Create iot_device_code.ino

blockchain_integration/pi_network/pi_network_university/device_code/iot_device_code.ino

@@ -0,0 +1,48 @@
+// iot_device_code.ino
+
+#include <WiFi.h>
+#include <PubSubClient.h>
+
+// WiFi credentials
+const char* ssid = "your_wifi_ssid";
+const char* password = "your_wifi_password";
+
+// MQTT broker credentials
+const char* mqttServer = "your_mqtt_broker_url";
+const char* mqttTopic = "your_mqtt_topic";
+const char* mqttUsername = "your_mqtt_username";
+const char* mqttPassword = "your_mqtt_password";
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+void setup() {
+  Serial.begin(115200);
+
+  // Connect to WiFi
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.println("Connecting to WiFi...");
+  }
+  Serial.println("Connected to WiFi");
+  Serial.println("Initializing MQTT client...");
+
+  // Connect to MQTT broker
+  client.setServer(mqttServer, 1883);
+  client.connect(mqttUsername, mqttPassword);
+}
+
+void loop() {
+  // Read sensor data (e.g. temperature, humidity, etc.)
+  int sensorValue = analogRead(A0);
+
+  // Convert sensor data to string
+  String sensorData = String(sensorValue);
+
+  // Publish sensor data to MQTT topic
+  client.publish(mqttTopic, sensorData.c_str());
+
+  // Wait for 1 minute before publishing again
+  delay(60000);
+}