Merge branch 'v2'

CMakeLists.txt

@@ -31,6 +31,8 @@ add_executable(zavlaha
     src/screens/screen_kompenzace_tlaku.c
     src/screens/screen_program_prehled.c
     src/screens/screen_program_edit.c
+    src/screens/screen_suche_dny.c
+    src/screens/screen_manual_control.c
     src/app_io.c
     src/app_config.c)
 

README.md

@@ -0,0 +1,3 @@
+
+kompilovano s SDK ver 3352ccf5de3a704e74355f72aa61143fb36cfec9
+

src/app_config.c

@@ -9,10 +9,10 @@
 
 #define APPCONFIG_EE_BASE_ADDR 0
 
-// TODO sensible defaults, loading and saving to/from EE
 struct AppConfig app_config;
 
 static const struct AppConfig DEFAULTS = {
+        .magic_version = APPCONFIG_MAGIC1,
         .circuit_base_time_s = 300, // for a test
         .circuit_time_percent = {100, 100, 100, 100}, // for a test
         .scheduler_enable = true,
@@ -26,6 +26,8 @@ static const struct AppConfig DEFAULTS = {
         .moisture_dry = 2800,
         .moisture_wet = 1600,
         .moisture_threshold_percent = 70,
+        .magic2 = APPCONFIG_MAGIC2,
+        .scheduler_dry_days = 0,
 };
 
 static void load_fallback_config() {
@@ -36,7 +38,7 @@ static void load_fallback_config() {
 void appconfig_load()
 {
     uint8_t magic = 0;
-    if (0 > ee_read(APPCONFIG_EE_BASE_ADDR, &magic, 1) || magic != APPCONFIG_VERSION) {
+    if (0 > ee_read(APPCONFIG_EE_BASE_ADDR, &magic, 1) || magic != APPCONFIG_MAGIC1) {
         printf("Couldn't read EE to check magic!\r\n");
         load_fallback_config();
         return;
@@ -45,6 +47,12 @@ void appconfig_load()
     if (0 > ee_read(APPCONFIG_EE_BASE_ADDR, (uint8_t *) &app_config, APPCONFIG_SIZE)) {
         printf("Couldn't read EE to load config!\r\n");
         load_fallback_config();
+        return;
+    }
+
+    if (app_config.magic2 != APPCONFIG_MAGIC2) {
+        app_config.magic2 = APPCONFIG_MAGIC2;
+        app_config.scheduler_dry_days = 0;
     }
 }
 
@@ -53,7 +61,8 @@ void appconfig_save()
 //    printf("PERSISTENCE DISABLED - NOT SAVING\r\n");
 //    return; // FIXME - when all GUIs are finished, add persistence
     // whatever, just write everything
-    app_config.magic_version = APPCONFIG_VERSION;
+    app_config.magic_version = APPCONFIG_MAGIC1;
+    app_config.magic2 = APPCONFIG_MAGIC2;
     if (0 > ee_write(APPCONFIG_EE_BASE_ADDR, (const uint8_t *) &app_config, APPCONFIG_SIZE)) {
         printf("Couldn't write EE!");
     }

src/app_config.h

@@ -13,26 +13,29 @@
 #define MENU_AUTOEXIT_TIME_S 120
 
 struct  __attribute__((packed)) ScheduleTime {
-  bool enable;
+  bool enable; /// True if the schedule time is enabled
-  uint8_t h;
+  uint8_t h; /// Hour
-  uint8_t m;
+  uint8_t m; /// Minute
 };
 
