implement hs1101
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@ -37,6 +37,10 @@ build_flags =
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-D dataTCS34725_lux_minchange=20
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-D dataTCS34725_colortemp_minchange=100
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-D SENSOR_HS1101
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-D HS1101PIN=D5
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-D dataHS1101_minchange=2
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lib_deps =
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Adafruit BMP085 Library@1.1.0
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https://github.com/adafruit/Adafruit_TCS34725
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104
src/main.cpp
104
src/main.cpp
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@ -51,6 +51,17 @@ struct sensordata
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float value_pressureBMP=0;
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#endif
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#ifdef SENSOR_HS1101
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struct sensordata dataHS1101;
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float value_humidityHS1101=0;
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#define HUMARRAYSIZE 11
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//from HS1101 datasheet https://www.parallax.com/sites/default/files/downloads/27920-Humidity-Sensor-Datasheet.pdf
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static const unsigned int out_humidity[] = {1000,900,800,700,600,500,400,300,200,100,0}; //*10, gets later devided by 10
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static const unsigned int in_hs1101frequency[] = {6033,6186,6330,6468,6600,6728,6853,6976,7100,7224,7351};
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float getHumidity_HS1101(int pin);
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int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int val);
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#endif
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#ifdef SENSOR_BH1750
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//SCL=D1, SDA=D2
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#include <Wire.h>
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@ -154,6 +165,7 @@ struct sensordata
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#ifdef SENSOR_TCS34725
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#include "Adafruit_TCS34725.h"
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//Connect SCL to D1, SDA to D2, GND and 3v3
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Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
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bool tcs34725init_ok=false;
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struct sensordata dataTCS34725_lux;
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@ -212,6 +224,13 @@ void setup() {
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#endif
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#endif
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#ifdef SENSOR_HS1101
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Serial.println("initializing hs1101");
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#ifdef dataHS1101_minchange
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dataHS1101.minchange=dataHS1101_minchange;
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#endif
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#endif
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#ifdef SENSOR_BH1750
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Serial.println("initializing bh1750");
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Wire.begin();
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@ -321,6 +340,14 @@ void setup() {
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sensorNode.advertise("humidity");
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#endif
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#ifdef SENSOR_HS1101
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#if defined(SENSOR_DHT22)
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sensorNode.advertise("humidity_hs1101");
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#else
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sensorNode.advertise("humidity");
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#endif
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#endif
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#ifdef SENSOR_BH1750
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sensorNode.advertise("light");
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lightMeter.readLightLevel(); //make first reading, could be 0
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@ -494,6 +521,41 @@ void loop_BMP180_pressure()
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}
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#endif
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#ifdef SENSOR_HS1101
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void loop_HS1101() {
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sensordata &d=dataHS1101;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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value_humidityHS1101 = getHumidity_HS1101(HS1101PIN); //hum %
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if (fabs(d.lastsentvalue-value_humidityHS1101)>=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 HS1101. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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checkESPStatus();
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#if defined(SENSOR_DHT22)
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Homie.getLogger() << "humidity hs1101 " << ": " << value_humidityHS1101 << endl;
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sensorNode.setProperty("humidity_hs1101").send(String(value_humidityHS1101));
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#else
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Homie.getLogger() << "humidity " << ": " << value_humidityHS1101 << endl;
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sensorNode.setProperty("humidity").send(String(value_humidityHS1101));
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#endif
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d.lastsentvalue=value_humidityHS1101;
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d.lastsent=millis();
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}
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}
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#endif
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#ifdef SENSOR_BH1750
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void loop_BH1750()
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{
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@ -768,6 +830,10 @@ void loopHandler() {
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}
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#endif
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#ifdef SENSOR_HS1101
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loop_HS1101();
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#endif
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#ifdef SENSOR_BH1750
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if (bh1750init_ok) {
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loop_BH1750();
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@ -933,4 +999,40 @@ void readSDS018()
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sds018_swSerial.flush();
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}
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}
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#endif
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#endif
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#ifdef SENSOR_HS1101
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float getHumidity_HS1101(int pin) {
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#define HS1101_SAMPLES 512
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double freq = 0;
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//for(unsigned int j=0; j<SAMPLES; j++) freq+= 500000/pulseIn(pin, LOW, 1000);
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for(unsigned int j=0; j<HS1101_SAMPLES; j++) freq+= 1000000/(pulseIn(pin, HIGH, 1000)+pulseIn(pin, LOW, 1000)); //both high and low because signal has not 50% duty cycle
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freq=freq / HS1101_SAMPLES;
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if (freq>2000 && freq<10000){ //in roughly valid range
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return get_mapped(in_hs1101frequency,out_humidity,HUMARRAYSIZE, freq )/10.0;
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}else{ //error
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return -1;
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}
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}
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//quelle: https://groups.google.com/forum/#!topic/souliss/1kMAltPB2ME[1-25]
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int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int val) //map with constrain
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{
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// take care the value is within range
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// val = constrain(val, _in[0], _in[size-1]);
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if (val <= _in[0]) return _out[0];
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if (val >= _in[size-1]) return _out[size-1];
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// search right interval
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byte pos = 1; // _in[0] allready tested
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while(val > _in[pos]) pos++;
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// this will handle all exact "points" in the _in array
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if (val == _in[pos]) return _out[pos];
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// interpolate in the right segment for the rest
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return map(val, _in[pos-1], _in[pos], _out[pos-1], _out[pos]);
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}
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#endif
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