Arthur Roberts
ae598ea5b9
I think it could be with ISR... maybe? I'm not 100% what an interrupt actually realy is
113 lines
3.1 KiB
C
113 lines
3.1 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 <stdbool.h>
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#include <stdio.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 "dht22.h"
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#include "esp_log.h"
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#include "esp_wifi.h"
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#include "portmacro.h"
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static const char *TAG = "YASPAM";
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static EventGroupHandle_t s_monitor_event_group;
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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_data_collection = true;
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#ifdef CONFIG_DHT22_DATA_GPIO
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#define SENSOR_DHT22_BIT (1 << 0)
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#else
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#define SENSOR_DHT22_BIT 0
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#endif /* CONFIG_DHT22_DATA_GPIO */
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#ifdef CONFIG_PMS5003_ENABLED
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#define SENSOR_PMS5003_BIT (1 << 1)
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#else
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#define SENSOR_PMS5003_BIT 0
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#endif /* CONFIG_PMS5003_ENABLED */
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#define SENSOR_PMS5003_BIT (1 << 1)
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#define SENSOR_ALL SENSOR_DHT22_BIT | SENSOR_PMS5003_BIT
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// TODO - figure out how to continually call this, maybe make a task for it?
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void save_measurements() {
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while (run_data_collection) {
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EventBits_t bits = xEventGroupWaitBits(
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s_monitor_event_group,
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SENSOR_ALL,
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pdFALSE,
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pdFALSE,
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portMAX_DELAY);
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if (bits & SENSOR_DHT22_BIT) {
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deci_percent rh = dht22_relative_humidity();
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deci_degrees_c temp = dht22_temperature();
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// TODO - think about how to actually store this somewhere (for pushing and/or pulling)
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// and what sort of structures I could use
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ESP_LOGI(TAG, "Saved DHT data");
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xEventGroupClearBits(s_monitor_event_group, SENSOR_DHT22_BIT);
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}
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if (bits & SENSOR_PMS5003_BIT) {
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ESP_LOGI(TAG, "Saved PMS data");
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// TODO
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xEventGroupClearBits(s_monitor_event_group, SENSOR_PMS5003_BIT);
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}
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}
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}
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void read_from_pms5003() {
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while (run_pms5003) {
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// TODO - actually collect some data
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ESP_LOGI(TAG, "Got PMS5003 data! Setting PMS bit now!");
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xEventGroupSetBitsFromISR(s_monitor_event_group, SENSOR_PMS5003_BIT);
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vTaskDelay(pdMS_TO_TICKS(100)); // TODO: make this a config check
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}
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}
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void read_from_dht22() {
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while (run_dht) {
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// Data reading is based on time, so need to block interrups etc
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portDISABLE_INTERRUPTS();
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int ret = dht22_read();
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portENABLE_INTERRUPTS();
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ESP_LOGI(TAG, "Got DHT22 data! Setting DHT bit now!");
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xEventGroupSetBitsFromISR(s_monitor_event_group, SENSOR_DHT22_BIT);
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vTaskDelay(pdMS_TO_TICKS(3000)); // TODO: make this a config check
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}
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}
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void app_main(void) {
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s_monitor_event_group = xEventGroupCreate();
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xTaskCreate(read_from_dht22,
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"DHT22",
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1024, // honestly I have _no_ idea
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NULL,
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5, // no idea either
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NULL); // will probably change this so that I can cancel the delay
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xTaskCreate(read_from_pms5003,
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"PMS5003",
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1024, // honestly I have _no_ idea
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NULL,
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5, // no idea either
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NULL); // will probably change this so that I can cancel the delay
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xTaskCreate(save_measurements,
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"save_measurements",
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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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NULL); // will probably change this so that I can cancel the delay
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}
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