112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
#ifdef SENSOR_HTU21D
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//Connect SCL to D1, SDA to D2, GND and 3v3
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#include "sensor_htu21d.h"
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#include <Adafruit_HTU21DF.h>
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Sensor_HTU21D::Sensor_HTU21D()
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{
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htu = new Adafruit_HTU21DF();
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}
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void Sensor_HTU21D::init() //Things to be done during setup()
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{
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Serial.println("initializing HTU21D");
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if (!htu->begin()) {
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Serial.println("#ERROR: HTU21D init fail\n");
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}else{
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init_ok=true; //stays false if init failed, sensor will not be read in loop
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}
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}
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//Also called during setup()
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void Sensor_HTU21D::setSettings_Temperature(float minchange, unsigned long senddelaymax, unsigned long readdelay)
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{
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data_temperature.minchange=minchange;
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data_temperature.senddelaymax=senddelaymax;
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data_temperature.readdelay=readdelay;
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}
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//Also called during setup()
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void Sensor_HTU21D::setSettings_Humidity(float minchange, unsigned long senddelaymax, unsigned long readdelay)
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{
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data_humidity.minchange=minchange;
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data_humidity.senddelaymax=senddelaymax;
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data_humidity.readdelay=readdelay;
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}
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//Called during setup
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void Sensor_HTU21D::advertise(HomieNode& p_sensorNode)
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{
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sensorNode = &p_sensorNode;
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sensorNode->advertise("temperature_htu");
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sensorNode->advertise("humidity_htu");
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}
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void Sensor_HTU21D::sensorloop()
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{
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if (init_ok) {
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loop_HTU21D_temperature();
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loop_HTU21D_humidity();
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}
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}
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void Sensor_HTU21D::loop_HTU21D_temperature()
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{
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sensordata &d=data_temperature;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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Serial.println("Reading htu21d temperature");
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d.value = htu->readTemperature();
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Serial.println(d.value);
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if (fabs(d.lastsentvalue-d.value)>=d.minchange){
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_changed=true;
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Serial.println("HTU temp changed");
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}
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d.lastreadtime=millis();
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}
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if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
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Serial.print("Sending HTU21D_temperature. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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if (!(isnan(d.value) == 1)){ //success
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sensorNode->setProperty("temperature_htu").send(String(d.value));
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Homie.getLogger() << "temperature_htu " << ": " << d.value << endl;
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d.lastsentvalue=d.value;
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}
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d.lastsent=millis();
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}
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}
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void Sensor_HTU21D::loop_HTU21D_humidity()
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{
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sensordata &d=data_humidity;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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d.value = htu->readHumidity();
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if (fabs(d.lastsentvalue-d.value)>=d.minchange){
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_changed=true;
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}
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d.lastreadtime=millis();
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}
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if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
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Serial.print("Sending HTU21D_humidity. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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if (!(isnan(d.value) == 1)){ //success
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sensorNode->setProperty("humidity_htu").send(String(d.value));
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Homie.getLogger() << "humidity_htu " << ": " << d.value << endl;
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d.lastsentvalue=d.value;
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}
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d.lastsent=millis();
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}
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}
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#endif |