144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
#include "bme280.h"
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#include "pico/cyw43_arch.h"
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#include "pico/stdlib.h"
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#include <hardware/watchdog.h>
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#include "tcp_client.h"
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#include <pico/time.h>
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#include <pico/types.h>
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#include <stdio.h>
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#define SENSOR_READING_INTERVAL_US (1000000 * 10) // 10 seconds
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#define WIFI_STATUS_LED_PIN 16
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static tcp_client_config tcp_config;
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static bme280_config bem_config;
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static bme280_reading current_bem280_reading;
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char msg_to_send[256];
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static void send_msg(char *msg) {
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bool success = tcp_client_send_message(&tcp_config, msg);
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if (success) {
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printf("✓ Data sent successfully\n");
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} else {
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printf("✗ Failed to send data\n");
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}
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}
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void comms_led_init() {
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}
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int main() {
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stdio_init_all();
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watchdog_enable(120000, 1); // 120 second watchdog
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printf("\n=== NODE 001 ===\n");
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printf("Initializing board...\n");
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sleep_ms(2000);
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printf("Initializing WIFI status LED...\n");
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gpio_init(WIFI_STATUS_LED_PIN);
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gpio_set_dir(WIFI_STATUS_LED_PIN, GPIO_OUT);
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gpio_put(WIFI_STATUS_LED_PIN, false);
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printf("Initializing BME280...\n");
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bme280_init(&bem_config, i2c1, 14, 15);
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sleep_ms(1000);
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printf("Initializing CYW43...\n");
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if (cyw43_arch_init()) {
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printf("FATAL: Failed to initialize CYW43\n");
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while (1) {
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watchdog_update();
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sleep_ms(1000);
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}
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}
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printf("Enabling WiFi station mode...\n");
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cyw43_arch_enable_sta_mode();
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cyw43_wifi_pm(&cyw43_state, CYW43_NONE_PM);
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sleep_ms(1000);
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printf("Connecting to WiFi '%s'...\n", WIFI_SSID);
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watchdog_update();
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int result = cyw43_arch_wifi_connect_timeout_ms(
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WIFI_SSID, WIFI_PASSWORD, CYW43_AUTH_WPA2_AES_PSK, 60000);
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watchdog_update();
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if (result != 0) {
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printf("FATAL: WiFi connection failed with result=%d\n", result);
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while (1) {
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watchdog_update();
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sleep_ms(1000);
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}
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}
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printf("WiFi connected!\n");
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if (!tcp_client_init(&tcp_config, BACKEND_SERVER_IP, BACKEND_SERVER_PORT,
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20000)) {
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panic("TCP client initialization failed!");
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}
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watchdog_update();
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// Poll every 5 seconds
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absolute_time_t last_check = get_absolute_time();
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absolute_time_t last_sensor_reading = get_absolute_time();
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while (1) {
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watchdog_update();
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cyw43_arch_poll();
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absolute_time_t now = get_absolute_time();
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if (absolute_time_diff_us(last_sensor_reading, now) >= SENSOR_READING_INTERVAL_US) {
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last_sensor_reading = now;
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printf("Making BME280 Reading\n");
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current_bem280_reading = bme280_read(&bem_config);
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snprintf(msg_to_send, sizeof(msg_to_send), "M001,%.2f,%.2f,%2f\n",
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current_bem280_reading.temperature, current_bem280_reading.pressure,
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current_bem280_reading.humidity);
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printf("Sending temperature, pressure, and humidity to backend server...\n");
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send_msg(msg_to_send);
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}
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if (absolute_time_diff_us(last_check, now) >= 5000000) {
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last_check = now;
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// Check connection status
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int link_status = cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA);
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printf("[WiFi Status Check]\n");
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printf(" Link Status: ");
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switch (link_status) {
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case CYW43_LINK_DOWN:
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printf("DOWN\n");
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gpio_put(WIFI_STATUS_LED_PIN, false);
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break;
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case CYW43_LINK_JOIN:
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printf("JOINING\n");
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gpio_put(WIFI_STATUS_LED_PIN, false);
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break;
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case CYW43_LINK_NOIP:
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printf("NO IP\n");
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gpio_put(WIFI_STATUS_LED_PIN, false);
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break;
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case CYW43_LINK_UP:
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printf("UP\n");
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gpio_put(WIFI_STATUS_LED_PIN, true);
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break;
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default:
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printf("UNKNOWN (%d)\n", link_status);
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gpio_put(WIFI_STATUS_LED_PIN, false);
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break;
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}
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}
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sleep_ms(100);
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}
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return 0;
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}
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