164 lines
4.6 KiB
C
164 lines
4.6 KiB
C
/**
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* Author: Arthur Roberts (c) 2023
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*
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* License: GPLv3+
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*/
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#include "dht22.h"
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/projdefs.h"
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#include "freertos/task.h"
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#include "http.h"
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#include "nvs_flash.h"
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//#include "portmacro.h"
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#include "sdkconfig.h"
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#include "wifi.h"
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#include "http.h"
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#include <inttypes.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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static const char *TAG = "YASPAM";
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static volatile bool run_dht = true;
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static volatile bool run_pms5003 = true;
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static volatile bool run_ds18b20 = true;
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static TaskHandle_t dht22_handle = NULL;
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static TaskHandle_t pms5003_handle = NULL;
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static TaskHandle_t ds18b20_handle = NULL;
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#ifdef CONFIG_DS18B20_ENABLED
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#include "ds18b20.h"
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void read_from_ds18b20() {
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ESP_LOGI(TAG, "Starting DS18B20 Task");
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while (run_pms5003) {
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int ret = ds18b20_read();
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vTaskDelay(pdMS_TO_TICKS(CONFIG_DS18B20_PERIOD_POLL * 1000));
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}
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}
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#endif /* CONFIG_PMS5003_ENABLED */
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#ifdef CONFIG_PMS5003_ENABLED
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#include "pms5003.h"
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void read_from_pms5003() {
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while (run_pms5003) {
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int ret = pms5003_read();
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vTaskDelay(pdMS_TO_TICKS(CONFIG_PMS5003_PERIOD_POLL * 1000));
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}
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}
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#endif /* CONFIG_PMS5003_ENABLED */
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#ifdef CONFIG_DHT22_ENABLED
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#include "dht22.h"
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deci_percent dht22_rh;
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deci_degrees_c dht22_temp;
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void read_from_dht22() {
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// From datasheet:
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// - Don't start within 1 second of powering on
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vTaskDelay(pdMS_TO_TICKS(1000));
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ESP_LOGI(TAG, "Starting DHT22 Task");
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uint32_t num_samples_last_ten_mins = 0;
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float relative_humidity_tmp;
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float temperature_tmp;
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while (run_dht) {
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int ret = dht22_read();
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if (ret != DHT22_OK) {
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dht22_handle_error(ret);
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} else {
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dht22_temp = dht22_temperature();
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dht22_rh = dht22_relative_humidity();
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ESP_LOGI(TAG,
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"Sucesfully obtained DHT22 data (temp: %" PRIi16 " rh: %" PRIu16
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")",
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dht22_temp, dht22_rh);
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// No point collecting rolling average if we don't know what the time is
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if (has_ntp_time_obtained_once()) {
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if (num_samples_last_ten_mins == 0) {
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relative_humidity_tmp = dht22_rh;
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temperature_tmp = dht22_temp;
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} else {
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relative_humidity_tmp += ((float)dht22_rh - relative_humidity_tmp) /
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((float)num_samples_last_ten_mins + 1.0);
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temperature_tmp += ((float)dht22_temp - temperature_tmp) /
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((float)num_samples_last_ten_mins + 1.0);
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}
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num_samples_last_ten_mins += 1;
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ESP_LOGI(TAG, "latest_datapoint.temp: %" PRIi16, dht22_temp);
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ESP_LOGI(TAG, "ten_minute_average.temp: %f, num_samples: %" PRIu32,
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temperature_tmp, num_samples_last_ten_mins);
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// This should be: if (10 minutes of sample taken)
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// TODO: check max samples / second that can fit in 10 minutes
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/*
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if (num_samples_last_ten_mins >=
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((10 * 60) / (CONFIG_DHT22_PERIOD_POLL))) {
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*/
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if (num_samples_last_ten_mins >= 20) {
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ESP_LOGW(TAG, "10 minutes of samples collected. Average temp: %f",
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temperature_tmp);
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num_samples_last_ten_mins = 0;
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add_dht22_data(relative_humidity_tmp, temperature_tmp);
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// TODO: maybe push the data somewhere - or put a flag up that data
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// can be pushed
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// ^ could do a cute Semaphore thingy here - I don't think I've
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// actually used one before
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}
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}
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}
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vTaskDelay(pdMS_TO_TICKS(CONFIG_DHT22_PERIOD_POLL * 1000));
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}
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}
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#endif /* CONFIG DHT22_ENABLED */
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void app_main(void) {
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES ||
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ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK(ret);
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#ifdef CONFIG_DHT22_ENABLED
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xTaskCreate(read_from_dht22, "DHT22",
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4 * 1024, // honestly I have _no_ idea
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NULL,
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5, // no idea either
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&dht22_handle);
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#endif /* CONFIG_DHT22_ENABLED */
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#ifdef CONFIG_PMS5003_ENABLED
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xTaskCreate(read_from_pms5003, "PMS5003",
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4 * 1024, // honestly I have _no_ idea
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NULL,
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5, // no idea either
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&pms5003_handle);
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#endif /* CONFIG_PMS5003_ENABLED */
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#ifdef CONFIG_DS18B20_ENABLED
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xTaskCreate(read_from_ds18b20, "DS18B20",
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4 * 1024, // honestly I have _no_ idea
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NULL,
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5, // no idea either
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&ds18b20_handle);
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#endif /* CONFIG DS18B20_ENABLED */
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start_wifi();
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start_server();
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init_dht22_data();
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}
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