mirror of https://github.com/arendst/Tasmota.git
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/*
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xsns_78_ezohum.ino - EZO HUM I2C HUM sensor support for Tasmota
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Copyright (C) 2021 Christopher Tremblay
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_I2C
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#ifdef USE_EZOHUM
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#define EZO_HUM_READ_LATENCY 300
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struct EZOHUM : public EZOStruct {
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EZOHUM(uint32_t addr) : EZOStruct(addr), humidity(NAN), temperature(NAN) {}
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virtual void ProcessMeasurement(void)
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{
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char data[D_EZO_MAX_BUF];
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// Hum, Temp, Dew
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EZOStruct::ProcessMeasurement(data, sizeof(data), EZO_HUM_READ_LATENCY);
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humidity = CharToFloat(data);
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char *next = strchr(data, ',');
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if (next) {
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temperature = CharToFloat(next + 1);
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}
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}
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virtual void Show(bool json, const char *name)
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{
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if (isnan(temperature)) {
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#ifdef USE_WEBSERVER
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char parameter[FLOATSZ];
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dtostrfd(humidity, Settings->flag2.humidity_resolution, parameter);
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WSContentSend_PD(HTTP_SNS_HUM, name, parameter);
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#endif // USE_WEBSERVER
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} else {
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TempHumDewShow(json, (0 == TasmotaGlobal.tele_period), name, temperature, humidity);
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}
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}
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static const char id[] PROGMEM;
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private:
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float humidity;
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float temperature;
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};
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const char EZOHUM::id[] PROGMEM = "HUM";
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#endif // USE_EZOHUM
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#endif // USE_I2C
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