From a444f87744033ff560a5456d4a4eefd572d0fc52 Mon Sep 17 00:00:00 2001
From: Joachim Hummel <joachim.hummel@dataport.de>
Date: Thu, 2 Mar 2023 21:50:08 +0000
Subject: [PATCH] Added new sketch and edit Readme

---
 CO2-Ampel-MQTT-BME680-SCD30-7Segement.ino | 298 ++++++++++++++++++++++
 README.md                                 |   6 +-
 2 files changed, 301 insertions(+), 3 deletions(-)
 create mode 100644 CO2-Ampel-MQTT-BME680-SCD30-7Segement.ino

diff --git a/CO2-Ampel-MQTT-BME680-SCD30-7Segement.ino b/CO2-Ampel-MQTT-BME680-SCD30-7Segement.ino
new file mode 100644
index 0000000..4ec0496
--- /dev/null
+++ b/CO2-Ampel-MQTT-BME680-SCD30-7Segement.ino
@@ -0,0 +1,298 @@
+/* Disclaimer IoT-Werkstatt CC 4.0 BY NC SA 
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For Ardublock see the
+ GNU General Public License for more details. */
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+#include <SparkFun_SCD30_Arduino_Library.h>
+#include <Wire.h>
+#include <bsec.h>
+#include <Ticker.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_LEDBackpack.h>
+#include <Adafruit_NeoPixel.h>
+
+String matrixausgabe_text  = " "; // Ausgabetext als globale Variable
+
+volatile int matrixausgabe_index = 0;// aktuelle Position in Matrix
+
+IPAddress myOwnIP; // ownIP for mDNS 
+
+//-------------- definition mqtt-object ueber WiFi
+WiFiClient   espClient; 
+PubSubClient mqttclient(espClient);
+
+//--------- list of mqtt callback functions 
+#define MAX_MQTT_SUB 10 // maximal 10 subscriptions erlaubt
+typedef void (*mqtthandle) (byte*,unsigned int);
+typedef struct {       // Typdeklaration Callback
+  String topic;        // mqtt-topic
+  mqtthandle fun;      // callback function 
+}
+subscribe_type; 
+subscribe_type mqtt_sub[MAX_MQTT_SUB];
+int mqtt_sub_count=0;
+
+String MQTT_Rx_Payload = "" ;
+//--------- mqtt callback function 
+void mqttcallback(char* to, byte* pay, unsigned int len) {
+  String topic   = String(to);
+  String payload = String((char*)pay);
+  MQTT_Rx_Payload=payload.substring(0,len);
+  Serial.println("\ncallback topic:" + topic + ", payload:" + MQTT_Rx_Payload);
+  for (int i=0;i<mqtt_sub_count;i++) { // durchsuche alle subscriptions, bis topic passt 
+    if (topic==mqtt_sub[i].topic) 
+      mqtt_sub[i].fun(pay,len);         // Aufruf der richtigen callback-Funktion
+  }
+}
+
+//------------ reconnect mqtt-client
+void mqttreconnect() { // Loop until we're reconnected 
+  if (!mqttclient.connected()) { 
+    while (!mqttclient.connected()) { 
+      Serial.print("Attempting MQTT connection...");
+      if (mqttclient.connect("IoTHackathon" , "xxxxx", "xxxxxx" )) {
+        Serial.println("connected");
+        for (int i=0;i<mqtt_sub_count;i++) { // subscribe topic
+          mqttclient.subscribe(mqtt_sub[i].topic.c_str());
+          Serial.println("\nsubscribe");
+          Serial.print(mqtt_sub[i].topic);
+        }
+      } 
+      else { 
+        Serial.print("failed, rc=");
+        Serial.print(mqttclient.state());
+        Serial.println(" try again in 5 seconds");
+        delay(5000);
+      }
+    }
+  } 
+  else { 
+    mqttclient.loop(); 
+  }
+}
+
+int CO2 = 0 ;
+//Reading CO2, humidity and temperature from the SCD30 By: Nathan Seidle SparkFun Electronics 
+
+//https://github.com/sparkfun/SparkFun_SCD30_Arduino_Library
+
+SCD30 airSensorSCD30; // Objekt SDC30 Umweltsensor
+int TEMP = 0 ;
+/* 
+ Bosch BSEC Lib, https://github.com/BoschSensortec/BSEC-Arduino-library
+ The BSEC software is only available for download or use after accepting the software license agreement.
