DigitalInfinity/ESP32-PaxCounter
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Update sds011read.cpp

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August Quint 2020-02-03 15:26:57 +01:00 committed by GitHub
parent f70cfbcc89
commit 8fe69a9130
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1 changed files with 34 additions and 8 deletions
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src/sds011read.cpp
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@ -6,12 +6,16 @@ static const char TAG[] = __FILE__;
#include <sds011read.h> #include <sds011read.h>
// UART(2) is unused in this project // UART(2) is unused in this project
#if (HAS_IF482)
#error cannot use IF482 together with SDS011 (both use UART#2)
#endif
static HardwareSerial sdsSerial(2); // so we use it here static HardwareSerial sdsSerial(2); // so we use it here
static SDS011 sdsSensor; // fine dust sensor static SDS011 sdsSensor; // fine dust sensor
// the results of the sensor: // the results of the sensor:
float pm25; float pm25;
float pm10; float pm10;
boolean isSDS011Active;
// init // init
bool sds011_init() bool sds011_init()
@ -19,18 +23,40 @@ bool sds011_init()
pm25 = pm10 = 0.0; pm25 = pm10 = 0.0;
sdsSerial.begin(9600, SERIAL_8N1, ESP_PIN_RX, ESP_PIN_TX); sdsSerial.begin(9600, SERIAL_8N1, ESP_PIN_RX, ESP_PIN_TX);
sdsSensor.begin (&sdsSerial); sdsSensor.begin (&sdsSerial);
sdsSensor.contmode(0); // for safety: wakeup/sleep - if we want it we do it by ourselves sdsSensor.contmode(0); // for safety: no wakeup/sleep by the sensor
sdsSensor.wakeup(); // always wake up sds011_sleep(); // we do it by ourselves
return true; return true;
} }
// reading data: // reading data:
void sds011_loop() void sds011_loop()
{ {
pm25 = pm10 = 0.0; if ( isSDS011Active ) {
int sdsErrorCode = sdsSensor.read(&pm25, &pm10); int sdsErrorCode = sdsSensor.read(&pm25, &pm10);
if (!sdsErrorCode) if (sdsErrorCode) {
{ pm25 = pm10 = 0.0;
ESP_LOGD(TAG, "SDS011 error: %d", sdsErrorCode); ESP_LOGI(TAG, "SDS011 error: %d", sdsErrorCode);
}
else {
ESP_LOGI(TAG, "fine-dust-values: %5.1f,%4.1f", pm10, pm25);
}
sds011_sleep();
} }
return; return;
} }
// putting the SDS-sensor to sleep
void sds011_sleep(void)
{
sdsSensor.sleep();
isSDS011Active = false;
}
// start the SDS-sensor
// needs 30 seconds for warming up
void sds011_wakeup()
{
if ( !isSDS011Active ) {
sdsSensor.wakeup();
isSDS011Active = true;
}
}