adding example for ota non blocking download

libraries/OTAUpdate/examples/OTANonBlocking/OTANonBlocking.ino

@@ -0,0 +1,136 @@
+/*
+  OTANonBlocking
+
+  This sketch demonstrates how to make an OTA Update on the UNO R4 WiFi.
+  Upload the sketch and wait for the invasion!
+
+*/
+
+
+#include "WiFiS3.h"
+#include "OTAUpdate.h"
+#include "root_ca.h"
+#include "arduino_secrets.h"
+
+char ssid[] = SECRET_SSID;    // your network SSID (name)
+char pass[] = SECRET_PASS;    // your network password (use for WPA, or use as key for WEP)
+
+int status = WL_IDLE_STATUS;
+
+OTAUpdate ota;
+static char const OTA_FILE_LOCATION[] = "https://downloads.arduino.cc/ota/UNOR4WIFI_Animation.ota";
+
+/* -------------------------------------------------------------------------- */
+void setup() {
+/* -------------------------------------------------------------------------- */
+  //Initialize serial and wait for port to open:
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+  // check for the Wi-Fi module:
+  if (WiFi.status() == WL_NO_MODULE) {
+    Serial.println("Communication with Wi-Fi module failed!");
+    // don't continue
+    while (true);
+  }
+
+  String fv = WiFi.firmwareVersion();
+  if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
+    Serial.println("Please upgrade the firmware");
+  }
+
+  // attempt to connect to Wi-Fi network:
+  while (status != WL_CONNECTED) {
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
+    status = WiFi.begin(ssid, pass);
+
+    // wait 1 seconds for connection:
+    delay(1000);
+  }
+
+  printWiFiStatus();
+
+  Serial.println("ota.begin()");
+  int ret = ota.begin("/update.bin");
+  if(ret != OTAUpdate::OTA_ERROR_NONE) {
+    Serial.println("ota.begin() error: ");
+    Serial.println((int)ret);
+    return;
+  }
+
+  Serial.println("ota.setCACert()");
+  ret = ota.setCACert(root_ca);
+  if(ret != OTAUpdate::OTA_ERROR_NONE) {
+    Serial.println("ota.setCACert() error: ");
+    Serial.println((int)ret);
+    return;
+  }
+
+  Serial.println("ota.startDownload()");
+  int ota_size = ota.startDownload(OTA_FILE_LOCATION, "/update.bin");
+  if(ota_size <= 0) {
+    Serial.println("ota.startDownload() error: ");
+    Serial.println(ota_size);
+    return;
+  }
+
+  Serial.println("ota.downloadProgress()");
+  while((ret = ota.downloadProgress()) < ota_size) {
+    Serial.print("Progress ");
+    Serial.print(ret);
+    Serial.print("/");
+    Serial.println(ota_size);
+    delay(100);
+  }
+
+  if(ret < 0){
+    Serial.println("ota.downloadProgress() error: ");
+    Serial.println((int)ret);
+    return;
+  }
+
+  Serial.println("ota.verify()");
+  ret = ota.verify();
+  if(ret != OTAUpdate::OTA_ERROR_NONE) {
+    Serial.println("ota.verify() error: ");
+    Serial.println((int)ret);
+    return;
+  }
+\
+  Serial.println("ota.update()");
+  ret = ota.update("/update.bin");
+  if(ret != OTAUpdate::OTA_ERROR_NONE) {
+    Serial.println("ota.update() error: ");
+    Serial.println((int)ret);
+    return;
+  }
+}
+
+/* -------------------------------------------------------------------------- */
+void loop() {
+/* -------------------------------------------------------------------------- */
+  delay(1000);
+}
+
+/* -------------------------------------------------------------------------- */
+void printWiFiStatus() {
+/* -------------------------------------------------------------------------- */
+  // print the SSID of the network you're attached to:
+  Serial.print("SSID: ");
+  Serial.println(WiFi.SSID());
+
+  // print your board's IP address:
+  IPAddress ip = WiFi.localIP();
+  Serial.print("IP Address: ");
+  Serial.println(ip);
+
+  // print the received signal strength:
+  long rssi = WiFi.RSSI();
+  Serial.print("signal strength (RSSI):");
+  Serial.print(rssi);
+  Serial.println(" dBm");
+}

libraries/OTAUpdate/examples/OTANonBlocking/arduino_secrets.h

@@ -0,0 +1,2 @@
+#define SECRET_SSID ""
+#define SECRET_PASS ""

libraries/OTAUpdate/examples/OTANonBlocking/root_ca.h

@@ -0,0 +1,106 @@
+const char* root_ca = \
+/* GTS Root R1 */
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+"bP6MvPJwNQzcmRk13NfIRmPVNnGuV/u3gm3c\n" \
+"-----END CERTIFICATE-----\n" \
+/* GTS Root R2 */
+"-----BEGIN CERTIFICATE-----\n" \
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+"xLEokCZYCDzifqrXPW+6MYgKBesntaFJ7qBFVHvmJ2WZICGoo7z7GJa7Um8M7YNR\n" \
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+"6WLAYv7YTVWW4tAR+kg0Eeye7QUd5MjWHYbL\n" \
+"-----END CERTIFICATE-----\n" \
+/* GTS Root R3 */
+"-----BEGIN CERTIFICATE-----\n" \
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+"-----END CERTIFICATE-----\n" \
+/* GTS Root R4 */
+"-----BEGIN CERTIFICATE-----\n" \
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+"-----END CERTIFICATE-----\n" \
+/* GlobalSign R4 */
+"-----BEGIN CERTIFICATE-----\n" \
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+"-----END CERTIFICATE-----\n";