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Merge pull request #15361 from stibus/fix/SCD40 

Fix SCD40 start low power command
This commit is contained in:
Theo Arends 2022-04-13 16:31:10 +02:00 committed by GitHub
parent 942c2e9806 5ef4508618
commit 97a41afe14
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 30 additions and 32 deletions
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58
lib/lib_i2c/FrogmoreScd40/FrogmoreScd40.cpp
View File

@ -317,7 +317,7 @@ int FrogmoreScd40::readRegister(uint16_t registerAddress, uint16_t* pData)
void FrogmoreScd40::begin(TwoWire *pWire, uint8_t i2cAddress)
{
this->duringMeasurement = 0;
this->duringMeasurement = false;
this->i2cAddress = i2cAddress;
this->co2EAverage = 0;
if (pWire == NULL)
@ -373,10 +373,10 @@ int FrogmoreScd40::startPeriodicMeasurement(void)
snprintf_P(scd40log_data, sizeof(scd40log_data), "Start periodic measurement");
AddLog(LOG_LEVEL_DEBUG_MORE);
#endif
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
DuringMeasurement = 1;
duringMeasurement = true;
return(sendCommand(COMMAND_SCD40_START_PERIODIC_MEASUREMENT));
}
@ -387,7 +387,7 @@ int FrogmoreScd40::readMeasurement(
float *pHumidity
)
{
// Should only be called in DuringMeasurement mode or
// Should only be called in duringMeasurement mode or
// after calling measure_single_hot{,_rht_only}
// but this is currently not verified
bool isAvailable = false;
@ -522,16 +522,16 @@ int FrogmoreScd40::readMeasurement(
int FrogmoreScd40::forceStopPeriodicMeasurement(void)
{
DuringMeasurement = 0;
duringMeasurement = false;
return (sendCommand(COMMAND_SCD40_STOP_PERIODIC_MEASUREMENT));
}
int FrogmoreScd40::stopPeriodicMeasurement(void)
{
if (!DuringMeasurement) {
if (!duringMeasurement) {
return (ERROR_SCD40_NOT_IN_MEASUREMENT_MODE);
}
DuringMeasurement = 0;
duringMeasurement = false;
return (sendCommand(COMMAND_SCD40_STOP_PERIODIC_MEASUREMENT));
}
@ -541,7 +541,7 @@ int FrogmoreScd40::setTemperatureOffset(float offset_degC)
// influences RH and T readings. Does not influence CO2 measurement. Default is 4 degrees Celcius.
// to save setting to the EEPROM, call persistSetting()
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
if (offset_degC >= 0)
@ -557,7 +557,7 @@ int FrogmoreScd40::setTemperatureOffset(float offset_degC)
int FrogmoreScd40::setTemperatureOffset(uint16_t offset_centiDegC)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t offset_xDegC = (uint16_t) (offset_centiDegC * 3.74491);
@ -566,7 +566,7 @@ int FrogmoreScd40::setTemperatureOffset(uint16_t offset_centiDegC)
int FrogmoreScd40::getTemperatureOffset(float *pOffset_degC)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t value;
@ -581,7 +581,7 @@ int FrogmoreScd40::getTemperatureOffset(float *pOffset_degC)
int FrogmoreScd40::getTemperatureOffset(uint16_t *pOffset_centiDegC)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t value;
@ -598,7 +598,7 @@ int FrogmoreScd40::setSensorAltitude(uint16_t height_meter)
// Default is 0 meter above sea-level;
// to save setting to the EEPROM, call persistSetting()
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommandArguments(COMMAND_SCD40_SET_SENSOR_ALTITUDE, height_meter));
@ -606,7 +606,7 @@ int FrogmoreScd40::setSensorAltitude(uint16_t height_meter)
int FrogmoreScd40::getSensorAltitude(uint16_t *pHeight_meter)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (readRegister(COMMAND_SCD40_GET_SENSOR_ALTITUDE, pHeight_meter));
@ -615,7 +615,7 @@ int FrogmoreScd40::getSensorAltitude(uint16_t *pHeight_meter)
int FrogmoreScd40::setAmbientPressure(uint16_t airPressure_mbar)
// Overrides any pressure compensation based on a previously set sensor altitude
{
// allowed DuringMeasurement
// allowed duringMeasurement
return (sendCommandArguments(COMMAND_SCD40_SET_AMBIENT_PRESSURE, airPressure_mbar));
}
@ -627,7 +627,7 @@ int FrogmoreScd40::performForcedRecalibration(uint16_t co2_ppm)
// issue stop_periodic_measurement, and then wait 500ms, before calling this function
// it takes 400ms for this command to complete
