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Test with datapos shifts on CO2 readings

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Achim
2022-10-31 08:43:13 +07:00
parent 90eee5d17f
commit 84fe9c2575
1 changed files with 17 additions and 1 deletions
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18
AirGradient.cpp
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@ -667,6 +667,10 @@ int AirGradient::getCO2_Raw() {
const byte CO2Command[] = {0xFE, 0X44, 0X00, 0X08, 0X02, 0X9F, 0X25}; const byte CO2Command[] = {0xFE, 0X44, 0X00, 0X08, 0X02, 0X9F, 0X25};
byte CO2Response[] = {0,0,0,0,0,0,0}; byte CO2Response[] = {0,0,0,0,0,0,0};
// tt
int datapos = -1;
//
const int commandSize = 7; const int commandSize = 7;
int numberOfBytesWritten = _SoftSerial_CO2->write(CO2Command, commandSize); int numberOfBytesWritten = _SoftSerial_CO2->write(CO2Command, commandSize);
@ -690,8 +694,20 @@ int AirGradient::getCO2_Raw() {
// we have 7 bytes ready to be read // we have 7 bytes ready to be read
for (int i=0; i < commandSize; i++) { for (int i=0; i < commandSize; i++) {
CO2Response[i] = _SoftSerial_CO2->read(); CO2Response[i] = _SoftSerial_CO2->read();
// tt
if ((CO2Response[i] == 0xFE) && (datapos == -1)){
datapos = i;
}
Serial.print (CO2Response[i],HEX);
Serial.print (":");
//
} }
return CO2Response[3]*256 + CO2Response[4]; // return CO2Response[3]*256 + CO2Response[4];
// tt
return CO2Response[datapos + 3]*256 + CO2Response[datapos + 4];
//
} }
//END CO2 FUNCTIONS // //END CO2 FUNCTIONS //