ESP32C6 dashboard

main.c

// SPDX-FileCopyrightText: 2024 Cesanta Software Limited
// SPDX-License-Identifier: GPL-2.0-only or commercial
// Generated by Mongoose Wizard, https://mongoose.ws/wizard/

#include "mongoose_glue.h"
#include "wifi.h"

#include "driver/gpio.h"
#include "driver/temperature_sensor.h"
#include "nvs_flash.h"

temperature_sensor_handle_t temp_sensor = NULL;
nvs_handle_t nvs_h;

extern void wifi_init(const char *ssid, const char *pass);

#define LED1 GPIO_NUM_15
void my_get_leds(struct leds *leds) {
  leds->led1 = !gpio_get_level(LED1);
}
void my_set_leds(struct leds *leds) {
  gpio_set_level(LED1, !leds->led1);
}

void my_get_state(struct state *state) {
  float t = 0;
  ESP_ERROR_CHECK(temperature_sensor_get_celsius(temp_sensor, &t));
  state->temperature = t;

  state->ram_total = heap_caps_get_total_size(MALLOC_CAP_DEFAULT);
  state->ram_used = heap_caps_get_free_size(MALLOC_CAP_DEFAULT);
}

void my_get_settings(struct settings *settings) {
  size_t size = sizeof(settings->device_name);
  if (nvs_get_str(nvs_h, "dn", settings->device_name, &size) != ESP_OK) {
    strncpy(settings->device_name, "MyDevice", sizeof(settings->device_name));
  }
}
void my_set_settings(struct settings *settings) {
  nvs_set_str(nvs_h, "dn", settings->device_name);
  nvs_commit(nvs_h);
}

void app_main() {
  wifi_init(WIFI_SSID, WIFI_PASS);  // This blocks until connected

  mongoose_init();

  gpio_config_t io_conf = {
      .pin_bit_mask = (1ULL << LED1),         // Select the pin
      .mode = GPIO_MODE_INPUT_OUTPUT,         // Set as output mode
      .pull_up_en = GPIO_PULLUP_DISABLE,      // No pull-up
      .pull_down_en = GPIO_PULLDOWN_DISABLE,  // No pull-down
      .intr_type = GPIO_INTR_DISABLE,         // No interrupts
  };
  gpio_config(&io_conf);
  mongoose_set_http_handlers("leds", my_get_leds, my_set_leds);

  temperature_sensor_config_t tc = TEMPERATURE_SENSOR_CONFIG_DEFAULT(0, 70);
  temperature_sensor_install(&tc, &temp_sensor);
  temperature_sensor_enable(temp_sensor);
  mongoose_set_http_handlers("state", my_get_state, NULL);

  esp_err_t ret = nvs_flash_init();
  if (ret == ESP_ERR_NVS_NO_FREE_PAGES ||
      ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
    ESP_ERROR_CHECK(nvs_flash_erase());
    ret = nvs_flash_init();
  }
  ESP_ERROR_CHECK(nvs_open("nvs", NVS_READWRITE, &nvs_h));
  mongoose_set_http_handlers("settings", my_get_settings, my_set_settings);

  for (;;) {
    mongoose_poll();
  }
}