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pump_controller_web/main/main.c
thek4n c13b47a276 style
2026-06-05 19:50:49 +03:00

555 lines
16 KiB
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#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <stdatomic.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <freertos/event_groups.h>
#include <freertos/projdefs.h>
#include <esp_system.h>
#include <esp_wifi.h>
#include <driver/gpio.h>
#include <esp_event.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <lwip/err.h>
#include <lwip/sys.h>
#include <cJSON.h>
#include "esp_http_server.h"
#include "esp_adc/adc_oneshot.h"
#include "esp_adc/adc_cali.h"
#include "esp_adc/adc_cali_scheme.h"
#include "esp_task_wdt.h"
#include "lwip/inet.h"
#include "sdkconfig.h"
#include "frontend.h"
#if !defined(CONFIG_PUMP_PIN)
#error "CONFIG_PUMP_PIN must be defined in menuconfig"
#endif
#if !defined(CONFIG_AP_WIFI_SSID)
#error "CONFIG_AP_WIFI_SSID must be defined in menuconfig"
#endif
#if !defined(CONFIG_AP_IP) || !defined(CONFIG_AP_GATEWAY) || !defined(CONFIG_AP_NETMASK)
#error "AP network configuration must be defined in menuconfig"
#endif
#define AP_MAX_CONN 4
#define AP_CHANNEL 6
#define ADC_CHAN0 ADC_CHANNEL_4
#define ADC_CHAN1 ADC_CHANNEL_5
#define ADC_ATTEN_DB ADC_ATTEN_DB_12
#define THRESHOLD_UP_NVS_NAME "threshold_up"
#define THRESHOLD_LOW_NVS_NAME "threshold_low"
#define NVS_PARTITION "nvs"
#define SENSOR_ADC_CHAN 0
#define MAX_JSON_CONTENT 512
#define FILTER_SAMPLES 5
#define PRIORITY_HTTP 1
#define PRIORITY_CONTROL 2
#define PRIORITY_SENSOR 3
static adc_oneshot_unit_handle_t adc_handle;
static adc_cali_handle_t cali_handle;
static bool is_calibrated = false;
static atomic_int g_threshold_low = 0;
static atomic_int g_threshold_up = 0;
static atomic_int g_current_pressure = 0;
static const char TAG[] = "Pump Controller";
static esp_err_t parse_thresholds_json(const char *content, int *low_value, int *up_value) {
cJSON *json = cJSON_Parse(content);
if (!json) {
return ESP_FAIL;
}
cJSON *low_item = cJSON_GetObjectItem(json, "low");
cJSON *up_item = cJSON_GetObjectItem(json, "up");
bool valid = cJSON_IsNumber(low_item) && cJSON_IsNumber(up_item);
if (valid) {
*low_value = low_item->valueint;
*up_value = up_item->valueint;
}
cJSON_Delete(json);
return valid ? ESP_OK : ESP_FAIL;
}
static esp_err_t receive_http_content(httpd_req_t *req, char **content) {
size_t content_len = req->content_len;
if (content_len > MAX_JSON_CONTENT) {
httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Content too large");
return ESP_FAIL;
}
*content = malloc(content_len + 1);
if (!*content) {
httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Memory allocation failed");
return ESP_FAIL;
}
int ret;
int received = 0;
while (received < content_len) {
ret = httpd_req_recv(req, *content + received, content_len - received);
if (ret <= 0) break;
received += ret;
}
(*content)[content_len] = '\0';
return ESP_OK;
}
static esp_err_t send_json_response(httpd_req_t *req, const char *format, ...) {
char response[100];
va_list args;
va_start(args, format);
vsnprintf(response, sizeof(response), format, args);
va_end(args);
httpd_resp_set_type(req, "application/json");
httpd_resp_send(req, response, strlen(response));
return ESP_OK;
}
esp_err_t adc_init(void) {
adc_oneshot_unit_init_cfg_t init_config = {
.unit_id = ADC_UNIT_1,
};
esp_err_t ret = adc_oneshot_new_unit(&init_config, &adc_handle);
if (ret != ESP_OK) return ret;
adc_oneshot_chan_cfg_t config = {
.atten = ADC_ATTEN_DB,
.bitwidth = ADC_BITWIDTH_DEFAULT,
};
ret = adc_oneshot_config_channel(adc_handle, ADC_CHAN0, &config);
if (ret != ESP_OK) return ret;
