feat: ArduinoIoTCloudNotecard

arduino-libraries · Aug 10, 2024 · ee24a1b · ee24a1b
1 parent 6ef7ad8
commit ee24a1b
Show file tree

Hide file tree

Showing 33 changed files with 1,045 additions and 81 deletions.
diff --git a/.github/workflows/compile-examples.yml b/.github/workflows/compile-examples.yml
@@ -192,8 +192,10 @@ jobs:
               - name: arduino:mbed_opta
             libraries: |
               - name: ArduinoECCX08
+              - name: Blues Wireless Notecard
             sketch-paths: |
               - examples/ArduinoIoTCloud-DeferredOTA
+              - examples/ArduinoIoTCloud-Notecard
               - examples/utility/Provisioning
           # GIGA
           - board:

diff --git a/README.md b/README.md
@@ -10,11 +10,28 @@
 ### What?
 The `ArduinoIoTCloud` library is the central element of the firmware enabling certain Arduino boards to connect to the [Arduino IoT Cloud](https://www.arduino.cc/en/IoT/HomePage). The following boards are supported:
 
-* **WiFi**: [`MKR 1000`](https://store.arduino.cc/arduino-mkr1000-wifi), [`MKR WiFi 1010`](https://store.arduino.cc/arduino-mkr-wifi-1010), [`Nano 33 IoT`](https://store.arduino.cc/arduino-nano-33-iot), [`Portenta H7`](https://store.arduino.cc/portenta-h7), [`Nano RP2040 Connect`](https://store.arduino.cc/products/arduino-nano-rp2040-connect), [`Nicla Vision`](https://store.arduino.cc/products/nicla-vision), [`OPTA WiFi`](https://store.arduino.cc/products/opta-wifi), [`GIGA R1 WiFi`](https://store.arduino.cc/products/giga-r1-wifi), [`Portenta C33`](https://store.arduino.cc/products/portenta-c33), [`UNO R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi), [`Nano ESP32`](https://store.arduino.cc/products/nano-esp32), [`ESP8266`](https://github.com/esp8266/Arduino/releases/tag/2.5.0), [`ESP32`](https://github.com/espressif/arduino-esp32/releases/tag/2.0.5)
-* **GSM**: [`MKR GSM 1400`](https://store.arduino.cc/arduino-mkr-gsm-1400-1415)
+* **Wi-Fi**: [`MKR 1000`](https://store.arduino.cc/arduino-mkr1000-wifi), [`MKR WiFi 1010`](https://store.arduino.cc/arduino-mkr-wifi-1010), [`Nano 33 IoT`](https://store.arduino.cc/arduino-nano-33-iot), [`Portenta H7`](https://store.arduino.cc/portenta-h7), [`Nano RP2040 Connect`](https://store.arduino.cc/products/arduino-nano-rp2040-connect), [`Nicla Vision`](https://store.arduino.cc/products/nicla-vision), [`OPTA WiFi`](https://store.arduino.cc/products/opta-wifi), [`GIGA R1 WiFi`](https://store.arduino.cc/products/giga-r1-wifi), [`Portenta C33`](https://store.arduino.cc/products/portenta-c33), [`UNO R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi), [`Nano ESP32`](https://store.arduino.cc/products/nano-esp32), [`ESP8266`](https://github.com/esp8266/Arduino/releases/tag/2.5.0), [`ESP32`](https://github.com/espressif/arduino-esp32/releases/tag/2.0.5), [`Notecard`](https://shop.blues.com/collections/notecard)
+* **GSM**: [`MKR GSM 1400`](https://store.arduino.cc/arduino-mkr-gsm-1400-1415), [`Notecard`](https://shop.blues.com/collections/notecard)
+* **LTE**: [`Notecard`](https://shop.blues.com/collections/notecard)
 * **5G**: [`MKR NB 1500`](https://store.arduino.cc/arduino-mkr-nb-1500-1413)
-* **LoRa**: [`MKR WAN 1300/1310`](https://store.arduino.cc/mkr-wan-1310)
+* **LoRa**: [`MKR WAN 1300/1310`](https://store.arduino.cc/mkr-wan-1310), [`Notecard`](https://shop.blues.com/collections/notecard)
 * **Ethernet**: [`Portenta H7`](https://store.arduino.cc/products/portenta-h7) + [`Vision Shield Ethernet`](https://store.arduino.cc/products/arduino-portenta-vision-shield-ethernet), [`Max Carrier`](https://store.arduino.cc/products/portenta-max-carrier), [`Breakout`](https://store.arduino.cc/products/arduino-portenta-breakout), [`Portenta Machine Control`](https://store.arduino.cc/products/arduino-portenta-machine-control), [`OPTA WiFi`](https://store.arduino.cc/products/opta-wifi), [`OPTA RS485`](https://store.arduino.cc/products/opta-rs485), [`OPTA Lite`](https://store.arduino.cc/products/opta-lite), [`Portenta C33`](https://store.arduino.cc/products/portenta-c33) + [`Vision Shield Ethernet`](https://store.arduino.cc/products/arduino-portenta-vision-shield-ethernet)
+* **Satellite**: [`Notecard`](https://shop.blues.com/collections/notecard)
+
+#### More About Notecard Connectivity
+
+The Notecard is a wireless, secure abstraction for device connectivity, that can
+be used to enable _ANY*_ device with I2C, or UART, to connect to the Arduino IoT
+Cloud via cellular, LoRa, satellite or Wi-Fi (including the devices listed
+above)!
+
+As a result, the STM32 architecture has now been added to this library. If you
+have an STM32 device, you are now able to connect it to the Arduino IoT Cloud by
+using a Notecard to provide a secure communication channel.
+
+> \*_Unfortunately, the AVR architecture is not supported by the Arduino IoT
+> Cloud library. Therefore, those devices are ineligible for use with the
+> Notecard._
 
