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implement hs1101

master
interfisch 2 years ago
parent
commit
fcfd626dbe
  1. 4
      platformio.ini
  2. 104
      src/main.cpp

4
platformio.ini

@ -37,6 +37,10 @@ build_flags = @@ -37,6 +37,10 @@ build_flags =
-D dataTCS34725_lux_minchange=20
-D dataTCS34725_colortemp_minchange=100
-D SENSOR_HS1101
-D HS1101PIN=D5
-D dataHS1101_minchange=2
lib_deps =
Adafruit BMP085 Library@1.1.0
https://github.com/adafruit/Adafruit_TCS34725

104
src/main.cpp

@ -51,6 +51,17 @@ struct sensordata @@ -51,6 +51,17 @@ struct sensordata
float value_pressureBMP=0;
#endif
#ifdef SENSOR_HS1101
struct sensordata dataHS1101;
float value_humidityHS1101=0;
#define HUMARRAYSIZE 11
//from HS1101 datasheet https://www.parallax.com/sites/default/files/downloads/27920-Humidity-Sensor-Datasheet.pdf
static const unsigned int out_humidity[] = {1000,900,800,700,600,500,400,300,200,100,0}; //*10, gets later devided by 10
static const unsigned int in_hs1101frequency[] = {6033,6186,6330,6468,6600,6728,6853,6976,7100,7224,7351};
float getHumidity_HS1101(int pin);
int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int val);
#endif
#ifdef SENSOR_BH1750
//SCL=D1, SDA=D2
#include <Wire.h>
@ -154,6 +165,7 @@ struct sensordata @@ -154,6 +165,7 @@ struct sensordata
#ifdef SENSOR_TCS34725
#include "Adafruit_TCS34725.h"
//Connect SCL to D1, SDA to D2, GND and 3v3
Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
bool tcs34725init_ok=false;
struct sensordata dataTCS34725_lux;
@ -212,6 +224,13 @@ void setup() { @@ -212,6 +224,13 @@ void setup() {
#endif
#endif
#ifdef SENSOR_HS1101
Serial.println("initializing hs1101");
#ifdef dataHS1101_minchange
dataHS1101.minchange=dataHS1101_minchange;
#endif
#endif
#ifdef SENSOR_BH1750
Serial.println("initializing bh1750");
Wire.begin();
@ -321,6 +340,14 @@ void setup() { @@ -321,6 +340,14 @@ void setup() {
sensorNode.advertise("humidity");
#endif
#ifdef SENSOR_HS1101
#if defined(SENSOR_DHT22)
sensorNode.advertise("humidity_hs1101");
#else
sensorNode.advertise("humidity");
#endif
#endif
#ifdef SENSOR_BH1750
sensorNode.advertise("light");
lightMeter.readLightLevel(); //make first reading, could be 0
@ -494,6 +521,41 @@ void loop_BMP180_pressure() @@ -494,6 +521,41 @@ void loop_BMP180_pressure()
}
#endif
#ifdef SENSOR_HS1101
void loop_HS1101() {
sensordata &d=dataHS1101;
bool _changed=false;
if (millis() >= (d.lastreadtime+d.readdelay)) {
value_humidityHS1101 = getHumidity_HS1101(HS1101PIN); //hum %
if (fabs(d.lastsentvalue-value_humidityHS1101)>=d.minchange){
_changed=true;
}
d.lastreadtime=millis();
}
if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
Serial.print("Sending HS1101. reason=");
if (_changed) Serial.println("change"); else Serial.println("time");
checkESPStatus();
#if defined(SENSOR_DHT22)
Homie.getLogger() << "humidity hs1101 " << ": " << value_humidityHS1101 << endl;
sensorNode.setProperty("humidity_hs1101").send(String(value_humidityHS1101));
#else
Homie.getLogger() << "humidity " << ": " << value_humidityHS1101 << endl;
sensorNode.setProperty("humidity").send(String(value_humidityHS1101));
#endif
d.lastsentvalue=value_humidityHS1101;
d.lastsent=millis();
}
}
#endif
#ifdef SENSOR_BH1750
void loop_BH1750()
{
@ -768,6 +830,10 @@ void loopHandler() { @@ -768,6 +830,10 @@ void loopHandler() {
}
#endif
#ifdef SENSOR_HS1101
loop_HS1101();
#endif
#ifdef SENSOR_BH1750
if (bh1750init_ok) {
loop_BH1750();
@ -933,4 +999,40 @@ void readSDS018() @@ -933,4 +999,40 @@ void readSDS018()
sds018_swSerial.flush();
}
}
#endif
#endif
#ifdef SENSOR_HS1101
float getHumidity_HS1101(int pin) {
#define HS1101_SAMPLES 512
double freq = 0;
//for(unsigned int j=0; j<SAMPLES; j++) freq+= 500000/pulseIn(pin, LOW, 1000);
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
freq=freq / HS1101_SAMPLES;
if (freq>2000 && freq<10000){ //in roughly valid range
return get_mapped(in_hs1101frequency,out_humidity,HUMARRAYSIZE, freq )/10.0;
}else{ //error
return -1;
}
}
//quelle: https://groups.google.com/forum/#!topic/souliss/1kMAltPB2ME[1-25]
int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int val) //map with constrain
{
// take care the value is within range
// val = constrain(val, _in[0], _in[size-1]);
if (val <= _in[0]) return _out[0];
if (val >= _in[size-1]) return _out[size-1];
// search right interval
byte pos = 1; // _in[0] allready tested
while(val > _in[pos]) pos++;
// this will handle all exact "points" in the _in array
if (val == _in[pos]) return _out[pos];
// interpolate in the right segment for the rest
return map(val, _in[pos-1], _in[pos], _out[pos-1], _out[pos]);
}
#endif

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