+ By using this library, you have agreed to the terms of the license agreement: 
+ https://ae-bst.resource.bosch.com/media/_tech/media/bsec/2017-07-17_ClickThrough_License_Terms_Environmentalib_SW_CLEAN.pdf */
+Bsec iaqSensor;     // Create an object of the class Bsec 
+Ticker Bsec_Ticker; // schedule cyclic update via Ticker 
+const uint8_t bsec_config_iaq[] = {
+#include "config/generic_33v_3s_28d_2d_iaq_50_200/bsec_iaq.txt"
+};
+
+// ------------------------   Helper functions Bosch Bsec - Lib 
+void checkIaqSensorStatus(void)
+{ 
+  String output; 
+  if (iaqSensor.status != BSEC_OK) {
+    if (iaqSensor.status < BSEC_OK) {
+      output = "BSEC error code : " + String(iaqSensor.status);
+      for (;;) {
+        Serial.println(output);
+        delay(500);
+      } // Halt in case of failure 
+    } 
+    else {
+      output = "BSEC warning code : " + String(iaqSensor.status);
+      Serial.println(output);
+    }
+  }
+
+  if (iaqSensor.bme680Status != BME680_OK) {
+    if (iaqSensor.bme680Status < BME680_OK) {
+      output = "BME680 error code : " + String(iaqSensor.bme680Status);
+      for (;;){
+        Serial.println(output);
+        delay(500);
+      }  // Halt in case of failure 
+    } 
+    else {
+      output = "BME680 warning code : " + String(iaqSensor.bme680Status);
+      Serial.println(output);
+    }
+  }
+}
+
+// Housekeeping: scheduled update using ticker-lib
+void iaqSensor_Housekeeping(){  // get new data 
+  iaqSensor.run();
+}
+
+int LUFTDRUCK = 0 ;
+int FEUCHTE = 0 ;
+// Adafruit Feather 7 Segment https://learn.adafruit.com/adafruit-7-segment-led-featherwings/overview
+Adafruit_7segment matrix7Seg = Adafruit_7segment(); // 7Segment Feather
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(2,13,NEO_GRBW + NEO_KHZ800);
+
+void setup(){ // Einmalige Initialisierung
+  Serial.begin(115200);
+  //----------------------------------MQTT-Client 
+  mqttclient.setServer("mqtt.unixweb.eu", 1883);
+  mqttclient.setCallback(mqttcallback);
+
+  Wire.begin(); // ---- Initialisiere den I2C-Bus 
+
+  if (Wire.status() != I2C_OK) Serial.println("Something wrong with I2C");
+
+  if (airSensorSCD30.begin() == false) {
+    Serial.println("The SCD30 did not respond. Please check wiring."); 
+    while(1) {
+      yield(); 
+      delay(1);
+    } 
+  }
+
+  airSensorSCD30.setAutoSelfCalibration(false); // Sensirion no auto calibration
+
+  airSensorSCD30.setMeasurementInterval(2);     // CO2-Messung alle 2 s
+
+  iaqSensor.begin(BME680_I2C_ADDR_PRIMARY, Wire);
+  String output = "\nBSEC library version " + String(iaqSensor.version.major) + "." + String(iaqSensor.version.minor) + "." + String(iaqSensor.version.major_bugfix) + "." + String(iaqSensor.version.minor_bugfix);
+  Serial.println(output);
+  iaqSensor.setConfig(bsec_config_iaq);
+  checkIaqSensorStatus();
+
+  bsec_virtual_sensor_t sensorList[10] = {
+    BSEC_OUTPUT_RAW_TEMPERATURE,
+    BSEC_OUTPUT_RAW_PRESSURE,
+    BSEC_OUTPUT_RAW_HUMIDITY,
+    BSEC_OUTPUT_RAW_GAS,
+    BSEC_OUTPUT_IAQ,
+    BSEC_OUTPUT_STATIC_IAQ,
+    BSEC_OUTPUT_CO2_EQUIVALENT,
+    BSEC_OUTPUT_BREATH_VOC_EQUIVALENT,
+    BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
+    BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
+  };
+
+  iaqSensor.updateSubscription(sensorList, 10, BSEC_SAMPLE_RATE_LP);
+  checkIaqSensorStatus();  
+  iaqSensor_Housekeeping();
+  Bsec_Ticker.attach_ms(3000, iaqSensor_Housekeeping);
+
+  Serial.println();
+  matrix7Seg.begin(0x70); // ---- Initialisiere 7Segment Matrix
+  matrix7Seg.clear();     // 
