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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>
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*
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Theengs OpenMQTTGateway - We Unite Sensors in One Open-Source Interface
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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 the MQ2 GAS Sensor Addon based on modules with a MQ:
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- Measures flammable gas
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- Required Hardware Module: MQ2
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Connection Scheme:
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--------------------
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MQ-2 -------> ESP8266
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==============================================
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Vcc ---------> 3.3V or 5V
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GND ---------> GND
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A0 ----------> A0
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D0 ----------> D4
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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 ZsensorMQ2
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# include "TheengsCommon.h"
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# include "Wire.h"
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# include "config_MQ2.h"
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# include "math.h"
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//Time used to wait for an interval before resending measured values
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unsigned long timemq2 = 0;
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void setupZsensorMQ2() {
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THEENGS_LOG_NOTICE(F("Setup MQ2 detection on pin: %d" CR), MQ2SENSORDETECTPIN);
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pinMode(MQ2SENSORDETECTPIN, INPUT); // declare GPIOInput pin as input_pullup to prevent floating. Pin will be high when not connected to ground
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THEENGS_LOG_NOTICE(F("Starting MQ2 calibration on pin: %d" CR), MQ2SENSORADCPIN);
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//Simple calibrate
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float sensorValue;
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for (int x = 0; x < 1000; x++) {
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analogRead(MQ2SENSORADCPIN);
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}
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delay(1000);
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THEENGS_LOG_TRACE(F("MQ2 Initialized." CR));
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}
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void MeasureGasMQ2() {
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if (millis() > (timemq2 + TimeBetweenReadingmq2)) {
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timemq2 = millis();
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THEENGS_LOG_TRACE(F("Creating MQ2 buffer" CR));
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StaticJsonDocument<JSON_MSG_BUFFER> MQ2dataBuffer;
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JsonObject MQ2data = MQ2dataBuffer.to<JsonObject>();
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MQ2data["gas"] = analogRead(MQ2SENSORADCPIN);
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MQ2data["detected"] = digitalRead(MQ2SENSORDETECTPIN) == HIGH ? "false" : "true";
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MQ2data["origin"] = subjectMQ2toMQTT;
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enqueueJsonObject(MQ2data);
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}
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}
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#endif
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