Tasmota/tasmota/xsns_87_esp32_sensors.ino

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/*
xsns_87_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
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// Below test to solve ESP32-C3 compilations (20210420)
#if CONFIG_IDF_TARGET_ESP32
/*********************************************************************************************\
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* ESP32 CPU Temperature and optional Hall Effect sensor
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*
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* ESP32 internal Hall Effect sensor connected to both GPIO36 and GPIO39
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* To enable set
* GPIO36 as HallEffect 1
* GPIO39 as HallEffect 2
\*********************************************************************************************/
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#define XSNS_87 87
#if CONFIG_IDF_TARGET_ESP32
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#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)) {
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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) {
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float t = CpuTemperature();
#if CONFIG_IDF_TARGET_ESP32
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int value = 0;
if (HEData.present) {
for (uint32_t i = 0; i < HALLEFFECT_SAMPLE_COUNT; i++) {
value += hallRead();
}
value /= HALLEFFECT_SAMPLE_COUNT;
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}
#endif // CONFIG_IDF_TARGET_ESP32
if (json) {
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bool temperature_present = (ResponseContains_P(PSTR(D_JSON_TEMPERATURE)));
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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) {
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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 {
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WSContentSend_Temp("ESP32", t);
#if CONFIG_IDF_TARGET_ESP32
if (HEData.present) {
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WSContentSend_P(HTTP_SNS_HALL_EFFECT, "ESP32", value);
}
#endif // CONFIG_IDF_TARGET_ESP32
#endif // USE_WEBSERVER
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xsns87(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
case FUNC_INIT:
Esp32SensorInit();
break;
}
return result;
}
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#endif // CONFIG_IDF_TARGET_ESP32
#endif // ESP32