arthurr/esp-air-monitor
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10 minute average complete

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Need to actually test it. I'm never confident with programming
and definitely not when writing C
This commit is contained in:
Arthur Roberts
2023-10-28 17:25:08 +01:00
parent ac1fcbc5a5
commit ebd2909d15
1 changed files with 14 additions and 3 deletions
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17
main/main.c
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@@ -5,6 +5,7 @@
*/
#include "dht22.h"
#include "sdkconfig.h"
#include "wifi.h"
#include "esp_log.h"
#include "esp_sntp.h"
@@ -61,7 +62,7 @@ typedef struct {
my_dht22_data latest_datapoint;
my_dht22_data ten_minute_rolling_average;
uint16_t num_samples_last_ten_mins = 0;
uint32_t num_samples_last_ten_mins = 0;
void read_from_dht22() {
while (run_dht) {
@@ -104,8 +105,18 @@ void read_from_dht22() {
(latest_datapoint.temp - ten_minute_rolling_average.temp) / num_samples_last_ten_mins;
}
num_samples_last_ten_mins += 1;
// TODO: If 10 minute average taken, save it and reset num_samples and ten_min_av
// TODO: Write the data out somewhere - into RAM maybe
// This should be: if (number of samples in 10 mins taken)
// This _will_ break if sampled too quickly, because we'll have more samples per 10 minutes
// than can be stored in a uint32 - I'll calculate what that is and perhaps raise a compile
// error if too high.
if (num_samples_last_ten_mins >=
(CONFIG_DHT22_PERIOD_POLL * 1000 * 60 * 10)) {
num_samples_last_ten_mins = 0;
// TODO: Write the data out somewhere - into RAM maybe
// TODO: maybe push the data somewhere - or put a flag up that data can be pushed
// ^ could do a cute Semaphore thingy here - I don't think I've actually used one before
}
}
}
vTaskDelay(pdMS_TO_TICKS(CONFIG_DHT22_PERIOD_POLL));