 struct  __attribute__((packed)) AppConfig {
-  uint8_t magic_version;
+  uint8_t magic_version; /// Magic (byte reserved)
-  uint16_t circuit_base_time_s;
+  uint16_t circuit_base_time_s; /// Base time for each branch (scaled by percent)
-  uint16_t circuit_time_percent[CIRCUIT_COUNT]; // 0% can be used to disable a branch
+  uint16_t circuit_time_percent[CIRCUIT_COUNT]; /// Relative time of each branch 0% can be used to disable a branch
-  bool scheduler_enable;
+  bool scheduler_enable; /// Enable automatic watering
-  struct ScheduleTime schedules[SCHEDULE_COUNT];
+  struct ScheduleTime schedules[SCHEDULE_COUNT]; /// Scheduled times in a day
-  bool moisture_enable;
+  bool moisture_enable;  /// Enable blocking watering by high soil humidity
-  uint16_t moisture_dry;
+  uint16_t moisture_dry; /// Saved humidity value as 0%
-  uint16_t moisture_wet;
+  uint16_t moisture_wet; /// Saved humidity value as 100%
-  uint8_t moisture_threshold_percent;
+  uint8_t moisture_threshold_percent; /// % of soil humidity that deactivates watering
+  uint8_t magic2;
+  uint8_t scheduler_dry_days; /// Days to skip between watering
 };
 
 #define APPCONFIG_SIZE sizeof(struct AppConfig)
 
-#define APPCONFIG_VERSION 0b11100001
+#define APPCONFIG_MAGIC1 0b11100001
+#define APPCONFIG_MAGIC2 0b00111001
 
 extern struct AppConfig app_config;
 

src/app_io.c

@@ -9,21 +9,29 @@
 #include "pinout.h"
 #include "app_config.h"
 
-
 void set_relays(bool one, bool two, bool three, bool four)
 {
     gpio_put(PIN_RE1, one);
     gpio_put(PIN_RE2, two);
     gpio_put(PIN_RE3, three);
-    gpio_put(PIN_RE1, four);
+    gpio_put(PIN_RE4, four);
 }
 
 void open_valve(uint8_t num)
 {
-    gpio_put(PIN_RE1, num == 1);
+    set_relays(num == 1, num == 2, num == 3, num == 4);
-    gpio_put(PIN_RE2, num == 2);
+}
-    gpio_put(PIN_RE3, num == 3);
+
-    gpio_put(PIN_RE4, num == 4);
+void set_one_relay(uint8_t num, bool on)
+{
+    if (num < 1 || num > 4) {
+        return;
+    }
+
+    if (num == 1) { gpio_put(PIN_RE1, on); }
+    if (num == 2) { gpio_put(PIN_RE2, on); }
+    if (num == 3) { gpio_put(PIN_RE3, on); }
+    if (num == 4) { gpio_put(PIN_RE4, on); }
 }
 
 uint16_t moisture_read()

src/app_io.h

@@ -13,6 +13,8 @@ void set_relays(bool one, bool two, bool three, bool four);
 /** Open valve, 1,2,3,4; 0=close all */
 void open_valve(uint8_t num);
 
+void set_one_relay(uint8_t num, bool on);
+
 uint16_t moisture_read();
 
 uint16_t moisture_convert(uint16_t moisture);

src/ds_rtc.c

@@ -1,5 +1,5 @@
 /**
- * TODO file description
+ * Functions to access the RTC (DS3231)
  */
 
 #include <pico/stdlib.h>
@@ -35,11 +35,13 @@ static int rtc_write(uint8_t start, const uint8_t *data, size_t len) {
 
 int rtc_get_time(struct rtc_time *dest) {
     int rv;
-    uint8_t buf[3];
+    uint8_t buf[4];
-    TRY(rtc_read(0x00, buf, 3));
+    TRY(rtc_read(0x00, buf, 4));
 
     dest->second = (buf[0] & 15) + (buf[0] >> 4) * 10;
     dest->minute = (buf[1] & 15) + (buf[1] >> 4) * 10;
+    dest->weekday = buf[3] & 7;
+    if (dest->weekday > 0) dest->weekday -= 1; // Normalize to 0-6, with failsafe in case we got zero, should not happen.
 
     if (buf[2] & 0x40) {
         // 12h time?
@@ -60,5 +62,6 @@ int rtc_set_time(const struct rtc_time *time) {
     buf[2] = (time->hour % 10) + ((time->hour / 10) << 4);
 
