X-dark/esp32-env-monitor
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

only store baseline after 12 hours of initialization

Browse source
This commit is contained in:
Cedric Girard 2019-07-31 14:42:52 +02:00
parent 82f8485d82
commit bd35a357a1
Signed by: X-dark
GPG key ID: E7D0E125DB9519E4
1 changed files with 43 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
esp32-env-monitor.ino
View file

@ -65,6 +65,7 @@ uint32_t getAbsoluteHumidity(float temperature, float humidity) {
}
uint16_t TVOC_base, eCO2_base;
bool baseline_set = false;
void setup() {
@ -139,12 +140,20 @@ void setup() {
// RW-mode (second parameter has to be false).
preferences.begin("env-monitor", false);
baseline_set = preferences.getBool("baseline_set",false);
if (baseline_set){
TVOC_base = preferences.getUShort("TVOC_base",0);
eCO2_base = preferences.getUShort("eCO2_base",0);
if ( TVOC_base != 0 && eCO2_base != 0){
// If you have a baseline measurement from before you can assign it to start, to 'self-calibrate'
u8g2log.print("Found previous baseline\n");
sgp.setIAQBaseline(eCO2_base, TVOC_base);
u8g2log.print("Baseline values: eCO2: 0x");
u8g2log.print(eCO2_base, HEX);
u8g2log.print(" & TVOC: 0x");
u8g2log.print(TVOC_base, HEX);
u8g2log.print("\n");
}
}
preferences.end();
@ -154,7 +163,8 @@ void setup() {
}
int counter = 0;
int elapsed_minutes = 0;
int elapsed_hours = 0;
void loop() {
//Clear screen
@ -193,10 +203,12 @@ void loop() {
u8g2log.print(" ppm\n");
//Get Baseline readings every hour
counter++;
if (counter == 60) {
counter = 0;
if (elapsed_minutes == 60) {
elapsed_minutes = 0;
elapsed_hours++;
//only get baseline after running for 12h
if (elapsed_hours >= 12 ){
if (! sgp.getIAQBaseline(&eCO2_base, &TVOC_base)) {
u8g2log.print("Failed to get baseline readings\n");
return;
@ -211,15 +223,18 @@ void loop() {
// Namespace name is limited to 15 chars.
// RW-mode (second parameter has to be false).
preferences.begin("env-monitor", false);
preferences.putBool("baseline_set",true);
preferences.putUShort("TVOC_base", TVOC_base);
preferences.putUShort("eCO2_base", eCO2_base);
preferences.end();
}
}
//wait 1min
delay(60000);
elapsed_minutes++;
}