Adding minimal example for ESP8266 connecting to ArduinoIoTCloud

Author: aentinger

examples/ArduinoIoTCloud_ESP8266/ArduinoIoTCloud_ESP8266.ino

@@ -0,0 +1,38 @@
+/* 
+ * Minimal demo example how to connect with the
+ * Arduino IoT Cloud and a ESP8266 based WiFi board.
+ */
+
+#include "arduino_secrets.h"
+#include "thingProperties.h"
+
+#define ARDUINO_CLOUD_DEVICE_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" /* Entry "Board ID" when selecting board within Arduino Create */
+#define ARDUINO_CLOUD_DEVICE_PASS "my-password" /* Password set via IoT API */
+
+void setup() {
+
+  pinMode(LED_BUILTIN, OUTPUT);
+  
+  Serial.begin(115200);
+  
+  /* Wait up to 5 seconds for user to open serial port */
+  unsigned long serialBeginTime = millis();
+  while (!Serial && (millis() - serialBeginTime > 5000));
+
+  initProperties();
+  
+  setDebugMessageLevel(DBG_INFO);
+  
+  ArduinoCloud.begin(ArduinoIoTPreferredConnection, ARDUINO_CLOUD_DEVICE_ID, ARDUINO_CLOUD_DEVICE_PASS);
+}
+
+void loop() {
+  ArduinoCloud.update();
+}
+
+
+void onLedChange() {
+  Serial.print("LED set to ");
+  Serial.println(led);
+  digitalWrite(LED_BUILTIN, !led);
+}

examples/ArduinoIoTCloud_ESP8266/arduino_secrets.h

@@ -0,0 +1,4 @@
+#include <Arduino_ConnectionHandler.h>
+
+#define SECRET_SSID "my-wifi-ssid"
+#define SECRET_PASS "my-wifi-password"

examples/ArduinoIoTCloud_ESP8266/thingProperties.h

@@ -0,0 +1,15 @@
+#include <ArduinoIoTCloud.h>
+#include <Arduino_ConnectionHandler.h>
+
+#define THING_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" /* "Thing ID" when selecting thing within Arduino Create */
+
+void onLedChange();
+
+bool led;
+
+void initProperties() {
+  ArduinoCloud.setThingId(THING_ID);
+  ArduinoCloud.addProperty(led, READWRITE, ON_CHANGE, onLedChange);
+}
+
+WiFiConnectionHandler ArduinoIoTPreferredConnection(SECRET_SSID, SECRET_PASS);