     TRY(rtc_write(0x00, buf, 3));
+    // just let the week counter go on its own - we only care about it incrementing
     return 0;
 }

src/ds_rtc.h

@@ -10,6 +10,7 @@ struct rtc_time {
   uint8_t hour;
   uint8_t minute;
   uint8_t second;
+  uint8_t weekday; // 0-6, We use this as a counter for dry days
 };
 
 int rtc_get_time(struct rtc_time *dest);

src/screens/app_gui.c

@@ -28,12 +28,54 @@ static void draw_common_overlay();
 //stratch string buffer
 char sbuf[100];
 
-void gui_read_moisture() {
+void gui_read_moisture()
+{
     s_app.moisture_pt = moisture_convert(s_app.moisture_raw = moisture_read());
 }
 
-static void read_time_and_moisture() {
+/**
+ * Get days remaining to next watering day
+ *
+ * @return
+ */
+uint8_t days_to_next_watering()
+{
+    if (app_config.scheduler_dry_days == 0) {
+        return 0;
+    }
+
+    uint8_t wd = s_app.rtc_time.weekday;
+    uint8_t last_wd = s_app.last_watering_day_wd;
+    uint8_t normalized_next = (last_wd + 1 + app_config.scheduler_dry_days) % 7;
+    if (wd > normalized_next) {
+        normalized_next += 7;
+    }
+    return normalized_next - wd;
+}
+
+static void read_time_and_moisture()
+{
+    uint8_t prev_wd = s_app.rtc_time.weekday;
     rtc_get_time(&s_app.rtc_time); // now is a good time to update timestamp - we could just increment it though
+
+    // decide if today is a watering day
+    if (app_config.scheduler_dry_days == 0) {
+        s_app.today_is_watering_day = true;
+        s_app.last_watering_day_wd = s_app.rtc_time.weekday;
+    } else {
+        uint8_t cur_wd = s_app.rtc_time.weekday;
+        if (cur_wd != prev_wd) {
+            // Weekday change, decide now
+            s_app.today_is_watering_day = false;
+            uint8_t now_normalized = cur_wd + (cur_wd < s_app.last_watering_day_wd ? 7 : 0);
+            uint8_t elapsed_days = now_normalized - s_app.last_watering_day_wd;
+            if (elapsed_days >= app_config.scheduler_dry_days) {
+                s_app.today_is_watering_day = true;
+                s_app.last_watering_day_wd = cur_wd;
+            }
+        }
+    }
+
     gui_read_moisture();
 }
 
@@ -44,11 +86,19 @@ void gui_init()
 
     read_time_and_moisture();
 
+    s_app.today_is_watering_day = true;
+    s_app.last_watering_day_wd = s_app.rtc_time.weekday;
+
     LcdBuffer_Init(&lcd, CGROM_A00, CGRAM_CZ);
 }
 
 static bool blink_state = 0;
 
+bool is_valve_control_screen()
+{
+    return s_app.screen == screen_cyklus || s_app.screen == screen_manual_control;
+}
+
 void gui_loop_iter(GuiEvent message)
 {
     uint32_t tickNow = timestamp_ms();
@@ -56,7 +106,7 @@ void gui_loop_iter(GuiEvent message)
     // Time program logic - since this runs very often, we are guaranteed not to miss a cycle - unless there is a power outage
     // exactly in the scheduled watering time
 
-    if (s_app.screen != screen_cyklus && app_config.scheduler_enable) {
+    if (!is_valve_control_screen() && app_config.scheduler_enable && (s_app.today_is_watering_day || app_config.scheduler_dry_days == 0)) { // if dry days=0, is_wd should always be true, but making sure here
         if (s_app.cycle_time_checking) {
             if (s_app.rtc_time.hour != s_app.last_cycle_time.hour
                 || s_app.rtc_time.minute != s_app.last_cycle_time.minute) {
@@ -88,12 +138,19 @@ void gui_loop_iter(GuiEvent message)
     }
 
