diff --git a/node1.c b/node1.c
index fc7ca2c..9370444 100644
--- a/node1.c
+++ b/node1.c
@@ -35,6 +35,7 @@ int main() {
 
   printf("Enabling WiFi station mode...\n");
   cyw43_arch_enable_sta_mode();
+  cyw43_wifi_pm(&cyw43_state, CYW43_NONE_PM);
   sleep_ms(1000);
 
   printf("Connecting to WiFi '%s'...\n", WIFI_SSID);
diff --git a/node1_old.c b/node1_old.c
new file mode 100644
index 0000000..161a97f
--- /dev/null
+++ b/node1_old.c
@@ -0,0 +1,195 @@
+#include "bme280.h"
+#include "pico/cyw43_arch.h"
+#include "pico/stdlib.h"
+#include "pms5003.h"
+#include "tcp_client.h"
+#include <hardware/gpio.h>
+#include <hardware/i2c.h>
+#include <hardware/uart.h>
+#include <hardware/watchdog.h>
+#include <pico/time.h>
+#include <pico/types.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+// 5 sec loop is for testing
+// #define LOOP_INTERVAL_MS 5000
+#define LOOP_INTERVAL_MS 20000
+// #define LOOP_INTERVAL_MS 30000
+
+/**
+ * Balcony Weather Station Node 1
+ * record sensor data and send it to home assistant every 5 minutes
+ * Sensors: BME280, PMS5003
+ */
+
+// COMMS LED
+absolute_time_t comms_led_off_time;
+int16_t comms_led_blink_count = 0;
+bool comms_led_state = false;
+void comms_led_init() {
+  gpio_init(16);
+  gpio_set_dir(16, GPIO_OUT);
+}
+void comms_led_blink() {
+  printf("COMMS LED BLINK COUNT: %d\n", comms_led_blink_count);
+  comms_led_blink_count++;
+  comms_led_state = true;
+  comms_led_off_time = make_timeout_time_ms(1000);
+  gpio_put(16, comms_led_state);
+}
+void comms_led_update() {
+  if (time_reached(comms_led_off_time)) {
+    comms_led_state = false;
+    gpio_put(16, comms_led_state);
+  }
+}
+
+// Callback to reset the Pico after 24 hours
+static bool cb_24h(__unused struct repeating_timer *t) {
+  printf("Restarting Pico after 24 hours...\n");
+  watchdog_enable(1, 1); // 1 ms timeout, reset on next loop
+  while (1) {
+    tight_loop_contents();
+  } // Wait for reset
+  return false; // Not reached
+}
+
+static tcp_client_config tcp_config;
+
+static pms5003_config pms_config;
+static pms5003_reading current_pms5003_reading;
+
+static int8_t readings_index = 0;
+static bme280_config bem_config;
+static bme280_reading current_bem280_reading;
+
+//  Initialize WiFi connection
+bool wifi_init(void) {
+  printf("Initializing WiFi...\n");
+  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, 60000)) {
+    printf("Failed to connect to WiFi\n");
+    return false;
+  }
+
+  printf("WiFi connected successfully\n");
+  return true;
+}
+
+// Send a message over TCP to homeassistant event proxy
+static void send_msg(char *msg) {
+  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");
+  }
+}
+
+/**
+ * Callback function called every 30 seconds
+ */
+char msg_to_send[256];
+static bool do_work(void) {
+  printf("cb_30: %d\n", readings_index);
+
+  // Read BME280
+  printf("Making BME280 Reading\n");
+  current_bem280_reading = bme280_read(&bem_config);
+
+  if (readings_index == 2) {
+    printf("Warming up PMSS5003\n");
+    pms5003_warmup(&pms_config);
+  }
+
+  if (readings_index == 4) {
+    printf("Starting reads on PMSS5003\n");
+    pms5003_start_reading(&pms_config);
+  }
+
+  if (readings_index == 6) {
+    printf("Finished reading PMSS5003\n");
+    current_pms5003_reading = pms5003_finish_reading(&pms_config);
+  }
+
+  readings_index++;
+  if (readings_index >= 10) {
+    readings_index = 0;
+  }
+
+  snprintf(msg_to_send, sizeof(msg_to_send), "M001,%.2f,%.2f,%2f\n",
+           current_bem280_reading.temperature, current_bem280_reading.pressure,
+           current_bem280_reading.humidity);
+  printf("Sending temperature, pressure, and humidity to backend server...\n");
+  send_msg(msg_to_send);
+
+  // send PM readings
+  if (readings_index == 6) {
+    snprintf(msg_to_send, sizeof(msg_to_send), "M02,%.2f,%.2f,%2f\n",
+             current_pms5003_reading.pm1, current_pms5003_reading.pm2_5,
+             current_pms5003_reading.pm10);
+    printf("Sending particulate matter readings to backend server...\n");
+    send_msg(msg_to_send);
+  }
+
+  return true;
+};
+
+bool cb_30_trigger = true;
+static bool cb_30(__unused struct repeating_timer *t) {
+  cb_30_trigger = true;
+}
+
+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
+  if (!wifi_init()) {
+    panic("WiFi initialization failed!");
+  }
+  if (!tcp_client_init(&tcp_config, BACKEND_SERVER_IP, BACKEND_SERVER_PORT,
+                       20000)) {
+    panic("TCP client initialization failed!");
+  }
+
+  // Setup BME280
+  bme280_init(&bem_config, i2c1, 14, 15);
+
+  // Setup PMS5003
+  pms5003_init(&pms_config, uart1, 20, 21, 18, 19);
+
+  struct repeating_timer timer_30;
+  add_repeating_timer_ms(LOOP_INTERVAL_MS, cb_30, NULL, &timer_30);
+  struct repeating_timer timer_24h;
+  add_repeating_timer_ms(86400000, cb_24h, NULL, &timer_24h);
+  while (true) {
+    cyw43_arch_poll();
+    cyw43_arch_wait_for_work_until(make_timeout_time_ms(1000));
+    comms_led_update();
+    watchdog_update();
+    tight_loop_contents();
+    // Iterate over msgs_to_send and send them if not empty
+    if (cb_30_trigger) {
+      do_work();
+      cb_30_trigger = false;
+    }
+  }
+}
+p
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