[TMP] adding an example that had been used to test the new mqtt interface

This example may be deleted before merging

Author: andreagilardoni

examples/NewInterfaceExample/NewInterfaceExample.ino

@@ -0,0 +1,155 @@
+/*
+ * The following example is added for testing purposes and may be deleted before publishing the PR.
+ * This had been tested with mosquitto with the following config files inside of a local directory `/mosquitto/config`
+ * ```
+ * port 1883
+ * allow_anonymous true
+ * password_file /mosquitto/config/passwd
+ * ```
+ * passwd file containing auth arduino:arduino:
+ * ```
+ * arduino:$7$101$CkoJckWT8WWX9+Z1$mzMdh0TD99P41AEAT55GXDIPf8FLKXp7LS3BTpEvhBUnXMYj4myWSGMH7aShCufuvsbtUXChk+KCW3AncUgtuA==
+ * ```
+ * run with docker:
+ * ```
+ * docker run -it -p 1883:1883 -v "${PWD}/mosquitto/config:/mosquitto/config" eclipse-mosquitto
+ * ```
+ */
+
+#include <Arduino.h>
+#include <Arduino_DebugUtils.h>
+#include <ArduinoMqttClient.h>
+#include <Ethernet.h>
+
+uint8_t payload[] = {
+  0xda, 0x00, 0x01, 0x00, 0x00, 0x81, 0x58, 0x20,
+  0x1c, 0x05, 0xeb, 0xfa, 0xee, 0x5a, 0x38, 0xa5,
+  0x44, 0x05, 0xe9, 0x1b, 0xaa, 0xeb, 0xeb, 0x40,
+  0x68, 0x3e, 0xad, 0x1f, 0x93, 0x90, 0xd8, 0x57,
+  0x4a, 0xe3, 0x35, 0x9d, 0x84, 0xc9, 0x0f, 0x64,
+};
+
+char topic[] = "/a/d/f334982b-032f-40e9-a91a-99da31a90dbe/c/up";
+uint32_t start;
+int i = 0;
+
+MqttClient client;
+// ZephyrMqttClient client;
+volatile bool packet = false;
+
+void mqtt_cbk(const char* topic) {
+  Serial.print("Received a message on topic: \"");
+  Serial.print(topic);
+  // Serial.print("\" with payload: 0x");
+
+  // while(stream.available() > 0) {
+  //   int res = stream.read();
+
+  //   // if(res < 0x10) {
+  //   //   Serial.print('0');
+  //   // }
+  //   // Serial.print(res, HEX);
+  // }
+
+  // while(client.available() > 0) {
+  //   int res = client.read();
+
+  //   if(res < 0x10) {
+  //     Serial.print('0');
+  //   }
+  //   Serial.print(res, HEX);
+  // }
+  // packet = true;
+
+  Serial.println();
+}
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+  Serial.print("begin ");
+  Serial.println(i);
+	// int err = tls_credential_add(APP_CA_CERT_TAG, TLS_CREDENTIAL_CA_CERTIFICATE,
+	// 			 ca_certificate, sizeof(ca_certificate));
+	// if (err < 0) {
+	// 	DEBUG_ERROR("Failed to register public certificate: %d", err);
+	// }
+
+	// err = tls_credential_add(APP_KEYS, TLS_CREDENTIAL_PUBLIC_CERTIFICATE,
+	// 			 client_public_key, sizeof(client_public_key));
+	// if (err < 0) {
+	// 	DEBUG_ERROR("Failed to register puiblic key: %d", err);
+	// }
+
+	// err = tls_credential_add(APP_KEYS, TLS_CREDENTIAL_PRIVATE_KEY,
+	// 			 client_private_key, sizeof(client_private_key));
+	// if (err < 0) {
+	// 	DEBUG_ERROR("Failed to register private key: %d", err);
+	// }
+
+  while (Ethernet.linkStatus() != LinkON) {
+    Serial.println("waiting for link on");
+    delay(100);
+  }
+  Ethernet.begin();
+
+  Serial.println(Ethernet.localIP());
+
+  client.setId("f334982b-032f-40e9-a91a-99da31a90dbe");
+  client.setUsernamePassword("arduino", "arduino");
+
+  client.setReceiveCallback(mqtt_cbk);
+
+	// int res = client.connect("iot.arduino.cc", 8885);
+	int res = client.connect(IPAddress(192, 168, 10, 250), 1883);
+  // int res = client.connect("test.mosquitto.org", 1883);
+
+	Serial.print("connection result: ");
+	Serial.println(res);
+
+  res = client.subscribe("test0", MqttQos0);
+  res = client.subscribe("test1", MqttQos1);
+  res = client.subscribe("test2", MqttQos2);
+
+  Serial.print("subscribe result: ");
+	Serial.println(res);
+
+  start = millis();
+}
+void loop() {
+  client.poll();
+
+  if(client.available() > 0) {
+    Serial.println("packet received");
+    Serial.println(client.available());
+
+    while(client.available() > 0) {
+      int res = client.read();
+
+      if(res < 0x10) {
+        Serial.print('0');
+      }
+      Serial.print(res, HEX);
+    }
+
+    packet = false;
+  }
+
+  if(millis() - start > 10000) {
+    int res = client.publish(
+      topic,
+      payload,
+      sizeof(payload)
+    );
+
+    Serial.print("publish res: ");
+    Serial.println(res);
+
+    start = millis();
+  }
+  delay(100);
+}