     // screen auto-close
-    if (s_app.screen != screen_home && s_app.screen != screen_cyklus) {
+    if (s_app.screen != screen_home && !is_valve_control_screen()) {
         if ((tickNow - s_app.screen_open_time) >= (MENU_AUTOEXIT_TIME_S * 1000)) {
             switch_screen(screen_home, true);
         }
     }
 
+    // exit manual mode after long time
+    if (s_app.screen == screen_manual_control) {
+        if ((tickNow - s_app.screen_open_time) >= (3600 * 1000)) {
+            switch_screen(screen_home, true);
+        }
+    }
+
     // Read RTC every second
     if (tickNow - s_app.last_1s_time >= 1000) {
         s_app.screen(GUI_EVENT_SCREEN_TICK_1S);
@@ -154,13 +211,17 @@ void gui_loop_iter(GuiEvent message)
 
 /** Switch to a different screen handler.
  * If "init" is true, immediately call it with the init event. */
-void switch_screen(screen_t pScreen, bool init)
+static void switch_screen_ex(screen_t pScreen, bool init, bool deinit_current)
 {
     if (s_app.screen == pScreen) {
         // already, no op
         return;
     }
 
+    if (s_app.screen && deinit_current) {
+        s_app.screen(GUI_EVENT_SCREEN_DEINIT);
+    }
+
     s_app.screen_open_time = timestamp_ms();
     s_app.screen = pScreen;
 
@@ -178,6 +239,21 @@ void switch_screen(screen_t pScreen, bool init)
     }
 }
 
+void switch_screen(screen_t pScreen, bool init)
+{
+    switch_screen_ex(pScreen, init, true);
+}
+
+void switch_to_subscreen(screen_t pScreen)
+{
+    switch_screen_ex(pScreen, true, false);
+}
+
+void switch_to_parent_screen(screen_t pScreen)
+{
+    switch_screen_ex(pScreen, false, true);
+}
+
 /** Draw GUI common to all screens */
 static void draw_common_overlay()
 {

src/screens/app_gui.h

@@ -45,6 +45,9 @@ void gui_init();
  */
 void switch_screen(screen_t pScreen, bool init);
 
+void switch_to_subscreen(screen_t pScreen);
+void switch_to_parent_screen(screen_t pScreen);
+
 void request_paint();
 
 // prototypes for screen handlers
@@ -59,6 +62,10 @@ void screen_moisture_calib(GuiEvent event);
 void screen_delka_zalivky(GuiEvent event);
 void screen_kompenzace_tlaku(GuiEvent event);
 void screen_program_prehled(GuiEvent event);
+void screen_suche_dny(GuiEvent event);
+void screen_manual_control(GuiEvent event);
+
+uint8_t days_to_next_watering();
 
 extern int pgm_edit_slot;
 void screen_program_edit(GuiEvent event);
@@ -66,12 +73,13 @@ void screen_program_edit(GuiEvent event);
 
 void gui_read_moisture();
 
+// This is actually the global app state!
 struct State {
   struct rtc_time rtc_time;
   uint16_t moisture_raw;
   uint16_t moisture_pt;
   struct rtc_time last_cycle_time;
-  bool cycle_time_checking;
+  bool cycle_time_checking; // This is used to prevent cycle being started again and again during the same minute - it is cleared once the HH:MM time changes.
 
   /// Repaint was requested from the screen code
   bool paint_needed;
@@ -85,6 +93,9 @@ struct State {
 
 
   uint32_t screen_open_time;
+
+  bool today_is_watering_day;
+  uint8_t last_watering_day_wd;
 };
 
 extern struct State s_app;

src/screens/gui_event.h

@@ -13,6 +13,8 @@ typedef enum GuiEvent {
   GUI_EVENT_PAINT,
   /// Used as the argument when initing a screen
   GUI_EVENT_SCREEN_INIT,
+  /// Screen is about to close (this will NOT be called for middle pages when auto-closing a multi-level hierarchy!)
+  GUI_EVENT_SCREEN_DEINIT,
   /// Time tick, used to carry timing to the screen functions.
   /// This tick has 10ms interval
   GUI_EVENT_SCREEN_TICK_10MS,

