mirror of https://github.com/arendst/Tasmota.git
137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
/*
|
|
xsns_55_hih_series.ino - Honeywell HIH series temperature and humidity sensor support for Tasmota
|
|
|
|
Copyright (C) 2021 Theo Arends
|
|
|
|
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_HIH6
|
|
/*********************************************************************************************\
|
|
* HIH6130 - Temperature and Humidity
|
|
*
|
|
* https://sensing.honeywell.com/HIH6130-021-001-humidity-sensors
|
|
* https://sensing.honeywell.com/i2c-comms-humidicon-tn-009061-2-en-final-07jun12.pdf
|
|
* https://sensing.honeywell.com/command-mode-humidicon-tn-009062-3-en-final-07jun12.pdf
|
|
* https://github.com/ControlEverythingCommunity/HIH6130/blob/master/Arduino/HIH6130.ino
|
|
*
|
|
* I2C Address: 0x27
|
|
\*********************************************************************************************/
|
|
|
|
#define XSNS_55 55
|
|
#define XI2C_36 36 // See I2CDEVICES.md
|
|
|
|
#define HIH6_ADDR 0x27
|
|
|
|
struct HIH6 {
|
|
float temperature = 0;
|
|
float humidity = 0;
|
|
uint8_t valid = 0;
|
|
uint8_t type = 0;
|
|
char types[4] = "HIH";
|
|
} Hih6;
|
|
|
|
bool Hih6Read(void)
|
|
{
|
|
Wire.beginTransmission(HIH6_ADDR);
|
|
if (Wire.endTransmission() != 0) { return false; } // In case of error
|
|
|
|
delay(40); // Wait for Valid data (Stale data doesn't work. See #6808)
|
|
|
|
uint8_t data[4];
|
|
Wire.requestFrom(HIH6_ADDR, 4);
|
|
if (4 == Wire.available()) {
|
|
data[0] = Wire.read(); // Status and Humidity msb
|
|
data[1] = Wire.read(); // Humidity lsb
|
|
data[2] = Wire.read(); // Temp msb
|
|
data[3] = Wire.read(); // Temp lsb
|
|
} else { return false; }
|
|
|
|
// uint8_t status = data[0] >> 6; // 0 = Valid data, 1 = Stale data, 2 = Command mode, 3 = Not used
|
|
|
|
Hih6.humidity = ConvertHumidity(((float)(((data[0] & 0x3F) << 8) | data[1]) * 100.0) / 16383.0);
|
|
// Convert the data to 14-bits
|
|
int temp = ((data[2] << 8) | (data[3] & 0xFC)) / 4;
|
|
Hih6.temperature = ConvertTemp(((float)temp / 16384.0) * 165.0 - 40.0);
|
|
|
|
Hih6.valid = SENSOR_MAX_MISS;
|
|
return true;
|
|
}
|
|
|
|
/********************************************************************************************/
|
|
|
|
void Hih6Detect(void)
|
|
{
|
|
if (!I2cSetDevice(HIH6_ADDR)) { return; }
|
|
|
|
if (TasmotaGlobal.uptime < 2) { delay(20); } // Skip entering power on comand mode
|
|
Hih6.type = Hih6Read();
|
|
if (Hih6.type) {
|
|
I2cSetActiveFound(HIH6_ADDR, Hih6.types);
|
|
}
|
|
}
|
|
|
|
void Hih6EverySecond(void)
|
|
{
|
|
if (TasmotaGlobal.uptime &1) {
|
|
// HIH6130: 30mS
|
|
if (!Hih6Read()) {
|
|
AddLogMissed(Hih6.types, Hih6.valid);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Hih6Show(bool json)
|
|
{
|
|
if (Hih6.valid) {
|
|
TempHumDewShow(json, (0 == TasmotaGlobal.tele_period), Hih6.types, Hih6.temperature, Hih6.humidity);
|
|
}
|
|
}
|
|
|
|
/*********************************************************************************************\
|
|
* Interface
|
|
\*********************************************************************************************/
|
|
|
|
bool Xsns55(uint8_t function)
|
|
{
|
|
if (!I2cEnabled(XI2C_36)) { return false; }
|
|
|
|
bool result = false;
|
|
|
|
if (FUNC_INIT == function) {
|
|
Hih6Detect();
|
|
}
|
|
else if (Hih6.type) {
|
|
switch (function) {
|
|
case FUNC_EVERY_SECOND:
|
|
Hih6EverySecond();
|
|
break;
|
|
case FUNC_JSON_APPEND:
|
|
Hih6Show(1);
|
|
break;
|
|
#ifdef USE_WEBSERVER
|
|
case FUNC_WEB_SENSOR:
|
|
Hih6Show(0);
|
|
break;
|
|
#endif // USE_WEBSERVER
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
#endif // USE_HIH6
|
|
#endif // USE_I2C
|
|
|