lv_obj_align(btn, LV_ALIGN_TOP_RIGHT, -10, 50);
+    lv_obj_align(btn, LV_ALIGN_TOP_RIGHT, -10, btn_row_y_two);
     lv_obj_add_event_cb(btn, show_keyboard_with_bed, LV_EVENT_CLICKED, panel);
+    lv_obj_set_width(btn, panel_width / 4 - 10);
 
     label = lv_label_create(btn);
     lv_label_set_text(label, "Set");
     lv_obj_center(label);
 
+    // Presets
+    for (int i = 0; i < 3; i++){
+        int x_pos = 10 + (panel_width / 4) * i - (3 * i);
+
         btn = lv_btn_create(panel);
-    lv_obj_align(btn, LV_ALIGN_TOP_MID, 0, 90);
+        lv_obj_align(btn, LV_ALIGN_TOP_LEFT, x_pos, btn_row_y_one);
+        lv_obj_add_event_cb(btn, set_temp_via_preset, LV_EVENT_CLICKED, reinterpret_cast<void*>(TARGET_HOTEND_CONFIG_1 + i));
+        lv_obj_set_width(btn, panel_width / 4 - 10);
+
+        label = lv_label_create(btn);
+        lv_label_set_text(label, "???");
+        lv_obj_center(label);
+        lv_obj_add_event_cb(label, update_temp_preset_label, LV_EVENT_MSG_RECEIVED, reinterpret_cast<void*>(TARGET_HOTEND_CONFIG_1 + i));
+        lv_msg_subscribe_obj(DATA_PRINTER_TEMP_PRESET, label, NULL);
+
+        btn = lv_btn_create(panel);
+        lv_obj_align(btn, LV_ALIGN_TOP_LEFT, x_pos, btn_row_y_two);
+        lv_obj_add_event_cb(btn, set_temp_via_preset, LV_EVENT_CLICKED, reinterpret_cast<void*>(TARGET_BED_CONFIG_1 + i));
+        lv_obj_set_width(btn, panel_width / 4 - 10);
+
+        label = lv_label_create(btn);
+        lv_label_set_text(label, "???");
+        lv_obj_center(label);
+        lv_obj_add_event_cb(label, update_temp_preset_label, LV_EVENT_MSG_RECEIVED, reinterpret_cast<void*>(TARGET_BED_CONFIG_1 + i));
+        lv_msg_subscribe_obj(DATA_PRINTER_TEMP_PRESET, label, NULL);
+    }
+
+    btn = lv_btn_create(panel);
+    lv_obj_align(btn, LV_ALIGN_BOTTOM_LEFT, 10, -50);
+    lv_obj_set_size(btn, panel_width / 2 - 15, 40);
     lv_obj_add_event_cb(btn, cooldown_temp, LV_EVENT_CLICKED, panel);
 
     label = lv_label_create(btn);
     lv_label_set_text(label, "Cooldown");
     lv_obj_center(label);
 
+    btn = lv_btn_create(panel);
+    lv_obj_align(btn, LV_ALIGN_BOTTOM_RIGHT, -10, -50);
+    lv_obj_add_event_cb(btn, btn_toggleable_edit, LV_EVENT_CLICKED, NULL);
+    lv_obj_add_flag(btn, LV_OBJ_FLAG_CHECKABLE);
+    lv_obj_set_size(btn, panel_width / 2 - 15, 40);
+
+    label = lv_label_create(btn);
+    lv_label_set_text(label, "Edit Presets");
+    lv_obj_center(label);
+
     btn = lv_btn_create(panel);
     lv_obj_align(btn, LV_ALIGN_BOTTOM_LEFT, 10, -5);
     lv_obj_add_event_cb(btn, btn_extrude, LV_EVENT_CLICKED, NULL);
-    lv_obj_set_size(btn, panel_width / 2 - 15, 30);
+    lv_obj_set_size(btn, panel_width / 2 - 15, 40);
 
     label = lv_label_create(btn);
     lv_label_set_text(label, LV_SYMBOL_DOWN " Extrude");
@@ -155,11 +296,12 @@ void temp_panel_init(lv_obj_t* panel){
     btn = lv_btn_create(panel);
     lv_obj_align(btn, LV_ALIGN_BOTTOM_RIGHT, -10, -5);
     lv_obj_add_event_cb(btn, btn_retract, LV_EVENT_CLICKED, NULL);
-    lv_obj_set_size(btn, panel_width / 2 - 15, 30);
+    lv_obj_set_size(btn, panel_width / 2 - 15, 40);
 
     label = lv_label_create(btn);
     lv_label_set_text(label, LV_SYMBOL_UP " Retract");
     lv_obj_center(label);
 
     lv_msg_send(DATA_PRINTER_DATA, &printer);
+    lv_msg_send(DATA_PRINTER_TEMP_PRESET, &printer);
 }

