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‎README.md

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# Network Configurator
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# Network Configurator
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[![Check Arduino status](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/actions/workflows/check-arduino.yml/badge.svg)](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/actions/workflows/check-arduino.yml)
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[![Compile Examples](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/workflows/Compile%20Examples/badge.svg)](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/actions?workflow=Compile+Examples)
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[![Spell Check](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/workflows/Spell%20Check/badge.svg)](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/actions?workflow=Spell+Check)
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[![Unit Tests](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/workflows/Unit%20Tests/badge.svg)](https://github.com/arduino-libraries/Arduino_NetworkConfigurator/actions?workflow=Unit+Tests)
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This library enables the *remote* configuration of an [`Arduino_ConnectionHandler`](https://github.com/arduino-libraries/Arduino_ConnectionHandler) instance through the board's physical interfaces like "Bluetooth Low Energy (BLE)", Serial, etc..
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The provided network configuration is stored on persistent storage and loaded at the start up.
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The library offers mechanisms for wiping out the saved network configuration on the persistent storage.
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## Supported boards and configurable connectivity types matrix
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|Boards | WiFi | Ethernet | GSM | NB-IoT | CAT-M1 | Cellular | LoRa |
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|-------|:----:|:--------:|:---:|:------:|:------:|:--------:|:----:|
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|[`UNO R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi) | X | | | | | | |
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|[`OPTA WiFi`](https://store.arduino.cc/products/opta-wifi) | X | X | | | | | |
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|[`Portenta H7`](https://store.arduino.cc/portenta-h7) | X | X | | | X | X | |
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|[`GIGA R1 WiFi`](https://store.arduino.cc/products/giga-r1-wifi)| X | | | | | | |
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|[`Nicla Vision`](https://store.arduino.cc/products/nicla-vision)| X | | | | | | |
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|[`Portenta C33`](https://store.arduino.cc/products/portenta-c33)| X | X | | | | | |
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|[`Nano RP2040 Connect`](https://store.arduino.cc/products/arduino-nano-rp2040-connect)| X | | | | | | |
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|[`Nano 33 IoT`](https://store.arduino.cc/arduino-nano-33-iot) | X | | | | | | |
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|[`MKR WiFi 1010`](https://store.arduino.cc/arduino-mkr-wifi-1010)| X | | | | | | |
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## How to clean up the stored configuration
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The `NetworkConfigurator` library provides a way for wiping out the stored network settings and forcing
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the restart of the BLE interface if turned off.
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The procedure:
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* `Arduino Opta`: press and hold the user button (`BTN_USER`) until the led (`LED_USER`) turns off
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* `Arduino MKR WiFi 1010`: short the pin 7 to GND until the led turns off
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* `Arduino GIGA R1 WiFi`: short the pin 7 to GND until the led turns off
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* `Arduino Nano RP2040 Connect`: short the pin 2 to 3.3V until the led turns off
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* Other boards: short the pin 2 to GND until the led turns off
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## Configurator Agents
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The library provides a set of *Configurator Agents* that added as plug-in to the sketch handle the communication between the Arduino Network Configurator and an external client ([*Arduino IoT App*](https://cloud.arduino.cc/iot-remote-app/) and Arduino IoT Cloud) for configuring the board.
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Out-of-the box there are 2 Configurator Agents
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* `BLEAgent`: manage the BLE interface
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* `SerialAgent`: manage the Serial interface
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### Configurator Agents and supported board matrix
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|Boards | BLEAgent | SerialAgent |
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|-------|:----:|:--------:|
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|[`UNO R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi) | X | X |
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|[`OPTA WiFi`](https://store.arduino.cc/products/opta-wifi) | X | X |
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|[`Portenta H7`](https://store.arduino.cc/portenta-h7) | X | X |
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|[`GIGA R1 WiFi`](https://store.arduino.cc/products/giga-r1-wifi)| X | X |
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|[`Nicla Vision`](https://store.arduino.cc/products/nicla-vision)| X | X |
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|[`Portenta C33`](https://store.arduino.cc/products/portenta-c33)| X | X |
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|[`Nano RP2040 Connect`](https://store.arduino.cc/products/arduino-nano-rp2040-connect)| X | X |
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|[`Nano 33 IoT`](https://store.arduino.cc/arduino-nano-33-iot) | X | X |
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|[`MKR WiFi 1010`](https://store.arduino.cc/arduino-mkr-wifi-1010)| X | X |
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### How to enable a Configurator Agent
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1. Include the *Configurator Agent* header file in the sketch ex.: `#include <configuratorAgents/agents/BLEAgent.h>`
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2. Declare a global variable of the *agent* in the sketch ex.: `BLEAgentClass BLEAgent;`
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3. Register the *agent* to the `NetworkConfigurator` ex.:`NetworkConfigurator.addAgent(BLEAgent);`
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## Storage
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The `NetworkConfigurator` needs a *persistent storage* for saving the provided network configuration.
