mirror of
https://github.com/1technophile/OpenMQTTGateway.git
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32174e37a5
By building only the log level required into LOG_LEVEL Co-authored-by: Florian <1technophile@users.noreply.github.com>
102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*
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OpenMQTTGateway Addon - ESP8266 or Arduino program for home automation
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Act as a gateway between your 433mhz, infrared IR, BLE, LoRa signal and one interface like an MQTT broker
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Send and receiving command by MQTT
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This is a Temperature Addon:
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- Measures Temperature
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- Generates Values for: Temperature in degrees C and F
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- Required Hardware Module: LM75 or NCT75
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- Required Library: jeremycole/I2C Temperature Sensors derived from the LM75
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Connection Schemata:
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--------------------
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LM75 ------> ESP8266
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==============================================
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Vcc ---------> Vu (5V)
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GND ---------> GND
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SCL ---------> D1
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SDA ---------> D2
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This file is part of OpenMQTTGateway.
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OpenMQTTGateway 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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OpenMQTTGateway 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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#include "User_config.h"
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#ifdef ZsensorLM75
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# include <stdint.h>
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# include "Temperature_LM75_Derived.h"
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# include "TheengsCommon.h"
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# include "Wire.h" // Library for communication with I2C / TWI devices
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# include "config_LM75.h"
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//Time used to wait for an interval before resending measured values
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unsigned long timelm75 = 0;
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//Global sensor object
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Generic_LM75 lm75Sensor;
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void setupZsensorLM75() {
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delay(10); // Gives the Sensor enough time to turn on
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THEENGS_LOG_NOTICE(F("LM75 Initialized - begin()" CR));
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# if defined(ESP32)
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Wire.begin(I2C_SDA, I2C_SCL);
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# elif defined(ESP8266)
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Wire.begin();
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# endif
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}
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void MeasureTemp() {
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if (millis() > (timelm75 + TimeBetweenReadinglm75)) {
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THEENGS_LOG_TRACE(F("Read LM75 Sensor" CR));
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timelm75 = millis();
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static float persisted_lm75_tempc;
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float lm75TempC = lm75Sensor.readTemperatureC();
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if (lm75TempC >= 998) {
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THEENGS_LOG_ERROR(F("Failed to read from sensor LM75!" CR));
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return;
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}
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// Check if reads failed and exit early (to try again).
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if (isnan(lm75TempC)) {
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THEENGS_LOG_ERROR(F("Failed to read from sensor HLM75!" CR));
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} else {
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THEENGS_LOG_NOTICE(F("Creating LM75 buffer" CR));
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StaticJsonDocument<JSON_MSG_BUFFER> LM75dataBuffer;
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JsonObject LM75data = LM75dataBuffer.to<JsonObject>();
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// Generate Temperature in degrees C
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if (lm75TempC != persisted_lm75_tempc || lm75_always) {
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float lm75TempF = (lm75TempC * 1.8) + 32;
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LM75data["tempc"] = (float)lm75TempC;
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LM75data["tempf"] = (float)lm75TempF;
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LM75data["origin"] = LM75TOPIC;
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enqueueJsonObject(LM75data);
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} else {
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THEENGS_LOG_NOTICE(F("Same Temp. Don't send it" CR));
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}
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}
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persisted_lm75_tempc = lm75TempC;
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}
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}
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#endif
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