 ### How?
 1) Register your Arduino IoT Cloud capable board via [Arduino IoT Cloud](https://create.arduino.cc/iot) (Devices Section).

diff --git a/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino b/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino
@@ -2,7 +2,7 @@
   This sketch demonstrates how to use more complex cloud data types such as a colour or coordinates.
 
   IMPORTANT:
-  This sketch works with WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
+  This sketch works with Notecard, WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
   On a LoRa board, if it is configured as a class A device (default and preferred option),
   values from Cloud dashboard are received only after a value is sent to Cloud.
 
@@ -17,13 +17,15 @@ void setup() {
   Serial.begin(9600);
   for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
+  /* Specify the level of detail for debug messages */
+  setDebugMessageLevel(DBG_INFO);
+
   /* This function takes care of connecting your sketch variables to the ArduinoIoTCloud object */
   initProperties();
 
   /* Initialize Arduino IoT Cloud library */
   ArduinoCloud.begin(ArduinoIoTPreferredConnection);
 
-  setDebugMessageLevel(DBG_INFO);
   ArduinoCloud.printDebugInfo();
 }
 

diff --git a/examples/ArduinoIoTCloud-Advanced/arduino_secrets.h b/examples/ArduinoIoTCloud-Advanced/arduino_secrets.h
@@ -3,7 +3,7 @@
 /* A complete list of supported boards with WiFi is available here:
  * https://github.com/arduino-libraries/ArduinoIoTCloud/#what
  */
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI)
   #define SECRET_WIFI_SSID "YOUR_WIFI_NETWORK_NAME"
   #define SECRET_WIFI_PASS "YOUR_WIFI_PASSWORD"
 #endif

diff --git a/examples/ArduinoIoTCloud-Advanced/thingProperties.h b/examples/ArduinoIoTCloud-Advanced/thingProperties.h
@@ -2,7 +2,7 @@
 #include <Arduino_ConnectionHandler.h>
 #include "arduino_secrets.h"
 
-#if !(defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
+#if !(defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
       defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT))
   #error "Please check Arduino IoT Cloud supported boards list: https://github.com/arduino-libraries/ArduinoIoTCloud/#what"
 #endif
@@ -11,6 +11,18 @@
   #define BOARD_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
 #endif
 
+#if defined(BOARD_HAS_LORA)
+  #define THING_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+#endif
+
+#if defined(USE_NOTECARD)
+  /* The Notecard can provide connectivity to almost any board via ESLOV (I2C)
+   * or UART. An empty string (or the default value provided below) will not
+   * override the Notecard's existing configuration.
+   * Learn more at: https://dev.blues.io */
+  #define NOTECARD_PRODUCT_UID "com.domain.you:product"
+#endif
+
 void onSwitchButtonChange();
 void onColorChange();
 
