92 lines
1.9 KiB
C++
92 lines
1.9 KiB
C++
#ifndef SENSOR2_DALLAS_SENSOR_H
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#define SENSOR2_DALLAS_SENSOR_H
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#include "base.h"
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#include "Dallas.h"
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#include "wifi.h"
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#include "mqtt.h"
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#include "data.h"
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class DallasSensor {
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private:
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Dallas &sensors;
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uint64_t address;
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const double valueThreshold;
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const time_t timeoutSec;
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const time_t minIntervalMillis;
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double lastSentValue = NAN;
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unsigned long lastSentMillis = 0;
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double lastValue = NAN;
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time_t lastTimestamp = 0;
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double lastValidValue = NAN;
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time_t lastValidTimestamp = 0;
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public:
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DallasSensor(Dallas &sensors, const uint64_t address, const double valueThreshold, const time_t timeoutSec, const time_t minIntervalMillis) :
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sensors(sensors),
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address(address),
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valueThreshold(valueThreshold),
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timeoutSec(timeoutSec),
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minIntervalMillis(minIntervalMillis) {
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// -
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}
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bool loop() {
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const time_t now = getTime();
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if (now - lastTimestamp > timeoutSec) {
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lastTimestamp = 0;
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lastValue = NAN;
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}
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if (sensors.isConverted()) {
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const double value = sensors.read(address);
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const time_t timestamp = sensors.getTimestamp();
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const unsigned long millisNow = millis();
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const bool doPublish = !isnan(value) && (abs(lastSentValue - value) >= valueThreshold || millisNow - lastSentMillis >= minIntervalMillis);
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if (doPublish) {
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lastSentValue = value;
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lastSentMillis = millisNow;
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}
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lastValue = value;
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lastTimestamp = timestamp;
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if (!isnan(value)) {
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lastValidValue = value;
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lastValidTimestamp = timestamp;
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}
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return doPublish;
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}
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return false;
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}
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[[nodiscard]] double getLastValue() const {
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return lastValue;
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}
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[[nodiscard]] time_t getLastTimestamp() const {
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return lastTimestamp;
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}
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[[nodiscard]] double getLastValidValue() const {
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return lastValidValue;
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}
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[[nodiscard]] time_t getLastValidTimestamp() const {
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return lastValidTimestamp;
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}
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};
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#endif
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