Read sensor's data in separate function (out of main loop)

[Roberto6969]

If I use pm01basic sketch it works fine. But if I move read procedure out of void loop(void) to new readPMS() function I receiving CRC Error quite often. Even more: after 10 - 15 minutes I receiving "Pms error: CRC Error" all the time. How can I move read procedure out of main loop?

Thank You!

[Roberto6969]

Just found out working sketch (look at the commented lines):

include

using namespace pmsx;

PmsAltSerial pmsSerial; pmsx::Pms pms(&pmsSerial); PmsData data; ////////////////////////////////////////

// PMS5003 Pin 1 : VCC +5V // PMS5003 Pin 2 : GND // Important: pms5003 uses 3.3V logic.Use converters if required or make sure your Arduino board uses 3.3V logic too. // PMS5003 Pin 4 : Digital pin 9 (there is no choice, forced by AltSerial) // PMS5003 Pin 5 : Digital pin 8 (there is no choice, forced by AltSerial) // Optional // PMS5003 Pin 3 : Digital pin 7 (can be changed or not connected at all) // * PMS5003 Pin 6 : Digital pin 6 (can be changed or not connected at all)

// if PMS5003 Pin 3 and PMS5003 Pin 3 are not connected // constexpr uint8_t pinReset = pmsx::Pms::pinNone; // constexpr uint8_t pinSleepMode = pmsx::Pms::pinNone;

// if PMS5003 Pin 3 and PMS5003 Pin 3 are connected constexpr uint8_t pinReset = 6; constexpr uint8_t pinSleepMode = 7;

////////////////////////////////////////

void setup(void) { Serial.begin(115200); while (!Serial) {} Serial.println(pmsxApiVersion);

if (!pms.begin()) { Serial.println("PMS sensor: communication failed"); return; }

pms.setPinReset(pinReset); pms.setPinSleepMode(pinSleepMode);

if (!pms.write(PmsCmd::CMD_RESET)) { pms.write(PmsCmd::CMD_SLEEP); pms.write(PmsCmd::CMD_WAKEUP); } pms.write(PmsCmd::CMD_MODE_PASSIVE); pms.write(PmsCmd::CMD_READ_DATA); pms.waitForData(Pms::TIMEOUT_PASSIVE, PmsData::FRAME_SIZE); PmsData data; auto status = pms.read(data); if (status != PmsStatus::OK) { Serial.print("PMS sensor: "); Serial.println(status.getErrorMsg()); } pms.write(PmsCmd::CMD_MODE_ACTIVE); if (!pms.isWorking()) { Serial.println("PMS sensor failed"); }

Serial.print("Time of setup(): "); Serial.println(millis()); }

////////////////////////////////////////

void loop(void) { //Serial.println("Sem v void loop"); //Serial.println("Malo počakam 2000"); //delay(2000); //Serial.println("poženem readPMS"); readPMS(); }

void readPMS() { //static auto lastRead = millis(); //PmsData data; auto status = pms.read(data);

switch (status) { case PmsStatus::OK: { Serial.println("_____"); // const auto newRead = millis(); // Serial.print("Wait time "); // Serial.println(newRead - lastRead); // lastRead = newRead;

    auto view = data.particles;
    for (PmsData::pmsIdx_t i = 0; i < view.getSize(); ++i) {
      Serial.print(view.getValue(i));
      Serial.print("\t");
      Serial.print(view.getName(i));
      Serial.print(" [");
      Serial.print(view.getMetric(i));
      Serial.print("] ");
      Serial.print(" Level: ");
      Serial.print(view.getLevel(i));
      Serial.print(" | diameter: ");
      Serial.print(view.getDiameter(i));
      Serial.println();
    }
    break;
  }
case PmsStatus::NO_DATA:
  break;
default:
  Serial.print("!!! Pms error: ");
  Serial.println(status.getErrorMsg());

} }