Add compatibility for Arduino R4 WiFi and Minima

library.properties

@@ -1,5 +1,5 @@
 name=Adafruit IO Arduino
-version=4.3.2
+version=4.3.3
 author=Adafruit
 maintainer=Adafruit <[email protected]>
 sentence=Arduino library to access Adafruit IO.

src/AdafruitIO_WiFi.h

@@ -56,6 +56,11 @@ typedef AdafruitIO_WICED AdafruitIO_WiFi;
 #include "wifi/AdafruitIO_RP2040.h"
 typedef AdafruitIO_RP2040 AdafruitIO_WiFi;
 
+#elif defined(ARDUINO_UNOWIFIR4) || defined(ARDUINO_MINIMA)
+
+#include "wifi/AdafruitIO_Arduino_RenesasUno.h"
+typedef AdafruitIO_Arduino_RenesasUno AdafruitIO_WiFi;
+
 #else
 
 #warning "Must define USE_AIRLIFT or USE_WINC1500 before including this file."

src/wifi/AdafruitIO_Arduino_RenesasUno.h

@@ -0,0 +1,159 @@
+/*!
+ * @file AdafruitIO_Arduino_RenesasUno.h
+ *
+ * This is part of Adafruit IO Arduino. It is designed specifically to work
+ * with Arduino Renesas Uno WiFi Rev 4 and Arduino Minima.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Written by Brent Rubell for Adafruit Industries, 2025
+ *
+ * MIT license, all text here must be included in any redistribution.
+ *
+ */
+#ifndef ADAFRUITIO_RENESAS_UNO_H
+#define ADAFRUITIO_RENESAS_UNO_H
+
+#include "AdafruitIO.h"
+#include "Adafruit_MQTT.h"
+#include "Adafruit_MQTT_Client.h"
+#include "Arduino.h"
+#include "SPI.h"
+#include "WiFiS3.h"
+
+/****************************************************************************/
+/*!
+    @brief  Class that stores functions for interacting with Uno R4 Devices
+*/
+/****************************************************************************/
+class AdafruitIO_Arduino_RenesasUno : public AdafruitIO {
+
+public:
+  /**************************************************************************/
+  /*!
+  @brief  Initializes the Adafruit IO class for Uno R4 devices.
+  @param    user
+            A reference to the Adafruit IO user, shared by AdafruitIO.
+  @param    key
+            A reference to the Adafruit IO Key, shared by AdafruitIO.
+  @param    ssid
+            A reference to the WiFi network SSID.
+  @param    pass
+            A reference to the WiFi network password.
+  */
+  /**************************************************************************/
+  AdafruitIO_Arduino_RenesasUno(const char *user, const char *key,
+                                const char *ssid, const char *pass)
+      : AdafruitIO(user, key) {
+    _ssid = ssid;
+    _pass = pass;
+    _mqtt_client = new WiFiSSLClient;
+    _mqtt = new Adafruit_MQTT_Client(_mqtt_client, _host, _mqtt_port);
+    _http_client = new WiFiSSLClient;
+    _http = new HttpClient(*_http_client, _host, _http_port);
+  }
+
+  /**************************************************************************/
+  /*!
+  @brief  Destructor for the Adafruit IO AirLift class.
+  */
+  /**************************************************************************/
+  ~AdafruitIO_Arduino_RenesasUno() {
+    if (_mqtt_client)
+      delete _http_client;
+    if (_http_client)
+      delete _mqtt_client;
+    if (_mqtt)
+      delete _mqtt;
+    if (_http)
+      delete _http;
+  }
+
+  /********************************************************/
+  /*!
+  @brief  Returns the network status of an ESP32 module.
+  @return aio_status_t
+  */
+  /********************************************************/
+  aio_status_t networkStatus() {
+    switch (WiFi.status()) {
+    case WL_CONNECTED:
+      return AIO_NET_CONNECTED;
+    case WL_CONNECT_FAILED:
+      return AIO_NET_CONNECT_FAILED;
+    case WL_CONNECTION_LOST:
+      return AIO_NET_CONNECT_FAILED;
+    case WL_DISCONNECTED:
+      return AIO_NET_DISCONNECTED;
+    case WL_NO_MODULE:
+      return AIO_NET_DISCONNECTED;
+    case WL_IDLE_STATUS:
+      return AIO_IDLE;
+    default:
+      return AIO_NET_DISCONNECTED;
+    }
+  }
+
+  /*****************************************************************/
+  /*!
+  @brief  Returns the type of network connection used by AdafruitIO.
+  @return RENESASUNOR4
+  */
+  /*****************************************************************/
+  const char *connectionType() { return "RENESASUNOR4"; }
+
+protected:
+  const char *_ssid;
+  const char *_pass;
+  WiFiSSLClient *_http_client;
+  WiFiSSLClient *_mqtt_client;
+
+  /**************************************************************************/
+  /*!
+  @brief  Attempts to establish a WiFi connection with the wireless network,
+  given _ssid and _pass from the AdafruitIO_Arduino_RenesasUno constructor.
+  */
+  /**************************************************************************/
+  void _connect() {
+    if (strlen(_ssid) == 0) {
+      _status = AIO_SSID_INVALID;
+    } else {
+
+      // check for the WiFi module:
+      if (WiFi.status() == WL_NO_MODULE) {
+        Serial.println("Communication with WiFi module failed!");
+        return;
+      }
+
+      String fv = WiFi.firmwareVersion();
+      if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
+        Serial.print("Firmware version ");
+        Serial.print(fv);
+        Serial.print(" is outdated. Latest version is ");
+        Serial.println(WIFI_FIRMWARE_LATEST_VERSION);
+        Serial.println("Please upgrade the WiFiS3 firmware!");
+        return;
+      }
+
+      // disconnect from possible previous connection
+      _disconnect();
+
+      WiFi.begin(_ssid, _pass);
+      _status = AIO_NET_DISCONNECTED;
+    }
+  }
+
+  /**************************************************************************/
+  /*!
+      @brief    Disconnect the wifi network.
+  */
+  /**************************************************************************/
+  void _disconnect() {
+    WiFi.disconnect();
+    delay(AIO_NET_DISCONNECT_WAIT);
+  }
+};
+
+#endif // ADAFRUITIO_RENESAS_UNO_H