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optional calibration offset

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This commit is contained in:
gemu2015 2022-03-03 08:28:04 +01:00
parent fb829a58a3
commit 89527287f9
1 changed files with 28 additions and 5 deletions
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23
tasmota/xsns_53_sml.ino
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@ -1665,6 +1665,23 @@ uint32_t vbus_get_septet(uint8_t *cp) {
} }
char *skip_double(char *cp) {
if (*cp == '+' || *cp == '-') {
cp++;
}
while (*cp) {
if (*cp == '.') {
cp++;
}
if (!isdigit(*cp)) {
return cp;
}
cp++;
}
return 0;
}
void SML_Decode(uint8_t index) { void SML_Decode(uint8_t index) {
const char *mp=(const char*)meter_p; const char *mp=(const char*)meter_p;
int8_t mindex; int8_t mindex;
@ -2168,6 +2185,12 @@ void SML_Decode(uint8_t index) {
//AddLog(LOG_LEVEL_INFO, PSTR(">> %s"),mp); //AddLog(LOG_LEVEL_INFO, PSTR(">> %s"),mp);
// get scaling factor // get scaling factor
double fac = CharToDouble((char*)mp); double fac = CharToDouble((char*)mp);
// get optional offset to calibrate meter
char *cp = skip_double((char*)mp);
if (cp && (*cp == '+' || *cp == '-')) {
double offset = CharToDouble(cp);
meter_vars[vindex] += offset;
}
meter_vars[vindex] /= fac; meter_vars[vindex] /= fac;
SML_Immediate_MQTT((const char*)mp, vindex, mindex); SML_Immediate_MQTT((const char*)mp, vindex, mindex);
} }