ret = adc_oneshot_config_channel(adc_handle, ADC_CHAN1, &config);
if (ret != ESP_OK) return ret;
adc_cali_line_fitting_config_t cali_config = {
.unit_id = ADC_UNIT_1,
.atten = ADC_ATTEN_DB,
.bitwidth = ADC_BITWIDTH_DEFAULT,
};
ret = adc_cali_create_scheme_line_fitting(&cali_config, &cali_handle);
if (ret == ESP_OK) {
is_calibrated = true;
ESP_LOGI(TAG, "ADC success calibration");
} else if (ret == ESP_ERR_NOT_SUPPORTED) {
ESP_LOGW(TAG, "Calibrating not available (eFuse doesn't written)");
} else {
ESP_LOGE(TAG, "Error calibrating");
}
return ESP_OK;
}
static esp_err_t pump_init(void) {
gpio_config_t io_conf = {
.pin_bit_mask = (1ULL << CONFIG_PUMP_PIN),
.mode = GPIO_MODE_OUTPUT,
.intr_type = GPIO_INTR_DISABLE,
.pull_down_en = 1,
.pull_up_en = 0,
};
esp_err_t ret = gpio_config(&io_conf);
if (ret != ESP_OK) return ret;
gpio_set_level(CONFIG_PUMP_PIN, false);
return ESP_OK;
}
int adc_read_raw(uint8_t channel) {
int raw_value = 0;
adc_channel_t adc_channel;
if (channel == 0) {
adc_channel = ADC_CHAN0;
} else if (channel == 1) {
adc_channel = ADC_CHAN1;
} else {
ESP_LOGE(TAG, "Wrong ADC channel: %d", channel);
return -1;
}
if (adc_handle == NULL) {
ESP_LOGE(TAG, "ADC not initialized");
return -1;
}
esp_err_t ret = adc_oneshot_read(adc_handle, adc_channel, &raw_value);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "Error reading ADC");
return -1;
}
return raw_value;
}
int adc_read_voltage(uint8_t channel) {
int raw_value = adc_read_raw(channel);
if (raw_value < 0) return -1;
if (is_calibrated) {
int voltage_mv = 0;
esp_err_t ret = adc_cali_raw_to_voltage(cali_handle, raw_value, &voltage_mv);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "Error convert to voltage");
return -1;
}
return voltage_mv;
} else {
return (raw_value * 3300) / 4095;
}
}
static esp_err_t root_get_handler(httpd_req_t *req) {
httpd_resp_set_type(req, "text/html; charset=utf-8");
httpd_resp_send(req, (const char*)assets_index_html, HTTPD_RESP_USE_STRLEN);
return ESP_OK;
}
static esp_err_t current_pressure_handler(httpd_req_t *req) {
int sensor_value = atomic_load(&g_current_pressure);
return send_json_response(req, "{\"value\":%d}", sensor_value);
}
static esp_err_t save_thresholds_handler(httpd_req_t *req) {
char *content = NULL;
if (receive_http_content(req, &content) != ESP_OK) {
return ESP_FAIL;
}
int low_value = 0, up_value = 0;
if (parse_thresholds_json(content, &low_value, &up_value) != ESP_OK) {
free(content);
httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing or invalid 'low' or 'up' parameters");
return ESP_FAIL;
}
free(content);
if (low_value >= up_value) {
httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Low value must be less than up value");
return ESP_FAIL;
}
nvs_handle_t my_handle;
esp_err_t err = nvs_open(NVS_PARTITION, NVS_READWRITE, &my_handle);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Error opening NVS");
return ESP_FAIL;
}
err = nvs_set_i32(my_handle, THRESHOLD_LOW_NVS_NAME, low_value);
if (err != ESP_OK) {
nvs_close(my_handle);
httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Failed to save");
return ESP_FAIL;
}
err = nvs_set_i32(my_handle, THRESHOLD_UP_NVS_NAME, up_value);
if (err != ESP_OK) {
nvs_close(my_handle);
httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Failed to save");
return ESP_FAIL;
}
err = nvs_commit(my_handle);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to commit NVS: %s", esp_err_to_name(err));
}
nvs_close(my_handle);
atomic_store(&g_threshold_low, low_value);
atomic_store(&g_threshold_up, up_value);
ESP_LOGI(TAG, "Thresholds saved: low: %d, up: %d", low_value, up_value);
