Added setPanelDeepSleep function in all examples that uses deep sleep

Author: KarloLeksic

examples/Inkplate2/Advanced/DeepSleep/Inkplate2_RTC_Alarm_With_Deep_Sleep/Inkplate2_RTC_Alarm_With_Deep_Sleep.ino

@@ -162,6 +162,6 @@ void deepSleep()
     // Put the panel in the deep sleep
     display.setPanelDeepSleep(0);
 
-    // Start deep sleep (this function does not return)
+    // Start deep sleep (this function does not return). Program stops here.
     esp_deep_sleep_start();
 }

examples/Inkplate2/Advanced/DeepSleep/Inkplate2_Simple_Deep_Sleep/Inkplate2_Simple_Deep_Sleep.ino

@@ -52,7 +52,9 @@ void setup()
 
     // rtc_gpio_isolate(GPIO_NUM_12); // Isolate/disable GPIO12 on ESP32 (only to reduce power consumption in sleep)
     esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR); // Activate wake-up timer -- wake up after 20s here
-    esp_deep_sleep_start();                                        // Put ESP32 into deep sleep. Program stops here.
+
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep                           
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here.
 }
 
 void loop()

examples/Inkplate2/Advanced/Other/Inkplate2_Picture_From_RAM/Inkplate2_Picture_From_RAM.ino

@@ -50,13 +50,15 @@ void setup()
     display.drawImage(picture3, 0, 0, 212, 104); // Display selected picture at location X=0, Y=0.
     display.display();                           // Refresh the screen with new picture
 
-    // Go to deep sleep
+    // Put the panel to deep sleep
+    display.setPanelDeepSleep(0);
+
+    // Put ESP32 into deep sleep. Program stops here
     esp_deep_sleep_start();
 }
 
 
 void loop()
 {
-    // Nothing! If you use deep sleep, whole program should be in setup() because each time the board restarts, not in a
-    // loop()! loop() must be empty!
+    // Nothing! 
 }

examples/Inkplate2/Advanced/RTC/Inkplate2_RTC_Alarm_Periodic/Inkplate2_RTC_Alarm_Periodic.ino

@@ -92,14 +92,18 @@ void setup()
 
         rtc.setWakeUpTimer(wakeHours, wakeMinutes, currentTime);
 
-        // Start sleep, this function never returns
+        // Put the panel in deep sleep
+        display.setPanelDeepSleep(0);
+
+        // Start sleep, this function never returns, program stops here
         esp_deep_sleep_start();
     }
 }
 
 void loop()
 {
-    // Nothing. Loop must be empty!
+    // Never here! If you are using deep sleep, the whole program should be in setup() because the board restarts each
+    // time. loop() must be empty!
 }
 
 void waitingScreen()

examples/Inkplate2/Advanced/WEB_WiFi/Inkplate2_Show_Pictures_From_Web/Inkplate2_Show_Pictures_From_Web.ino

@@ -144,7 +144,8 @@ void setup()
 
     // Go to deep sleep
     Serial.println("Going to sleep..");
-    esp_deep_sleep_start();
+    display.setPanelDeepSleep(0); // Put the panel to deep sleep
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here
 }
 
 void loop()

examples/Inkplate2/Projects/Inkplate2_Clock/Inkplate2_Clock.ino

@@ -84,13 +84,15 @@ void setup()
 
     // Go to sleep before checking again
     // rtc_gpio_isolate(GPIO_NUM_12);   // Isolate/disable GPIO12 on ESP32 (only to reduce power consumption in sleep)
-    esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
-    esp_deep_sleep_start();
+    esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR); // Activate wake-up timer
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep    
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here.
 }
 
 void loop()
 {
-    // Never here
+    // Never here! If you are using deep sleep, the whole program should be in setup() because the board restarts each
+    // time. loop() must be empty!
 }
 // Function to draw time
 void drawTime()

examples/Inkplate2/Projects/Inkplate2_Crypto_Currency_Tracker/Inkplate2_Crypto_Currency_Tracker.ino

@@ -126,18 +126,21 @@ void setup()
 
     // Our main drawing function
     drawAll();
+    
     // Refresh
     display.display();
 
     // Go to sleep before checking again
     // rtc_gpio_isolate(GPIO_NUM_12);   // Isolate/disable GPIO12 on ESP32 (only to reduce power consumption in sleep)
-    esp_sleep_enable_timer_wakeup(1000ll * DELAY_MS);
-    esp_deep_sleep_start();
+    esp_sleep_enable_timer_wakeup(1000ll * DELAY_MS); // Activate wake-up timer
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here
 }
 
 void loop()
 {
-    // Never here
+    // Never here! If you are using deep sleep, the whole program should be in setup() because the board restarts each
+    // time. loop() must be empty!
 }
 
 void getCurrencyData()

examples/Inkplate2/Projects/Inkplate2_Daily_Weather_Station/Inkplate2_Daily_Weather_Station.ino

@@ -42,7 +42,6 @@ String apiKey = "";
 #define WAKEUP 30 * 60 * 1000 // The time that ESP will be in deep sleep - refresh weather every 30 minutes
 
 Inkplate display;
-
 Network network;
 
 struct tm timeinfo; // Current time info -> human-readable
@@ -93,9 +92,9 @@ void setup()
 
     // Go to deep sleep
     Serial.println("Going to deep sleep, bye");
-    esp_sleep_enable_timer_wakeup(1000LL * WAKEUP);
-    display.setPanelDeepSleep(0);
-    (void)esp_deep_sleep_start();
+    esp_sleep_enable_timer_wakeup(1000LL * WAKEUP); // Activate wake-up timer
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep  
+    (void)esp_deep_sleep_start(); // Put ESP32 into deep sleep. Program stops here.
 }
 
 

examples/Inkplate2/Projects/Inkplate2_Google_Calendar/Inkplate2_Google_Calendar.ino

@@ -128,7 +128,8 @@ void setup()
     // rtc_gpio_isolate(GPIO_NUM_12);   // Isolate/disable GPIO12 on ESP32 (only to reduce power consumption in sleep)
     esp_sleep_enable_timer_wakeup(1000L * DELAY_MS); // Enable wake up while sleep is enabled after 4 minutes
                                                      //  1000L * is here because function accepts microseconds
-    esp_deep_sleep_start();
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here
 }
 
 /**
@@ -138,7 +139,8 @@ void setup()
 */
 void loop()
 {
-    // Never here
+    // Never here! If you are using deep sleep, the whole program should be in setup() because the board restarts each
+    // time. loop() must be empty!
 }
 
 /**

examples/Inkplate2/Projects/Inkplate2_Hourly_Weather_Station/Inkplate2_Hourly_Weather_Station.ino

@@ -120,12 +120,15 @@ void setup()
 
     // Go to sleep before checking again
     // rtc_gpio_isolate(GPIO_NUM_12);   // Isolate/disable GPIO12 on ESP32 (only to reduce power consumption in sleep)
-    esp_sleep_enable_timer_wakeup(1000L * DELAY_MS);
-    esp_deep_sleep_start();
+    esp_sleep_enable_timer_wakeup(1000L * DELAY_MS); // Activate wake-up timer
+    display.setPanelDeepSleep(0); // Put the panel into deep sleep
+    esp_deep_sleep_start();       // Put ESP32 into deep sleep. Program stops here
 }
 
 void loop()
 {
+    // Never here! If you are using deep sleep, the whole program should be in setup() because the board restarts each
+    // time. loop() must be empty!
 }
 
 // Function for drawing temperatures