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t FRC_result;
@ -642,7 +642,7 @@ int FrogmoreScd40::performForcedRecalibration(uint16_t co2_ppm)
int FrogmoreScd40::setAutomaticSelfCalibrationDisabled(void)
// to save setting to the EEPROM, call persistSetting()
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
bool isAuto = false;
@ -652,7 +652,7 @@ int FrogmoreScd40::setAutomaticSelfCalibrationDisabled(void)
int FrogmoreScd40::setAutomaticSelfCalibrationEnabled(void)
// to save setting to the EEPROM, call persistSetting()
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
bool isAuto = true;
@ -662,7 +662,7 @@ int FrogmoreScd40::setAutomaticSelfCalibrationEnabled(void)
int FrogmoreScd40::setAutomaticSelfCalibrationEnabled(bool isAuto)
// to save setting to the EEPROM, call persistSetting()
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
bool value = !!isAuto; // using NOT operator twice makes sure value is 0 or 1
@ -671,7 +671,7 @@ int FrogmoreScd40::setAutomaticSelfCalibrationEnabled(bool isAuto)
int FrogmoreScd40::getAutomaticSelfCalibrationEnabled(uint16_t *pIsAuto)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t value = 0;
@ -688,16 +688,16 @@ int FrogmoreScd40::getAutomaticSelfCalibrationEnabled(uint16_t *pIsAuto)
int FrogmoreScd40::startLowPowerPeriodicMeasurement(void)
// Comment: unclear how to stop this operation mode?
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
duringMeasurement = true;
return (sendCommand(COMMAND_SCD40_START_LOW_POWER_PERIODIC_MEASUREMENT));
DuringMeasurement = 1;
}
int FrogmoreScd40::getDataReadyStatus(bool *pIsAvailable)
{
// allowed DuringMeasurement
// allowed duringMeasurement
uint16_t isDataAvailable = false;
int error = readRegister(COMMAND_SCD40_GET_DATA_READY_STATUS, &isDataAvailable);
if (!error)
@ -715,7 +715,7 @@ int FrogmoreScd40::persistSettings(void)
// EEPROM is guaranteed to endure at least 2000 write cycles before failure.
// The field calibration history (FRC and ASC) is stored in a separate EEPROM.
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommand(COMMAND_SCD40_PERSIST_SETTINGS));
@ -724,7 +724,7 @@ int FrogmoreScd40::persistSettings(void)
int FrogmoreScd40::getSerialNumber(uint16_t *pSerialNumberArray)
// Serialnr is 48 bits = 3 16-bit words
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
uint16_t value;
@ -734,7 +734,7 @@ int FrogmoreScd40::getSerialNumber(uint16_t *pSerialNumberArray)
int FrogmoreScd40::performSelfTest(uint16_t *pMalfunction)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (readRegister(COMMAND_SCD40_PERFORM_SELF_TEST, pMalfunction));
@ -744,7 +744,7 @@ int FrogmoreScd40::performFactoryReset(void)
// resets all configuration settings in EEPROM and
// erases FRC and ASC algorithm history
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommand(COMMAND_SCD40_PERFORM_FACTORY_RESET));
@ -753,7 +753,7 @@ int FrogmoreScd40::performFactoryReset(void)
int FrogmoreScd40::reinit(void)
// reinitailizes sensor from EEPROM user settings
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommand(COMMAND_SCD40_REINIT));
@ -764,7 +764,7 @@ int FrogmoreScd40::reinit(void)
int FrogmoreScd40::measureSingleShot(void)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommand(COMMAND_SCD40_MEASURE_SINGLE_SHOT));
@ -772,7 +772,7 @@ int FrogmoreScd40::measureSingleShot(void)
int FrogmoreScd40::measureSingleShotRhtOnly(void)
{
if (DuringMeasurement) {
if (duringMeasurement) {
return (ERROR_SCD40_BUSY_MEASURING);
}
return (sendCommand(COMMAND_SCD40_MEASURE_SINGLE_SHOT_RHT_ONLY));

4
lib/lib_i2c/FrogmoreScd40/FrogmoreScd40.h
View File

@ -93,14 +93,12 @@ class FrogmoreScd40
int measureSingleShotRhtOnly(void);
private:
uint8_t duringMeasurement;
bool duringMeasurement;
uint8_t i2cAddress;
TwoWire *pWire;
uint16_t co2AvgExtra;
uint16_t co2History[SCD40_MEDIAN_FILTER_SIZE];
uint16_t co2EAverage;
int8_t co2NewDataLocation; // location to put new CO2 data for median filter
bool DuringMeasurement;
uint8_t computeCRC8(uint8_t data[], uint8_t len);
uint16_t medianfilter(uint16_t * p);