Tasmota/tasmota/xsns_78_ezoph.ino

57 lines
1.4 KiB
C++

/*
xsns_78_ezoph.ino - EZO pH I2C pH sensor support for Tasmota
Copyright (C) 2020 Christopher Tremblay
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_I2C
#ifdef USE_EZOPH
#define EZO_PH_READ_LATENCY 900
struct EZOpH : public EZOStruct {
EZOpH(uint32_t addr) : EZOStruct(addr), pH(NAN) {}
virtual void ProcessMeasurement(void)
{
char data[D_EZO_MAX_BUF];
EZOStruct::ProcessMeasurement(data, sizeof(data), EZO_PH_READ_LATENCY);
pH = CharToFloat(data);
}
virtual void Show(bool json, const char *name)
{
char str[6];
dtostrfd(pH, 2, str);
if (json) {
ResponseAppend_P(PSTR(",\"%s\":{\"" D_JSON_PH "\":%s}" ), name, str);
}
#ifdef USE_WEBSERVER
else {
WSContentSend_PD(HTTP_SNS_PH, name, str);
#endif // USE_WEBSERVER
}
}
private:
float pH;
};
#endif // USE_EZOPH
#endif // USE_I2C