src/screens/screen_cyklus.c

@@ -82,6 +82,10 @@ void screen_cyklus(GuiEvent event)
         case GUI_EVENT_KEY_D:
             end_cycle();
             switch_screen(screen_home, true);
-            return;
+            break;
+
+        case GUI_EVENT_SCREEN_DEINIT:
+            open_valve(0); // close all - this should not be needed here, this screen does not autoclose.
+            break;
     }
 }

src/screens/screen_delka_zalivky.c

@@ -38,12 +38,12 @@ void screen_delka_zalivky(GuiEvent event)
         case GUI_EVENT_KEY_A: // Confirm
             if (cursor > 0) {
                 settings_scratch.circuit_base_time_s = value;
-                switch_screen(screen_settings, false);
+                switch_to_parent_screen(screen_settings);
             }
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         default:

src/screens/screen_home.c

@@ -49,6 +49,7 @@ void screen_home(GuiEvent event)
             } else {
                 int found = -1;
                 int first = -1;
+                bool wrapped_around = false;
                 uint16_t m_now = s_app.rtc_time.hour * 60 + s_app.rtc_time.minute;
                 for (int i = 0; i < SCHEDULE_COUNT; i++) {
                     if (!app_config.schedules[i].enable) {
@@ -68,27 +69,37 @@ void screen_home(GuiEvent event)
 
                 if (found == -1) {
                     found = first;
+                    wrapped_around = true;
                 }
 
                 if (found == -1) {
-                    LcdBuffer_Write(&lcd, 1, 0, "Program nenastaven!");
+                    LcdBuffer_Write(&lcd, 1, 0, "Program nenastaven! ");
                 } else {
-                    snprintf(sbuf, sbuf_len, "Další závlaha %d:%02d  ",
+                    uint8_t days = days_to_next_watering();
-                            app_config.schedules[found].h, app_config.schedules[found].m);
+                    if (days > 0 && (!s_app.today_is_watering_day || wrapped_around)) {
+                        snprintf(sbuf, sbuf_len, "Další závlaha za %d d", days);
+                    } else {
+                        snprintf(sbuf, sbuf_len, "Další závlaha %d:%02d  ",
+                                 app_config.schedules[found].h, app_config.schedules[found].m);
+                    }
                     LcdBuffer_Write(&lcd, 1, 0, sbuf);
                 }
             }
 
             LcdBuffer_Write(&lcd, 2, 0, "🅰Spustit cyklus");
-            LcdBuffer_Write(&lcd, 3, 0, "🅱Nastavení");
+            LcdBuffer_Write(&lcd, 3, 0, "🅱Nastavení 🅳Test");
             break;
 
         case GUI_EVENT_KEY_A:
-            switch_screen(screen_cyklus, true); // fake cycle
+            switch_screen(screen_cyklus, true); // manually started cycle
             break;
 
         case GUI_EVENT_KEY_B:
             switch_screen(screen_settings, true);
             break;
+
+        case GUI_EVENT_KEY_D:
+            switch_screen(screen_manual_control, true);
+            break;
     }
 }

src/screens/screen_kompenzace_tlaku.c

@@ -46,11 +46,11 @@ void screen_kompenzace_tlaku(GuiEvent event)
 
         case GUI_EVENT_KEY_A: // Confirm
             memcpy(settings_scratch.circuit_time_percent, ratios, sizeof(settings_scratch.circuit_time_percent));
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         case GUI_EVENT_KEY_1:

