Added Inkplate2 Image Frame From Web

Author: rsoric

examples/Inkplate2/Projects/Inkplate2_Image_Frame_From_Web/Inkplate2_Image_Frame_From_Web.ino

@@ -0,0 +1,100 @@
+/*
+    Inkplate2_Image_Frame_From_Web example for Soldered Inkplate 2
+    For this example you will need only a USB-C cable and Inkplate 2.
+    Select "Soldered Inkplate2" from Tools -> Board menu.
+    Don't have "Soldered Inkplate2" option? Follow our tutorial and add it:
+    https://soldered.com/learn/add-inkplate-6-board-definition-to-arduino-ide/
+
+    This example shows how you can set Inkplate to show random pictures from web.
+    What happens here is basically ESP32 connects to the WiFi and sends GET request
+    to the random image on the server and the server returns a link to the image.
+    Then Inkplate draws that image to the screen.
+
+    Want to learn more about Inkplate? Visit www.inkplate.io
+    Looking to get support? Write on our forums: https://forum.soldered.com/
+    23 May 2023 by Soldered
+*/
+
+// Next 3 lines are a precaution, you can ignore those, and the example would also work without them
+#ifndef ARDUINO_INKPLATE2
+#error "Wrong board selection for this example, please select Soldered Inkplate2 in the boards menu."
+#endif
+
+// Include Inkplate library in the sketch
+#include "Inkplate.h"
+
+// Create an object on Inkplate library
+Inkplate display;
+
+// ---------------- CHANGE HERE ---------------------:
+
+// WiFi credentials
+const char *ssid = ""; // Your WiFi SSID
+const char *pass = ""; // Your WiFi password
+
+// Define delay between 2 images in seconds
+#define SECS_BETWEEN_IMAGES 30
+
+// ---------------------------------------------------
+
+void setup()
+{
+    // Init serial communication
+    Serial.begin(115200);
+
+    // Init Inkplate library (you should call this function ONLY ONCE)
+    display.begin();
+
+    // Join wifi
+    display.connectWiFi(ssid, pass);
+    Serial.println("Connected");
+
+    // Get the URL of the next image
+    char url[256];
+    imageUrl(url);
+
+    // Draw an image on the screen
+    Serial.println(display.drawImage(url, display.PNG, 0, 0));
+    display.display();
+
+    // Go to deep sleep
+    Serial.println("Going to sleep, bye");
+    esp_sleep_enable_timer_wakeup(SECS_BETWEEN_IMAGES * 1000 * 1000LL); // Activate wakeup timer
+    esp_deep_sleep_start(); // Start deep sleep (this function does not return). 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!
+}
+
+// Get random image from web
+void imageUrl(char *a)
+{
+    String url;
+    HTTPClient http;
+
+    // Do GET request
+    if (http.begin("https://source.unsplash.com/random/212x104?crop=entropy&fit=crop&fm=png&h=104&w=212") && http.GET() > 0)
+    {
+        url = http.getString();
+
+        int urlStart = url.indexOf("href=\"") + 6;
+        int urlEnd = url.indexOf("\">", urlStart);
+
+        url = url.substring(urlStart, urlEnd);
+        url = url.substring(0, url.indexOf("?")) + "?crop=entropy&fit=crop&fm=png&h=104&w=212";
+
+        // Print url to the Serial Monitor and copy to the buffer
+        Serial.println(url);
+        strcpy(a, url.c_str());
+    }
+    else
+    {
+        // Something went wrong, print an error message
+        display.println("HTTP error");
+        display.display();
+    }
+    http.end();
+}

src/boards/Inkplate2.cpp

@@ -135,7 +135,7 @@ void Inkplate::display()
     // Wake the panel and wait a bit
     // The refresh time is long anyway so this delay doesn't make much impact
     setPanelDeepSleep(false);
-    delay(10);
+    delay(20);
 
     // First write B&W pixels to epaper
     sendCommand(0x10);

src/boards/Inkplate5.cpp

@@ -1,8 +1,8 @@
 /**
  **************************************************
  *
- * @file        Inkplate6.cpp
- * @brief       Basic funtions for controling inkplate 6
+ * @file        Inkplate5.cpp
+ * @brief       Basic funtions for controling inkplate 5
  *
  *              https://github.com/e-radionicacom/Inkplate-Arduino-library
  *              For support, please reach over forums: forum.e-radionica.com/en

src/boards/Inkplate5.h

@@ -1,8 +1,8 @@
 /**
  **************************************************
  *
- * @file        Inkplate6.h
- * @brief       Basic funtions for controling inkplate 6
+ * @file        Inkplate5.cpp
+ * @brief       Basic funtions for controling Inkplate 5
  *
  *              https://github.com/e-radionicacom/Inkplate-Arduino-library
  *              For support, please reach over forums: forum.e-radionica.com/en