implement tcs34725 light color sensor
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17eed1b279
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@ -30,12 +30,16 @@ monitor_speed = 115200
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build_flags =
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-D SENSOR_BMP180
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-D dataBMP180_temperature_minchange=0.2
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-D dataBMP180_pressure_minchange=0.1
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-D dataBMP180_temperature_minchange=0.5
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-D dataBMP180_pressure_minchange=0.5
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-D SENSOR_TCS34725
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-D dataTCS34725_lux_minchange=20
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-D dataTCS34725_colortemp_minchange=100
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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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ArduinoJson@6.16.1 #dependency of homie. using older version because of "ambiguous overload for operator|" error
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Homie@3.0.0
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@ -56,7 +60,7 @@ build_flags =
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-D SENSOR_BMP180
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-D dataBMP180_temperature_minchange=0.2
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-D dataBMP180_pressure_minchange=0.1
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-D dataBMP180_pressure_minchange=0.5
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-D SENSOR_PIR
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-D PIRPIN=D6
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131
src/main.cpp
131
src/main.cpp
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@ -43,6 +43,7 @@ struct sensordata
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#ifdef SENSOR_BMP180
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//Connect SCL to D1, SDA to D2, GND and 3v3
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#include <Adafruit_BMP085.h>
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bool bmp180init_ok=false;
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Adafruit_BMP085 bmp180;
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struct sensordata dataBMP180_temperature; //struct values are changed in setup()
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float value_temperatureBMP=0;
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@ -55,6 +56,7 @@ struct sensordata
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#include <Wire.h>
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#include <BH1750.h>
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BH1750 lightMeter(0x23);
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bool bh1750init_ok=false;
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sensordata dataBH1750;
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float value_lightBH1750=0;
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#endif
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@ -150,15 +152,20 @@ struct sensordata
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void readSDS018();
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#endif
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#ifdef SENSOR_TCS34725
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#include "Adafruit_TCS34725.h"
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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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struct sensordata dataTCS34725_colortemp;
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uint16_t value_colortemp, value_tcs_lux, value_tcs_r,value_tcs_g,value_tcs_b,value_tcs_c;
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unsigned long lastread_tcs34725=0;
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#endif
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// data/homie/config.json hochladen mit platformio run --target uploadfs
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// config contains homie device name, mqtt ip and wifi credentials
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/*
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float humidity; //[%RH] DHT
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float temperature; //[deg C] DHT
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float light; //[Lux] BH1750
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bool movement //true bei pir output hight, false wenn low HC12?501?
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*/
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@ -194,6 +201,8 @@ void setup() {
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Serial.println("initializing bmp180");
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if (!bmp180.begin()){
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Serial.println("#ERROR: BMP180 init fail\n\n");
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}else{
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bmp180init_ok=true; //stays false if init failed, sensor will not be read in loop
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}
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#ifdef dataBMP180_temperature_minchange
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dataBMP180_temperature.minchange=dataBMP180_temperature_minchange;
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@ -208,6 +217,7 @@ void setup() {
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Wire.begin();
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if (lightMeter.begin(BH1750::CONTINUOUS_HIGH_RES_MODE)) {
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Serial.println(F("BH1750 Advanced begin"));
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bh1750init_ok=true;
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} else {
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Serial.println(F("Error initialising BH1750"));
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}
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@ -279,6 +289,21 @@ void setup() {
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#endif
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#endif
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#ifdef SENSOR_TCS34725
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Serial.println("initializing tcs34725");
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if (!tcs.begin()) {
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Serial.println("No TCS34725 found!");
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}else{
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tcs34725init_ok=true;
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}
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#ifdef dataTCS34725_lux_minchange
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dataTCS34725_lux.minchange=dataTCS34725_lux_minchange;
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#endif
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#ifdef dataTCS34725_colortemp_minchange
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dataTCS34725_colortemp.minchange=dataTCS34725_colortemp_minchange;
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#endif
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#endif
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//Homie_setFirmware(FW_NAME, FW_VERSION);
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//Homie_setBrand(FW_NAME);
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@ -325,6 +350,15 @@ void setup() {
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sensorNode.advertise("dust_pm10");
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#endif
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#ifdef SENSOR_TCS34725
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#if defined(SENSOR_LDR) || defined(SENSOR_BH1750)
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sensorNode.advertise("light_tcs");
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#else
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sensorNode.advertise("light");
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#endif
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sensorNode.advertise("colortemp");
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#endif
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Serial.println("connecting..");
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Homie.setup();
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@ -650,6 +684,74 @@ void loop_SDS018_pm10()
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}
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#endif
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#ifdef SENSOR_TCS34725
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void loop_TCS34725_lux()
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{
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sensordata &d=dataTCS34725_lux;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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if (millis() >= (lastread_tcs34725+d.readdelay)) {
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tcs.getRawData(&value_tcs_r, &value_tcs_g, &value_tcs_b, &value_tcs_c);
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}
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value_tcs_lux = tcs.calculateLux(value_tcs_r, value_tcs_g, value_tcs_b);
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if (abs((int)d.lastsentvalue-value_tcs_lux)>=d.minchange){ //int abs
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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 TCS Lux. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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checkESPStatus();
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Homie.getLogger() << "light tcs " << ": " << value_tcs_lux << endl;
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#if defined(SENSOR_LDR) || defined(SENSOR_BH1750)
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sensorNode.setProperty("light_tcs").send(String(value_tcs_lux));
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#else
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sensorNode.setProperty("light").send(String(value_tcs_lux));
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#endif
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d.lastsentvalue=value_tcs_lux;
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d.lastsent=millis();
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}
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}
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void loop_TCS34725_colortemp()
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{
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sensordata &d=dataTCS34725_colortemp;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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if (millis() >= (lastread_tcs34725+d.readdelay)) {
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tcs.getRawData(&value_tcs_r, &value_tcs_g, &value_tcs_b, &value_tcs_c);
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}
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// colorTemp = tcs.calculateColorTemperature(r, g, b);
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value_colortemp = tcs.calculateColorTemperature_dn40(value_tcs_r, value_tcs_g, value_tcs_b, value_tcs_c);
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if (abs((int)d.lastsentvalue-value_colortemp)>=d.minchange){ //int abs
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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 TCS colortemp. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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checkESPStatus();
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Homie.getLogger() << "colortemp tcs " << ": " << value_colortemp << endl;
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sensorNode.setProperty("colortemp").send(String(value_colortemp));
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d.lastsentvalue=value_colortemp;
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d.lastsent=millis();
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}
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}
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#endif
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void loopHandler() {
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@ -660,12 +762,16 @@ void loopHandler() {
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#endif
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#ifdef SENSOR_BMP180
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loop_BMP180_temperature();
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loop_BMP180_pressure();
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if (bmp180init_ok) {
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loop_BMP180_temperature();
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loop_BMP180_pressure();
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}
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#endif
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#ifdef SENSOR_BH1750
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loop_BH1750();
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if (bh1750init_ok) {
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loop_BH1750();
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}
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#endif
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#ifdef SENSOR_LDR
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@ -685,6 +791,13 @@ void loopHandler() {
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loop_SDS018_pm10();
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#endif
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#ifdef SENSOR_TCS34725
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if (tcs34725init_ok) {
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loop_TCS34725_lux();
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loop_TCS34725_colortemp();
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}
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#endif
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}
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