src/screens/screen_manual_control.c

@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include "app_gui.h"
+#include "gui_event.h"
+#include "app_io.h"
+#include "lcd.h"
+
+static int cur_valve = 0;
+
+void screen_manual_control(GuiEvent event)
+{
+    int num = 0;
+    switch (event) {
+        case GUI_EVENT_SCREEN_INIT:
+            open_valve(0); // make sure all are closed
+            cur_valve = 0;
+            break;
+
+        case GUI_EVENT_PAINT:
+            LcdBuffer_Write(&lcd, 0, 0, "== MANUÁLNÍ REŽIM ==");
+            LcdBuffer_Write(&lcd, 1, 0, "1-4 ventil,0 vyp.vše");
+
+            //LcdBuffer_SetCursor(&lcd, 2, 0, CURSOR_BOTH);
+
+            snprintf(sbuf, sbuf_len, "  %s %s %s %s  ",
+                     (cur_valve == 1) ? "█1█" : " 1 ",
+                     (cur_valve == 2) ? "█2█" : " 2 ",
+                     (cur_valve == 3) ? "█3█" : " 3 ",
+                     (cur_valve == 4) ? "█4█" : " 4 ");
+            LcdBuffer_Write(&lcd, 2, 0, sbuf);
+
+            LcdBuffer_Write(&lcd, 3, 0, "🅳Konec");
+            break;
+
+        case GUI_EVENT_KEY_D: // CANCEL
+            open_valve(0);
+            switch_screen(screen_home, true);
+            break;
+
+        case GUI_EVENT_KEY_0:
+            cur_valve = 0;
+            open_valve(0);
+            request_paint();
+            break;
+
+        case GUI_EVENT_KEY_1:
+        case GUI_EVENT_KEY_2:
+        case GUI_EVENT_KEY_3:
+        case GUI_EVENT_KEY_4:
+            num = (int) (event - '0');
+            if (cur_valve == num) {
+                cur_valve = 0;
+                open_valve(0);
+            } else {
+                cur_valve = num;
+                open_valve(num);
+            }
+            request_paint();
+            break;
+
+        case GUI_EVENT_SCREEN_DEINIT:
+            open_valve(0); // close all
+            break;
+    }
+}

src/screens/screen_moisture_calib.c

@@ -42,12 +42,12 @@ void screen_moisture_calib(GuiEvent event)
             } else {
                 settings_scratch.moisture_dry = sample_dry;
                 settings_scratch.moisture_wet = s_app.moisture_raw;
-                switch_screen(screen_settings, false);
+                switch_to_parent_screen(screen_settings);
             }
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
     }
 }

src/screens/screen_program_edit.c

@@ -42,7 +42,7 @@ void screen_program_edit(GuiEvent event)
         case GUI_EVENT_KEY_A: // Confirm
             if (!time.enable || cursor == 4) {
                 memcpy(&settings_scratch.schedules[pgm_edit_slot], &time, sizeof(time));
-                switch_screen(screen_program_prehled, false);
+                switch_to_parent_screen(screen_program_prehled);
             }
             break;
 
@@ -54,7 +54,7 @@ void screen_program_edit(GuiEvent event)
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_program_prehled, false);
+            switch_to_parent_screen(screen_program_prehled);
             break;
 
         default:

src/screens/screen_program_prehled.c

@@ -44,7 +44,7 @@ void screen_program_prehled(GuiEvent event)
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         case GUI_EVENT_KEY_1:
@@ -52,7 +52,7 @@ void screen_program_prehled(GuiEvent event)
         case GUI_EVENT_KEY_3:
         case GUI_EVENT_KEY_4:
             pgm_edit_slot = event - '1'; // 0-3
-            switch_screen(screen_program_edit, true);
+            switch_to_subscreen(screen_program_edit);
             break;
     }
 }

src/screens/screen_set_moisture_threshold.c

@@ -37,12 +37,12 @@ void screen_set_moisture_threshold(GuiEvent event)
         case GUI_EVENT_KEY_A: // Confirm
             if (cursor > 0) {
                 settings_scratch.moisture_threshold_percent = threshold;
-                switch_screen(screen_settings, false);
+                switch_to_parent_screen(screen_settings);
             }
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         default:

src/screens/screen_set_time.c

@@ -32,12 +32,12 @@ void screen_set_time(GuiEvent event)
         case GUI_EVENT_KEY_A: // Confirm
             if (cursor == 4) {
                 rtc_set_time(&time);
-                switch_screen(screen_settings, false);
+                switch_to_parent_screen(screen_settings);
             }
             break;
 