@@ -23,7 +35,10 @@ void initProperties() {
   ArduinoCloud.setBoardId(BOARD_ID);
   ArduinoCloud.setSecretDeviceKey(SECRET_DEVICE_KEY);
 #endif
-#if defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT)
+#if defined(BOARD_HAS_LORA)
+  ArduinoCloud.setThingId(THING_ID);
+#endif
+#if defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT)
   ArduinoCloud.addProperty(switchButton, Permission::Write).onUpdate(onSwitchButtonChange);
   ArduinoCloud.addProperty(location, Permission::Read).publishOnChange(0.0f);
   ArduinoCloud.addProperty(color, Permission::ReadWrite).onUpdate(onColorChange);
@@ -34,7 +49,9 @@ void initProperties() {
 #endif
 }
 
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD)
+  NotecardConnectionHandler ArduinoIoTPreferredConnection(NOTECARD_PRODUCT_UID);
+#elif defined(BOARD_HAS_WIFI)
   WiFiConnectionHandler ArduinoIoTPreferredConnection(SECRET_WIFI_SSID, SECRET_WIFI_PASS);
 #elif defined(BOARD_HAS_GSM)
   GSMConnectionHandler ArduinoIoTPreferredConnection(SECRET_PIN, SECRET_APN, SECRET_LOGIN, SECRET_PASS);

diff --git a/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino b/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino
@@ -6,7 +6,7 @@
   * When you flip the switch in the Cloud dashboard the onboard LED lights gets turned ON or OFF.
 
   IMPORTANT:
-  This sketch works with WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
+  This sketch works with Notecard, WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
   On a LoRa board, if it is configured as a class A device (default and preferred option),
   values from Cloud dashboard are received only after a value is sent to Cloud.
 
@@ -25,6 +25,9 @@ void setup() {
   Serial.begin(9600);
   for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
+  /* Specify the level of detail for debug messages */
+  setDebugMessageLevel(DBG_INFO);
+
   /* Configure LED pin as an output */
   pinMode(LED_BUILTIN, OUTPUT);
 
@@ -34,7 +37,6 @@ void setup() {
   /* Initialize Arduino IoT Cloud library */
   ArduinoCloud.begin(ArduinoIoTPreferredConnection);
 
-  setDebugMessageLevel(DBG_INFO);
   ArduinoCloud.printDebugInfo();
 }
 

diff --git a/examples/ArduinoIoTCloud-Basic/arduino_secrets.h b/examples/ArduinoIoTCloud-Basic/arduino_secrets.h
@@ -3,7 +3,7 @@
 /* A complete list of supported boards with WiFi is available here:
  * https://github.com/arduino-libraries/ArduinoIoTCloud/#what
  */
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI)
   #define SECRET_WIFI_SSID "YOUR_WIFI_NETWORK_NAME"
   #define SECRET_WIFI_PASS "YOUR_WIFI_PASSWORD"
 #endif

diff --git a/examples/ArduinoIoTCloud-Basic/thingProperties.h b/examples/ArduinoIoTCloud-Basic/thingProperties.h
@@ -2,7 +2,7 @@
 #include <Arduino_ConnectionHandler.h>
 #include "arduino_secrets.h"
 
-#if !(defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
+#if !(defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
       defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT))
   #error "Please check Arduino IoT Cloud supported boards list: https://github.com/arduino-libraries/ArduinoIoTCloud/#what"
 #endif
@@ -11,6 +11,18 @@
   #define BOARD_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
 #endif
 
+#if defined(BOARD_HAS_LORA)
+  #define THING_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+#endif
+
+#if defined(USE_NOTECARD)
+  /* The Notecard can provide connectivity to almost any board via ESLOV (I2C)
+   * or UART. An empty string (or the default value provided below) will not
+   * override the Notecard's existing configuration.
+   * Learn more at: https://dev.blues.io */
+  #define NOTECARD_PRODUCT_UID "com.domain.you:product"
+#endif
+
 void onLedChange();
 
 bool led;
@@ -22,18 +34,23 @@ void initProperties() {
   ArduinoCloud.setBoardId(BOARD_ID);
   ArduinoCloud.setSecretDeviceKey(SECRET_DEVICE_KEY);
 #endif
+#if defined(BOARD_HAS_LORA)
+  ArduinoCloud.setThingId(THING_ID);
+#endif
 #if defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT)
   ArduinoCloud.addProperty(led, Permission::Write).onUpdate(onLedChange);
   ArduinoCloud.addProperty(potentiometer, Permission::Read).publishOnChange(10);
   ArduinoCloud.addProperty(seconds, Permission::Read).publishOnChange(1);
-#elif defined(BOARD_HAS_LORA)
+#elif defined(USE_NOTECARD) || defined(BOARD_HAS_LORA)
   ArduinoCloud.addProperty(led, 1, Permission::ReadWrite).onUpdate(onLedChange);
   ArduinoCloud.addProperty(potentiometer, 2, Permission::Read).publishOnChange(10);
   ArduinoCloud.addProperty(seconds, 3, Permission::Read).publishEvery(5 * MINUTES);
 #endif
 }
 
