add sensors

platformio.ini

@@ -8,9 +8,9 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:esp01_1m]
+[env:d1_mini]
 platform = espressif8266
-board = esp01_1m
+board = d1_mini
 framework = arduino
 
 monitor_port = /dev/ttyUSB0
@@ -19,5 +19,5 @@ monitor_speed = 115200
 
 lib_deps = 
     DHT sensor library@1.3.10
-    Adafruit BMP085 Library@1.1.0
+    BH1750@1.1.4
     Homie@3.0.0

src/main.cpp

@@ -1,71 +1,42 @@
 //#define DEBUG
 
-//ESP8266MOD als SMD Platine mit 1M Flash  board=esp01_1m, statt wemos_d1
-
-/*
- * To Update configuration (wifi credentials) from data/homie/config.json:
- * Connect to serial. On ESP-12E connect flash jumper
- * Apply Power to ESP
- * Optional: upload sketch  pio run -t upload
- * Flash SPIFFS data: pio run -t uploadfs
- * Remove jumper, (reboot)
-*/
 
 #include "Arduino.h"
 
 #include "DHT.h"
 #include <Wire.h>
-#include <Adafruit_BMP085.h>
+#include <BH1750.h>
+
+// data/homie/config.json hochladen mit platformio run --target uploadfs
 
 /*
-  float humidityDHT; //[%RH]
+  float humidity; //[%RH]  DHT
-  float temperatureDHT; //[deg C]
+  float temperature; //[deg C]   DHT
-  float temperatureBMP; ///[deg C]
+  float light; //[Lux]  BH1750
-  float pressure; // [hPa]   BMP180
+  bool movement //true bei pir output hight, false wenn low   HC12?
-  float light; //[Lux]  LDR
-  bool movement //true bei pir output hight, false wenn low
 */
 
 
 
-Adafruit_BMP085 bmp180;
-
 //GPIO2 is blue led
-DHT dht(13,DHT22,11); //default:11
+#define DHTPIN D7     // Digital pin connected to the DHT sensor
+//DHT dht(13,DHT22,11); //default:11
+DHT dht(DHTPIN,DHT22,11); //default:11
 
-#define PIRPIN 12
+#define PIRPIN D6  //pir sensor needs 5v. output level is 3.3v
+
+BH1750 lightMeter(0x23);
 
 //timings
 unsigned long lastsensorreadtime=0;
 unsigned long sensorupdatedelay=60000; //delay for reading and transmitting
 unsigned long lastPIRtime=0;
-unsigned long PIRdelay=500;
+unsigned long PIRdelay=100; //polling delay
 bool motion=false;
 
-unsigned long lastLDRtime=0;
-unsigned long LDRdelay=5000;
-  int LDR_readcounter=0;
-  double LDRLightcommulative=0;
-
-
-struct Values {
-  uint8_t id;
-  float humidityDHT; //[%RH]
-  float temperatureDHT; //[deg C]
-  float temperatureBMP; ///[deg C]
-  float pressureBMP; // [hPa]
-  float lightLDR; //[Lux]
-  int movementPIR; //[seconds with movement]
-  long rssi; //wifi rssi
-};
-Values values;
-
-
-
-
 
 #include <Homie.h>
-#define FW_NAME "sensoresp1"
+#define FW_NAME "sensoresp3"
 #define FW_VERSION "1.0.0"
 
 
@@ -76,41 +47,25 @@ HomieNode sensorNode("sensors", "Sensors","sensors");
 char tempstring[16]; //for dtostrf
 
 
-
-// Light calibration data
-// out[] holds the values wanted in lux/10
-
-//measured 20160709
-#define LDRARRAYSIZE 18
-static const unsigned int out_ldr[] = {0, 30, 50,  60,  130, 170, 250, 420, 780, 1300,2600, 5000, 5350, 7700, 10900, 12000, 17000,20000};  // x10  (i.e. gets later divided by 10)
-static const unsigned int in_ldr[]  = {0, 12, 100, 150, 350, 400, 450, 650, 730,  780, 840, 930,  948 , 970,  993,   1005,  1019, 1023};  // 0 - 1023
-
-
 void loopHandler();
-double Light(int RawADC0);
-double getAverageLight();
-int get_lux(const unsigned int* _in, const unsigned int* _out, byte size);
 
 void setup() {
   Serial.begin(115200);
   Serial.println();
   Serial.println("Welcome");
 
-  pinMode(PIRPIN, INPUT); //pir movement sensor
+  pinMode(PIRPIN, INPUT);
-  Serial.println("initializing ldr pinmode");
-  pinMode(A0, INPUT); //ldr
-  
-  values.id=1;
-  Serial.println("initializing dht");
-  dht.begin(); // data pin 2
-  //Wire.begin(12,14); //i2c for bmp180
-  Serial.println("initializing bmp180");
-  //bmp180.init();
-  if (!bmp180.begin()){
-    Serial.println("#ERROR: BMP180 init fail\n\n");
-  }
 