CYD-Klipper/src/ui/wifi_setup.cpp

@@ -77,12 +77,11 @@ static void wifi_btn_event_handler(lv_event_t * e){
 
 void wifi_init_inner(){
     WiFi.disconnect();
+    lv_obj_clean(lv_scr_act());
 
     if (global_config.wifiConfigured){
         WiFi.begin(global_config.wifiSSID, global_config.wifiPassword);
         
-        lv_obj_clean(lv_scr_act());
-
         lv_obj_t * label = lv_label_create(lv_scr_act());
         lv_label_set_text(label, "Connecting to WiFi");
         lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
@@ -98,8 +97,6 @@ void wifi_init_inner(){
         return;
     } 
 
-    lv_obj_clean(lv_scr_act());
-
     lv_obj_t * label = lv_label_create(lv_scr_act());
     lv_label_set_text(label, "Scanning for networks...");
     lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
@@ -108,8 +105,6 @@ void wifi_init_inner(){
     lv_task_handler();
     lv_refr_now(NULL);
 
-    int n = WiFi.scanNetworks();
-
     lv_obj_clean(lv_scr_act());
 
     lv_obj_t * refreshBtn = lv_btn_create(lv_scr_act());
@@ -128,25 +123,50 @@ void wifi_init_inner(){
     lv_obj_align(list, LV_ALIGN_TOP_LEFT, 10, 40);
     lv_obj_set_size(list, TFT_HEIGHT - 20, TFT_WIDTH - 40 - 5);
 
-    for (int i = 0; i < n; ++i) {
+    int n = WiFi.scanNetworks();
-        const char* ssid = WiFi.SSID(i).c_str();
-        int len = strlen(ssid);
 
-        if (len == 0)
+    for (int i = 0; i < n; ++i) {
+        String ssid = WiFi.SSID(i);
+        char* ssid_copy = (char*)malloc(ssid.length() + 1);
+        int j = 0;
+
+        for (; j < ssid.length(); ++j){
+            if (ssid[j] == '\0')
                 continue;
 
-        const char* ssid_copy = (const char*)malloc(len + 1);
+            ssid_copy[j] = ssid[j];
-        strcpy((char*)ssid_copy, ssid);
+        }
+
+        ssid_copy[j] = '\0';
+
         lv_obj_t * btn = lv_list_add_btn(list, LV_SYMBOL_WIFI, ssid_copy);
         lv_obj_add_event_cb(btn, wifi_btn_event_handler, LV_EVENT_ALL, (void*)ssid_copy);
     }
 }
 
+const char* errs[] = {
+    "Idle",
+    "No SSID Available",
+    "Scan Completed",
+    "Connected",
+    "Connection Failed",
+    "Connection Lost",
+    "Disconnected"
+};
+
+const int print_freq = 1000;
+int print_timer = 0;
+
 void wifi_init(){
     WiFi.mode(WIFI_STA);
     wifi_init_inner();
 
     while (!global_config.wifiConfigured || WiFi.status() != WL_CONNECTED){
+        if (millis() - print_timer > print_freq){
+            print_timer = millis();
+            Serial.printf("WiFi Status: %s\n", errs[WiFi.status()]);
+        }
+        
         lv_timer_handler();
         lv_task_handler();
     }

README.md

@@ -2,7 +2,7 @@
 [![Donations](https://img.shields.io/badge/Support%20on-Ko--Fi-red)](https://ko-fi.com/suchmememanyskill)
 
 # CYD-Klipper
-An implementation of a Klipper status display on an ESP32 + screen. Uses Moonraker to fetch data.
+An implementation of a wireless Klipper status display on an ESP32 + screen. Uses Moonraker to fetch data.
 
 A simple and cheap solution to use a dedicated screen with Klipper, a 3d printing Firmware.
 
@@ -19,6 +19,7 @@ A ESP32-2432S028R is required to run this project. You can find out where to buy
 - Move the printer
 - Manage temperature
 - Extrude/Retract filament
+- Execute predefined gcode macros
 
 ### Install
 

_site/index.html

@@ -22,6 +22,7 @@
     <p>An implementation of a Klipper status display on an ESP32 + screen.<br>Uses Moonraker to fetch data.</p>
     <img alt="GitHub release (with filter)" src="https://img.shields.io/github/v/release/suchmememanyskill/CYD-Klipper">
     <a href="https://github.com/suchmememanyskill/CYD-Klipper"><img alt="GitHub repo" src="https://img.shields.io/badge/Source-Github-blue.svg"></a>
+    <a href="https://ko-fi.com/suchmememanyskill"><img alt="Donate KoFi" src="https://img.shields.io/badge/Support%2FDonate%20On-Ko%20Fi-red"></a>
     <section class="install">
       <h3>Install</h3>
       <p>Note: You may need to hold the 'BOOT' button on the device while pressing install</p>