-#if defined(BOARD_HAS_ETHERNET)
+#if defined(USE_NOTECARD)
+  NotecardConnectionHandler ArduinoIoTPreferredConnection(NOTECARD_PRODUCT_UID);
+#elif defined(BOARD_HAS_ETHERNET)
   /* DHCP mode */
   //EthernetConnectionHandler ArduinoIoTPreferredConnection;
   /* Manual mode. It will fallback in DHCP mode if SECRET_OPTIONAL_IP is invalid or equal to "0.0.0.0" */

diff --git a/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino b/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino
@@ -18,7 +18,7 @@
   One function per event can be assigned.
 
   IMPORTANT:
-  This sketch works with WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
+  This sketch works with Notecard, WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
   On a LoRa board, if it is configured as a class A device (default and preferred option),
   values from Cloud dashboard are received only after a value is sent to Cloud.
 
@@ -33,6 +33,9 @@ void setup() {
   Serial.begin(9600);
   for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
+  /* Specify the level of detail for debug messages */
+  setDebugMessageLevel(DBG_INFO);
+
   /* This function takes care of connecting your sketch variables to the ArduinoIoTCloud object */
   initProperties();
 
@@ -51,7 +54,6 @@ void setup() {
   ArduinoCloud.addCallback(ArduinoIoTCloudEvent::SYNC, doThisOnSync);
   ArduinoCloud.addCallback(ArduinoIoTCloudEvent::DISCONNECT, doThisOnDisconnect);
 
-  setDebugMessageLevel(DBG_INFO);
   ArduinoCloud.printDebugInfo();
 }
 

diff --git a/examples/ArduinoIoTCloud-Callbacks/arduino_secrets.h b/examples/ArduinoIoTCloud-Callbacks/arduino_secrets.h
@@ -3,7 +3,7 @@
 /* A complete list of supported boards with WiFi is available here:
  * https://github.com/arduino-libraries/ArduinoIoTCloud/#what
  */
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI)
   #define SECRET_WIFI_SSID "YOUR_WIFI_NETWORK_NAME"
   #define SECRET_WIFI_PASS "YOUR_WIFI_PASSWORD"
 #endif

diff --git a/examples/ArduinoIoTCloud-Callbacks/thingProperties.h b/examples/ArduinoIoTCloud-Callbacks/thingProperties.h
@@ -2,7 +2,7 @@
 #include <Arduino_ConnectionHandler.h>
 #include "arduino_secrets.h"
 
-#if !(defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
+#if !(defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI) || defined(BOARD_HAS_GSM) || defined(BOARD_HAS_LORA) || \
       defined(BOARD_HAS_NB) || defined(BOARD_HAS_ETHERNET) || defined(BOARD_HAS_CATM1_NBIOT))
   #error "Please check Arduino IoT Cloud supported boards list: https://github.com/arduino-libraries/ArduinoIoTCloud/#what"
 #endif
@@ -11,14 +11,31 @@
   #define BOARD_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
 #endif
 
+#if defined(BOARD_HAS_LORA)
+  #define THING_ID "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+#endif
+
+#if defined(USE_NOTECARD)
+  /* The Notecard can provide connectivity to almost any board via ESLOV (I2C)
+   * or UART. An empty string (or the default value provided below) will not
+   * override the Notecard's existing configuration.
+   * Learn more at: https://dev.blues.io */
+  #define NOTECARD_PRODUCT_UID "com.domain.you:product"
+#endif
+
 void initProperties() {
 #if defined(BOARD_HAS_SECRET_KEY)
   ArduinoCloud.setBoardId(BOARD_ID);
   ArduinoCloud.setSecretDeviceKey(SECRET_DEVICE_KEY);
 #endif
+#if defined(BOARD_HAS_LORA)
+  ArduinoCloud.setThingId(THING_ID);
+#endif
 }
 