         case GUI_EVENT_KEY_D: // CANCEL
-            switch_screen(screen_settings, false);
+            switch_to_parent_screen(screen_settings);
             break;
 
         default:

src/screens/screen_settings.c

@@ -43,6 +43,8 @@ void screen_settings(GuiEvent event)
                 case 2:
                     LcdBuffer_Write(&lcd, 0, 0, "1. Délka zálivky");
                     LcdBuffer_Write(&lcd, 1, 0, "2. Kompenzace tlaku");
+                    snprintf(sbuf, sbuf_len, "3. Suché dny (%d)", settings_scratch.scheduler_dry_days);
+                    LcdBuffer_Write(&lcd, 2, 0, sbuf);
                     break;
 
                 case 3:
@@ -96,11 +98,11 @@ void screen_settings(GuiEvent event)
                             break;
 
                         case GUI_EVENT_KEY_2: // Upravit program
-                            switch_screen(screen_program_prehled, true);
+                            switch_to_subscreen(screen_program_prehled);
                             break;
 
                         case GUI_EVENT_KEY_3: // Nastavit cas
-                            switch_screen(screen_set_time, true);
+                            switch_to_subscreen(screen_set_time);
                             break;
                     }
                     break;
@@ -108,11 +110,15 @@ void screen_settings(GuiEvent event)
                 case 2:
                     switch (event) {
                         case GUI_EVENT_KEY_1: // Délka zálivky
-                            switch_screen(screen_delka_zalivky, true);
+                            switch_to_subscreen(screen_delka_zalivky);
                             break;
 
                         case GUI_EVENT_KEY_2: // Kompenzace tlaku
-                            switch_screen(screen_kompenzace_tlaku, true);
+                            switch_to_subscreen(screen_kompenzace_tlaku);
+                            break;
+
+                        case GUI_EVENT_KEY_3: // Nastavit suche dny
+                            switch_to_subscreen(screen_suche_dny);
                             break;
                     }
                     break;
@@ -125,11 +131,11 @@ void screen_settings(GuiEvent event)
                             break;
 
                         case GUI_EVENT_KEY_2: // Kalibrace vlhkomeru
-                            switch_screen(screen_moisture_calib, true);
+                            switch_to_subscreen(screen_moisture_calib);
                             break;
 
                         case GUI_EVENT_KEY_3: // Nastavit prah
-                            switch_screen(screen_set_moisture_threshold, true);
+                            switch_to_subscreen(screen_set_moisture_threshold);
                             break;
                     }
                     break;

src/screens/screen_suche_dny.c

@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include "app_gui.h"
+#include "gui_event.h"
+#include "app_io.h"
+#include "lcd.h"
+#include "app_config.h"
+
+static int value;
+
+void screen_suche_dny(GuiEvent event)
+{
+    switch (event) {
+        case GUI_EVENT_SCREEN_INIT:
+            value = settings_scratch.scheduler_dry_days;
+            break;
+
+        case GUI_EVENT_PAINT:
+            LcdBuffer_Write(&lcd, 0, 0, "Vynechat dny mezi");
+            LcdBuffer_Write(&lcd, 1, 0, "auto. zálivkou (0-5)");
+
+            LcdBuffer_SetCursor(&lcd, 2, 0, CURSOR_BOTH);
+
+            snprintf(sbuf, sbuf_len, "%d d", value);
+            LcdBuffer_Write(&lcd, 2, 0, sbuf);
+
+            LcdBuffer_Write(&lcd, 3, 0, "🅳Zrušit 🅰OK");
+            break;
+
+        case GUI_EVENT_KEY_A: // Confirm
+            settings_scratch.scheduler_dry_days = value;
+            switch_to_parent_screen(screen_settings);
+            break;
+
+        case GUI_EVENT_KEY_D: // CANCEL
+            switch_to_parent_screen(screen_settings);
+            break;
+
+        default:
+            if (event >= '0' && event <= '5') {
+                value = (uint8_t) (event - '0');
+                request_paint();
+            }
+    }
+}