-  
+  Serial.println("initializing dht");
+  dht.begin(); // dht pins: 1=power, 2=data, 3=NC, 4=GND. 10k from data to power needed 
+
+  Serial.println("initializing bh1750");
+  Wire.begin();  //initialize i2c. SDA=D2, SCL=D1
+  if (lightMeter.begin(BH1750::CONTINUOUS_HIGH_RES_MODE)) {
+    Serial.println(F("BH1750 Advanced begin"));
+  } else {
+    Serial.println(F("Error initialising BH1750"));
+  }
 
   Serial.println("connecting..");
   
@@ -119,10 +74,8 @@ void setup() {
   Homie.setLoopFunction(loopHandler);
 
 
-  sensorNode.advertise("temperatureDHT");
+  sensorNode.advertise("temperature");
   sensorNode.advertise("humidity");
-  sensorNode.advertise("temperatureBMP");
-  sensorNode.advertise("pressure");
   sensorNode.advertise("light");
   sensorNode.advertise("motion");
   
@@ -156,17 +109,6 @@ void loopHandler() {
      lastPIRtime=millis();
   }
 
-  if (millis() >= (lastLDRtime+LDRdelay)){
-     
-     LDR_readcounter++;
-     //LDRLightcommulative+=Light(analogRead(A0)); //read light value from adc
-     float ldr_read = get_lux(in_ldr, out_ldr, LDRARRAYSIZE)/10.0;
-     LDRLightcommulative+=ldr_read;
-     lastLDRtime=millis();
-
-     
-  }
-
   if (millis() >= (lastsensorreadtime+sensorupdatedelay))
   {
     Serial.println("Sending");
@@ -179,8 +121,8 @@ void loopHandler() {
 
     float temperatureDHT = dht.readTemperature();
     if (!(isnan(temperatureDHT) == 1)){ //success
-      Homie.getLogger() << "temperatureDHT " << ": " << temperatureDHT << endl;
+      Homie.getLogger() << "temperature " << ": " << temperatureDHT << endl;
-      sensorNode.setProperty("temperatureDHT").send(String(temperatureDHT));
+      sensorNode.setProperty("temperature").send(String(temperatureDHT));
     }
 
     float humidityDHT = dht.readHumidity();
@@ -191,18 +133,7 @@ void loopHandler() {
     
     
   
-    //values.temperatureBMP=bmp180.bmp085GetTemperature(bmp180.bmp085ReadUT());
+    float light = lightMeter.readLightLevel(); // [lux]
-    float temperatureBMP = bmp180.readTemperature();
-    Homie.getLogger() << "temperatureBMP " << ": " << temperatureBMP << endl;
-    sensorNode.setProperty("temperatureBMP").send(String(temperatureBMP));
-    //values.pressureBMP=bmp180.bmp085GetPressure(bmp180.bmp085ReadUP())/100.0; //Pa in hPa
-    //values.pressureBMP=bmp180.readPressure()/100.0;
-    float pressureBMP=bmp180.readPressure()/100.0;
-    Homie.getLogger() << "pressure " << ": " << pressureBMP << endl;
-    sensorNode.setProperty("pressure").send(String(pressureBMP));
-
-
-    float light=getAverageLight();
     Homie.getLogger() << "light " << ": " << light << endl;
     sensorNode.setProperty("light").send(String(light));
 
@@ -210,51 +141,4 @@ void loopHandler() {
 
     lastsensorreadtime=millis();
   }
-
-  
-
 }
-
-
-//////////////////////////////////////////////////////////////////////////////
-// Calculate lux based on rawADC reading from LDR returns value in lux/10
-//////////////////////////////////////////////////////////////////////////////
-//quelle: https://groups.google.com/forum/#!topic/souliss/1kMAltPB2ME[1-25]
-int get_lux(const unsigned int* _in, const unsigned int* _out, byte size)
-{
- 
-        // take care the value is within range
- // val = constrain(val, _in[0], _in[size-1]);
-
-
- unsigned int val = analogRead(A0);
- #ifdef DEBUG   //DEBUG++++++++++++++++
-        Serial.print("LDR RAW=: ");
-        Serial.println(val);
- #endif
- 
- 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]);
-}
-
-double getAverageLight(){ //average all readings and reset
-  double ldravg=LDRLightcommulative/LDR_readcounter;
-  LDR_readcounter=0; 
-  LDRLightcommulative=0;
-  return ldravg;
-}
-