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The user must specify a *storage library* in the sketch and pass it to the `NetworkConfigurator` as parameter.
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The user can use the [`Arduino_KVStore`](https://github.com/arduino-libraries/Arduino_KVStore) library as storage, otherwise he can implement his own custom storage library.
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The custom storage library must be based on a Key-Value storage system and must implement the interface `KVStoreInterface` of the [`Arduino_KVStore`](https://github.com/arduino-libraries/Arduino_KVStore) library
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### How to set the storage library
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1. Include the header file of the *storage library* ex.: `#include <Arduino_KVStore.h>`
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2. Declare the instance of the *storage manager* ex.: `KVStore kvstore;`
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3. Register the storage manager instance to the `NetworkConfigurator` ex.: `NetworkConfigurator.setStorage(kvstore);`
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## How-to-use
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1. Choose and include a *storage library* like [`Arduino_KVStore`](https://github.com/arduino-libraries/Arduino_KVStore)
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2. Choose and include the *Configurator Agents*
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3. Register the *storage library* and the *Configurator Agents* to the `NetworkConfigurator`
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```
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#include <GenericConnectionHandler.h>
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#include <Arduino_KVStore.h>
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#include <Arduino_NetworkConfigurator.h>
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#include <configuratorAgents/agents/BLEAgent.h>
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#include <configuratorAgents/agents/SerialAgent.h>
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KVStore kvstore;
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BLEAgentClass BLEAgent;
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SerialAgentClass SerialAgent;
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GenericConnectionHandler conMan;
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NetworkConfiguratorClass NetworkConfigurator(conMan);
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void setup() {
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/* Initialize serial debug port and wait up to 5 seconds for port to open */
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Serial.begin(9600);
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for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
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/* Add callbacks to the ConnectionHandler object to get notified of network
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* connection events. */
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conMan.addCallback(NetworkConnectionEvent::CONNECTED, onNetworkConnect);
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conMan.addCallback(NetworkConnectionEvent::DISCONNECTED, onNetworkDisconnect);
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conMan.addCallback(NetworkConnectionEvent::ERROR, onNetworkError);
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/* Set the KVStore */
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NetworkConfigurator.setStorage(kvstore);
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/* Add the interfaces that are enabled for configuring the network*/
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NetworkConfigurator.addAgent(BLEAgent);
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NetworkConfigurator.addAgent(SerialAgent);
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/* Start the network configurator */
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NetworkConfigurator.begin();
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}
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void loop() {
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/*
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* Poll the networkConfigurator and check if connectionHandler is configured.
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* If the ConnectionHandler has been configured, the following code keeps on
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* running connection workflows on our allowing reconnection in case of failure
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* and notification of connect/disconnect event if enabled.
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*
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* NOTE: any use of delay() within the loop or methods called from it will delay
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* the execution of .update() and .check() methods of the NetworkConfigurator and
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* ConnectionHandler objects which might not guarantee the correct functioning
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* of the code.
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*/
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if(NetworkConfigurator.update() == NetworkConfiguratorStates::CONFIGURED) {
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conMan.check();
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}
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}
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void onNetworkConnect() {
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Serial.println(">>>> CONNECTED to network");
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}
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void onNetworkDisconnect() {
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Serial.println(">>>> DISCONNECTED from network");
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}
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void onNetworkError() {
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Serial.println(">>>> ERROR");
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}
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```
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View the full example in the `example` folder.

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