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD)
+  NotecardConnectionHandler ArduinoIoTPreferredConnection(NOTECARD_PRODUCT_UID);
+#elif defined(BOARD_HAS_WIFI)
   WiFiConnectionHandler ArduinoIoTPreferredConnection(SECRET_WIFI_SSID, SECRET_WIFI_PASS);
 #elif defined(BOARD_HAS_GSM)
   GSMConnectionHandler ArduinoIoTPreferredConnection(SECRET_PIN, SECRET_APN, SECRET_LOGIN, SECRET_PASS);

diff --git a/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino b/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino
@@ -58,6 +58,9 @@ void setup() {
   Serial.begin(9600);
   for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
+  /* Specify the level of detail for debug messages */
+  setDebugMessageLevel(DBG_INFO);
+
   /* Configure LED pin as an output */
   pinMode(LED_BUILTIN, OUTPUT);
 
@@ -70,7 +73,6 @@ void setup() {
   /* Setup OTA callback */
   ArduinoCloud.onOTARequestCb(onOTARequestCallback);
 
-  setDebugMessageLevel(DBG_INFO);
   ArduinoCloud.printDebugInfo();
 }
 

diff --git a/examples/ArduinoIoTCloud-DeferredOTA/arduino_secrets.h b/examples/ArduinoIoTCloud-DeferredOTA/arduino_secrets.h
@@ -3,7 +3,7 @@
 /* A complete list of supported boards with WiFi is available here:
  * https://github.com/arduino-libraries/ArduinoIoTCloud/#what
  */
-#if defined(BOARD_HAS_WIFI)
+#if defined(USE_NOTECARD) || defined(BOARD_HAS_WIFI)
   #define SECRET_WIFI_SSID "YOUR_WIFI_NETWORK_NAME"
   #define SECRET_WIFI_PASS "YOUR_WIFI_PASSWORD"
 #endif

diff --git a/examples/ArduinoIoTCloud-Notecard/ArduinoIoTCloud-Notecard.ino b/examples/ArduinoIoTCloud-Notecard/ArduinoIoTCloud-Notecard.ino
@@ -0,0 +1,68 @@
+/*
+  This sketch demonstrates how to exchange data between your board and the Arduino IoT Cloud.
+
+  * Connect a potentiometer (or other analog sensor) to A0.
+  * When the potentiometer (or sensor) value changes the data is sent to the Cloud.
+  * When you flip the switch in the Cloud dashboard the onboard LED lights gets turned ON or OFF.
+
+  IMPORTANT:
+  This sketch works with Notecard, WiFi, GSM, NB, Ethernet and Lora enabled boards supported by Arduino IoT Cloud.
+  On a LoRa board, if it is configured as a class A device (default and preferred option),
+  values from Cloud dashboard are received only after a value is sent to Cloud.
+
+  The full list of compatible boards can be found here:
+   - https://github.com/arduino-libraries/ArduinoIoTCloud#what
+*/
+
+#include <Notecard.h>
+#include "thingProperties.h"
+
+#if !defined(LED_BUILTIN) && !defined(ARDUINO_NANO_ESP32)
+static int const LED_BUILTIN = 2;
+#endif
+
+/*
+ * Choose an interrupt capable pin to reduce polling and improve
+ * the overall responsiveness of the ArduinoIoTCloud library
+ */
+// #define ATTN_PIN 9
+
+void setup() {
+  /* Initialize serial and wait up to 5 seconds for port to open */
+  Serial.begin(9600);
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
+
+  /* Specify the level of detail for debug messages */
+  setDebugMessageLevel(DBG_INFO);
+
+  /* Configure LED pin as an output */
+  pinMode(LED_BUILTIN, OUTPUT);
+
+  /* This function takes care of connecting your sketch variables to the ArduinoIoTCloud object */
+  initProperties();
+
+  /* Initialize Arduino IoT Cloud library */
+#ifndef ATTN_PIN
+  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
+  ArduinoCloud.setNotecardPollingInterval(3000);  // default: 1000ms, min: 250ms
+#else
+  ArduinoCloud.begin(ArduinoIoTPreferredConnection, ATTN_PIN);
+#endif
+
+  ArduinoCloud.printDebugInfo();
+}
+
+void loop() {
+  ArduinoCloud.update();
+  potentiometer = analogRead(A0);
+  seconds = millis() / 1000;
+}
+
+/*
+ * 'onLedChange' is called when the "led" property of your Thing changes
+ */
+void onLedChange() {
+  Serial.print("LED set to ");
+  Serial.println(led);
+  digitalWrite(LED_BUILTIN, led);
+}