return send_json_response(req, "{\"success\":true,\"low\":%d,\"up\":%d}", low_value, up_value);
}
static esp_err_t get_thresholds_handler(httpd_req_t *req) {
int low_threshold = atomic_load(&g_threshold_low);
int up_threshold = atomic_load(&g_threshold_up);
return send_json_response(req, "{\"low\":%d,\"up\":%d}", low_threshold, up_threshold);
}
static esp_err_t set_thresholds_handler(httpd_req_t *req) {
char *content = NULL;
if (receive_http_content(req, &content) != ESP_OK) {
return ESP_FAIL;
}
int low_value = 0, up_value = 0;
if (parse_thresholds_json(content, &low_value, &up_value) != ESP_OK) {
free(content);
httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing or invalid 'low' or 'up' parameters");
return ESP_FAIL;
}
free(content);
if (low_value >= up_value) {
httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Low value must be less than up value");
return ESP_FAIL;
}
atomic_store(&g_threshold_low, low_value);
atomic_store(&g_threshold_up, up_value);
ESP_LOGI(TAG, "Thresholds updated: low: %d, up: %d", low_value, up_value);
return send_json_response(req, "{\"success\":true,\"low\":%d,\"up\":%d}", low_value, up_value);
}
void wifi_init_softap(void) {
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_t *ap_netif = esp_netif_create_default_wifi_ap();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
wifi_config_t wifi_config = {
.ap = {
.ssid = CONFIG_AP_WIFI_SSID,
.ssid_len = strlen(CONFIG_AP_WIFI_SSID),
.password = CONFIG_AP_WIFI_PASS,
.max_connection = AP_MAX_CONN,
.authmode = WIFI_AUTH_WPA_WPA2_PSK,
.channel = AP_CHANNEL,
},
};
if (strlen(CONFIG_AP_WIFI_PASS) == 0) {
wifi_config.ap.authmode = WIFI_AUTH_OPEN;
}
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_AP));
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &wifi_config));
ESP_ERROR_CHECK(esp_wifi_start());
esp_netif_ip_info_t ip_info;
ip_info.ip.addr = inet_addr(CONFIG_AP_IP);
ip_info.gw.addr = inet_addr(CONFIG_AP_GATEWAY);
ip_info.netmask.addr = inet_addr(CONFIG_AP_NETMASK);
ESP_ERROR_CHECK(esp_netif_dhcps_stop(ap_netif));
ESP_ERROR_CHECK(esp_netif_set_ip_info(ap_netif, &ip_info));
ESP_ERROR_CHECK(esp_netif_dhcps_start(ap_netif));
}
static void pump_disable(void) {
gpio_set_level(CONFIG_PUMP_PIN, false);
}
static void pump_enable(void) {
gpio_set_level(CONFIG_PUMP_PIN, true);
}
static void vPumpControlTask(void *pvParameters) {
esp_task_wdt_add(xTaskGetCurrentTaskHandle());
bool pump_enabled = false;
while (1) {
int current_pressure = atomic_load(&g_current_pressure);
int low_threshold = atomic_load(&g_threshold_low);
int up_threshold = atomic_load(&g_threshold_up);
if ((current_pressure < low_threshold) && (!pump_enabled)) {
pump_enable();
pump_enabled = true;
ESP_LOGI(TAG, "Pump enabled");
} else if ((current_pressure >= up_threshold) && pump_enabled) {
pump_disable();
pump_enabled = false;
ESP_LOGI(TAG, "Pump disabled");
}
esp_task_wdt_reset();
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
static int read_voltage_filtered(void) {
int sum = 0;
for (int i = 0; i < FILTER_SAMPLES; i++) {
sum += adc_read_voltage(SENSOR_ADC_CHAN);
vTaskDelay(pdMS_TO_TICKS(10));
}
return sum / FILTER_SAMPLES;
}
int map(int x, int in_min, int in_max, int out_min, int out_max) {
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}
static int convert_adc_to_pressure_atm(int adc_value) {
return map(adc_value, 330, 3145, 0, 1184);
}
static void vReadSensorTask(void *pvParameters) {
esp_task_wdt_add(xTaskGetCurrentTaskHandle());
while (1) {
int voltage = read_voltage_filtered();
int pressure = convert_adc_to_pressure_atm(voltage);
atomic_store(&g_current_pressure, pressure);
esp_task_wdt_reset();
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
