init llm assisted tcp client

node1.c

@@ -1,6 +1,8 @@
 #include "bme280.h"
 #include "pico/stdlib.h"
 #include "pms5003.h"
+#include "pico/cyw43_arch.h"
+#include "tcp_client.h"
 #include <hardware/gpio.h>
 #include <hardware/i2c.h>
 #include <hardware/uart.h>
@@ -13,10 +15,19 @@
 #include <hardware/watchdog.h>
 
 // 5 sec loop is for testing
-// #define LOOP_INTERVAL_MS 5000
-#define LOOP_INTERVAL_MS 10000
+#define LOOP_INTERVAL_MS 5000
+// #define LOOP_INTERVAL_MS 10000
 // #define LOOP_INTERVAL_MS 30000
 
+// WiFi and Backend Server Configuration
+#ifndef BACKEND_SERVER_IP
+#define BACKEND_SERVER_IP "192.168.1.153"
+#endif
+
+#ifndef BACKEND_SERVER_PORT
+#define BACKEND_SERVER_PORT 8080
+#endif
+
 /**
  * Balcony Weather Station Node 1
  * record sensor data and send it to home assistant every 5 minutes
@@ -28,6 +39,7 @@ void comms_led_init() {
   gpio_set_dir(16, GPIO_OUT);
 }
 
+
 absolute_time_t comms_led_off_time;
 int16_t comms_led_blink_count = 0;
 bool comms_led_state = false;
@@ -55,6 +67,9 @@ static bool cb_24h(__unused struct repeating_timer *t) {
     return false; // Not reached
 }
 
+static tcp_client_config tcp_config;
+static bool wifi_connected = false;
+
 static pms5003_config pms_config;
 static pms5003_reading current_pms5003_reading;
 
@@ -78,6 +93,28 @@ static bme280_reading calculate_average_bme280_reading() {
   return average_reading;
 }
 
+/**
+ * Initialize WiFi connection
+ */
+bool wifi_init(void) {
+    if (cyw43_arch_init()) {
+        printf("Failed to initialize CYW43\n");
+        return false;
+    }
+
+    cyw43_arch_enable_sta_mode();
+    printf("Connecting to WiFi '%s'...\n", WIFI_SSID);
+
+    if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASSWORD,
+                                           CYW43_AUTH_WPA2_AES_PSK, 30000)) {
+        printf("Failed to connect to WiFi\n");
+        return false;
+    }
+
+    printf("WiFi connected successfully\n");
+    return true;
+}
+
 /**
  * Callback function called every 30 seconds
  */
@@ -97,14 +134,33 @@ static bool cb_30(__unused struct repeating_timer *t) {
     printf("PM1: %.2f\n", current_pms5003_reading.pm1);
     printf("PM2.5: %.2f\n", current_pms5003_reading.pm2_5);
     printf("PM10: %.2f\n", current_pms5003_reading.pm10);
-    // char msg[100];
-    // char msg[200];
-    // snprintf(msg, sizeof(msg),  "{\"temp\": %.2f, \"pressure\": %.2f, \"humidity\": %.2f, \"pm1\": %.2f, \"pm2_5\": %.2f, \"pm10\": %.2f}\n",
-    //   current_bem280_reading.temperature, current_bem280_reading.pressure, current_bem280_reading.humidity,
-    //   current_pms5003_reading.pm1, current_pms5003_reading.pm2_5, current_pms5003_reading.pm10);
-    printf("Sending data to home assistant...\n");
-    // printf
-    // mqtt_client_pub_message(&mqtt_config, msg);
+
+    // Send to backend server if WiFi is connected
+    if (wifi_connected) {
+        char msg[256];
+        snprintf(msg, sizeof(msg),
+                 "{\"temperature\":%.2f,\"pressure\":%.2f,\"humidity\":%.2f,"
+                 "\"pm1\":%.2f,\"pm2_5\":%.2f,\"pm10\":%.2f}\n",
+                 current_bem280_reading.temperature,
+                 current_bem280_reading.pressure,
+                 current_bem280_reading.humidity,
+                 current_pms5003_reading.pm1,
+                 current_pms5003_reading.pm2_5,
+                 current_pms5003_reading.pm10);
+
+        printf("Sending data to backend server...\n");
+        bool success = tcp_client_send_message(&tcp_config, msg);
+
+        if (success) {
+            printf("✓ Data sent successfully\n");
+            comms_led_blink();
+        } else {
+            printf("✗ Failed to send data\n");
+        }
+    } else {
+        printf("WiFi not connected, skipping send\n");
+    }
+
     return true;
   }
 
@@ -135,10 +191,28 @@ static bool cb_30(__unused struct repeating_timer *t) {
 int main() {
   stdio_init_all();
   watchdog_enable(60000, 1);
+  sleep_ms(2000);  // Give time for USB serial
 
   // Initialize communication LED
   comms_led_init();
 
+  // Initialize WiFi
+  printf("Initializing WiFi...\n");
+  if (!wifi_init()) {
+      printf("WiFi initialization failed!\n");
+      // Continue anyway for sensor readings
+  } else {
+      wifi_connected = true;
+
+      // Initialize TCP client
+      if (!tcp_client_init(&tcp_config, BACKEND_SERVER_IP,
+                          BACKEND_SERVER_PORT, 10000)) {
+          printf("TCP client initialization failed\n");
+          wifi_connected = false;
+      } else {
+          printf("TCP client ready: %s:%d\n", BACKEND_SERVER_IP, BACKEND_SERVER_PORT);
+      }
+  }
 
   // Setup BME280
   bme280_init(&bem_config, i2c1, 14, 15);