Tasmota/tasmota/xsns_127_esp32_sensors.ino

146 lines
4.1 KiB
C++

/*
xsns_127_esp32_sensors.ino - ESP32 Temperature and Hall Effect sensor 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 ESP32
#ifdef USE_ESP32_SENSORS
#ifndef CONFIG_IDF_TARGET_ESP32S3
/*********************************************************************************************\
* ESP32 CPU Temperature and optional Hall Effect sensor
*
* To allow for not updating the global temperature by the ESP32 temperature sensor this
* driver needs to be the highest numbered driver (currently 127)
*
* ESP32 internal Hall Effect sensor connected to both GPIO36 and GPIO39
* To enable set
* GPIO36 as HallEffect 1
* GPIO39 as HallEffect 2
\*********************************************************************************************/
#define XSNS_127 127
#if CONFIG_IDF_TARGET_ESP32
#define HALLEFFECT_SAMPLE_COUNT 32 // 32 takes about 12 mS at 80MHz CPU frequency
struct {
bool present = false;
} HEData;
void Esp32SensorInit(void) {
if (PinUsed(GPIO_HALLEFFECT) && PinUsed(GPIO_HALLEFFECT, 1)) {
if (((36 == Pin(GPIO_HALLEFFECT)) && (39 == Pin(GPIO_HALLEFFECT, 1))) ||
((39 == Pin(GPIO_HALLEFFECT)) && (36 == Pin(GPIO_HALLEFFECT, 1)))) {
HEData.present = true;
hallRead();
}
}
}
#endif // CONFIG_IDF_TARGET_ESP32
void Esp32SensorShow(bool json) {
static bool add_global_temp = false;
if (json) {
add_global_temp = !ResponseContains_P(PSTR(D_JSON_TEMPERATURE));
}
float c = CpuTemperature(); // in Celsius
if (add_global_temp) {
UpdateGlobalTemperature(c);
}
float t = ConvertTempToFahrenheit(c);
#if CONFIG_IDF_TARGET_ESP32
int value = 0;
if (HEData.present) {
for (uint32_t i = 0; i < HALLEFFECT_SAMPLE_COUNT; i++) {
value += hallRead();
}
value /= HALLEFFECT_SAMPLE_COUNT;
}
#endif // CONFIG_IDF_TARGET_ESP32
if (json) {
bool temperature_present = (ResponseContains_P(PSTR(D_JSON_TEMPERATURE)));
ResponseAppend_P(PSTR(",\"ESP32\":{\"" D_JSON_TEMPERATURE "\":%*_f"), Settings->flag2.temperature_resolution, &t);
#if CONFIG_IDF_TARGET_ESP32
if (HEData.present) {
ResponseAppend_P(PSTR(",\"" D_JSON_HALLEFFECT "\":%d"), value);
}
#endif // CONFIG_IDF_TARGET_ESP32
ResponseJsonEnd();
#ifdef USE_DOMOTICZ
if (0 == TasmotaGlobal.tele_period) {
if (!temperature_present) { // Only send if no other sensor already did
DomoticzFloatSensor(DZ_TEMP, t);
}
#if CONFIG_IDF_TARGET_ESP32
if (HEData.present) {
DomoticzSensor(DZ_COUNT, value);
}
#endif // CONFIG_IDF_TARGET_ESP32
}
#endif // USE_DOMOTICZ
#ifdef USE_WEBSERVER
} else {
WSContentSend_Temp("ESP32", t);
#if CONFIG_IDF_TARGET_ESP32
if (HEData.present) {
WSContentSend_P(HTTP_SNS_HALL_EFFECT, "ESP32", value);
}
#endif // CONFIG_IDF_TARGET_ESP32
#endif // USE_WEBSERVER
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xsns127(uint8_t function) {
bool result = false;
switch (function) {
case FUNC_JSON_APPEND:
Esp32SensorShow(1);
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
Esp32SensorShow(0);
break;
#endif // USE_WEBSERVER
#if CONFIG_IDF_TARGET_ESP32
case FUNC_INIT:
Esp32SensorInit();
break;
#endif // CONFIG_IDF_TARGET_ESP32
}
return result;
}
#endif // Not CONFIG_IDF_TARGET_ESP32S3
#endif // USE_ESP32_SENSORS
#endif // ESP32