static void register_http_handlers(httpd_handle_t server) {
httpd_uri_t root = {
.uri = "/",
.method = HTTP_GET,
.handler = root_get_handler,
.user_ctx = NULL
};
if (httpd_register_uri_handler(server, &root) != ESP_OK) {
ESP_LOGE(TAG, "Failed to register GET / handler");
}
httpd_uri_t pressure = {
.uri = "/pressure",
.method = HTTP_GET,
.handler = current_pressure_handler,
.user_ctx = NULL
};
if (httpd_register_uri_handler(server, &pressure) != ESP_OK) {
ESP_LOGE(TAG, "Failed to register GET /pressure handler");
}
httpd_uri_t get_thresholds = {
.uri = "/thresholds",
.method = HTTP_GET,
.handler = get_thresholds_handler,
.user_ctx = NULL
};
if (httpd_register_uri_handler(server, &get_thresholds) != ESP_OK) {
ESP_LOGE(TAG, "Failed to register GET /thresholds handler");
}
httpd_uri_t set_thresholds = {
.uri = "/thresholds",
.method = HTTP_POST,
.handler = set_thresholds_handler,
.user_ctx = NULL
};
if (httpd_register_uri_handler(server, &set_thresholds) != ESP_OK) {
ESP_LOGE(TAG, "Failed to register POST /thresholds handler");
}
httpd_uri_t save_thresholds = {
.uri = "/persist_thresholds",
.method = HTTP_POST,
.handler = save_thresholds_handler,
.user_ctx = NULL
};
if (httpd_register_uri_handler(server, &save_thresholds) != ESP_OK) {
ESP_LOGE(TAG, "Failed to register POST /persist_thresholds handler");
}
}
static void vHttpServerTask(void *pvParameters) {
esp_task_wdt_add(xTaskGetCurrentTaskHandle());
httpd_handle_t server = NULL;
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
config.server_port = CONFIG_WEBINTERFACE_PORT;
config.max_uri_handlers = 10;
config.stack_size = 4096;
if (httpd_start(&server, &config) == ESP_OK) {
ESP_LOGI(TAG, "🚀 HTTP server run on port %d", config.server_port);
register_http_handlers(server);
} else {
ESP_LOGE(TAG, "❌Error HTTP server running");
}
while (1) {
esp_task_wdt_reset();
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
static void load_thresholds_from_nvs(void) {
nvs_handle_t my_handle;
esp_err_t err = nvs_open(NVS_PARTITION, NVS_READWRITE, &my_handle);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Error opening NVS");
return;
}
int32_t threshold_low = 0;
err = nvs_get_i32(my_handle, THRESHOLD_LOW_NVS_NAME, &threshold_low);
if (err == ESP_OK) {
atomic_store(&g_threshold_low, threshold_low);
} else if (err == ESP_ERR_NVS_NOT_FOUND) {
atomic_store(&g_threshold_low, 100);
} else {
ESP_ERROR_CHECK(err);
}
int32_t threshold_up = 0;
err = nvs_get_i32(my_handle, THRESHOLD_UP_NVS_NAME, &threshold_up);
if (err == ESP_OK) {
atomic_store(&g_threshold_up, threshold_up);
} else if (err == ESP_ERR_NVS_NOT_FOUND) {
atomic_store(&g_threshold_up, 300);
} else {
ESP_ERROR_CHECK(err);
}
nvs_close(my_handle);
}
void app_main(void) {
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(ret);
load_thresholds_from_nvs();
ESP_ERROR_CHECK(adc_init());
ESP_ERROR_CHECK(pump_init());
wifi_init_softap();
vTaskDelay(pdMS_TO_TICKS(1000));
xTaskCreate(vReadSensorTask, "read_sensor", 2048, NULL, PRIORITY_SENSOR, NULL);
xTaskCreate(vPumpControlTask, "pump_control", 2048, NULL, PRIORITY_CONTROL, NULL);
xTaskCreate(vHttpServerTask, "http_server", 8192, NULL, PRIORITY_HTTP, NULL);
ESP_LOGI(TAG, "=========================================");
ESP_LOGI(TAG, "✅ Ready to work");
ESP_LOGI(TAG, "📱 Connect to Wi-Fi: %s", CONFIG_AP_WIFI_SSID);
ESP_LOGI(TAG, "🔑 Wi-Fi Password: %s", strlen(CONFIG_AP_WIFI_PASS) ? CONFIG_AP_WIFI_PASS : "Open network");
ESP_LOGI(TAG, "🌐 Open browser: http://%s:%d", CONFIG_AP_IP, CONFIG_WEBINTERFACE_PORT);
ESP_LOGI(TAG, "=========================================");
vTaskDelete(NULL);
}
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