+  matrix7Seg.writeDisplay();
+
+  pixels.begin();//-------------- Initialisierung Neopixel
+  delay(1);
+  pixels.show();
+  pixels.setPixelColor(0,0,0,0,0); // alle aus
+  pixels.setPixelColor(1,0,0,0,0);
+  pixels.show();                 // und anzeigen
+
+  //------------ WLAN initialisieren 
+  WiFi.disconnect();
+  WiFi.persistent(false);
+  WiFi.mode(WIFI_STA);
+  delay(100);
+  Serial.print ("\nWLAN connect to:");
+  Serial.print("WLAN-24");
+  WiFi.begin("WLAN-24","111111111");
+  while (WiFi.status() != WL_CONNECTED) { // Warte bis Verbindung steht 
+    delay(500); 
+    Serial.print(".");
+  };
+  Serial.println ("\nconnected, meine IP:"+ WiFi.localIP().toString());
+  matrixausgabe_text = " Meine IP:" + WiFi.localIP().toString();
+  myOwnIP = WiFi.localIP();
+  matrixausgabe_index=0;
+
+
+  Wire.setClock(100000L);            // 100 kHz SCD30 
+  Wire.setClockStretchLimit(200000L);// CO2-SCD30
+}
+
+void loop() { // Kontinuierliche Wiederholung 
+  CO2 = airSensorSCD30.getCO2() ;
+  TEMP = iaqSensor.temperature ;
+  LUFTDRUCK = (iaqSensor.pressure/100.) ;
+  FEUCHTE = iaqSensor.humidity ;
+  mqttreconnect();
+  {
+    String pay=String(String(CO2));
+    mqttclient.publish("Octopus/CO2",pay.c_str());
+    Serial.print("\nmqtt publish: "); 
+    Serial.print(pay);
+  };
+  mqttreconnect();
+  {
+    String pay=String(String(TEMP));
+    mqttclient.publish("Octopus/Temp",pay.c_str());
+    Serial.print("\nmqtt publish: "); 
+    Serial.print(pay);
+  };
+  mqttreconnect();
+  {
+    String pay=String(String(LUFTDRUCK));
+    mqttclient.publish("Octopus/Luftdruck",pay.c_str());
+    Serial.print("\nmqtt publish: "); 
+    Serial.print(pay);
+  };
+  mqttreconnect();
+  {
+    String pay=String(String(FEUCHTE));
+    mqttclient.publish("Octopus/Feuchte",pay.c_str());
+    Serial.print("\nmqtt publish: "); 
+    Serial.print(pay);
+  };
+  Serial.print("CO2:"+String(String(CO2)));
+  Serial.println();
+  matrix7Seg.print(TEMP);
+  matrix7Seg.writeDigitNum(0,1,true);
+  matrix7Seg.writeDisplay();
+  delay( 2000 );
+  matrix7Seg.print(LUFTDRUCK);
+  matrix7Seg.writeDigitNum(0,2,true);
+  matrix7Seg.writeDisplay();
+  delay( 2000 );
+  matrix7Seg.print(FEUCHTE);
+  matrix7Seg.writeDigitNum(0,3,true);
+  matrix7Seg.writeDisplay();
+  delay( 2000 );
+  matrix7Seg.print(CO2);
+  matrix7Seg.writeDisplay();
+  if (( ( CO2 ) < ( 1000 ) ))
+  {
+    Serial.print("green");
+    Serial.println();
+    pixels.setPixelColor(0,0,30,0,0);
+    pixels.show();
+    pixels.setPixelColor(1,0,30,0,0);
+    pixels.show();
+  }
+  else
+  {
+    if (( ( CO2 ) < ( 1400 ) ))
+    {
+      pixels.setPixelColor(0,30,30,0,0);
+      pixels.show();
+      pixels.setPixelColor(1,30,30,0,0);
+      pixels.show();
+      Serial.print("yellow");
+      Serial.println();
+    }
+    else
+    {
+      pixels.setPixelColor(0,40,0,0,0);
+      pixels.show();
+      pixels.setPixelColor(1,40,0,0,0);
+      pixels.show();
+      Serial.print("red");
+      Serial.println();
+    }
+  }
+  delay( 6000 );
+} //end loop
diff --git a/README.md b/README.md
index a414484..0f88351 100644
--- a/README.md
+++ b/README.md
@@ -23,10 +23,10 @@
 * https://www.umwelt-campus.de/forschung/projekte/iot-werkstatt/ideen-zur-corona-krise
 * WICHTIG Kalibrierung des Sensor https://www.youtube.com/watch?v=od_XsBE6hU4
 
-![Screenshot](https://git.unixweb.net/jhummel/CO2-Ampel-Octopus/raw/branch/master/images/Die-CO2-Ampel.jpg)
+![Screenshot](https://git.unixweb.net/unixweb/CO2-Ampel-Octopus/raw/branch/master/images/Die-CO2-Ampel.jpg)
 
-![Screenshot](https://git.unixweb.net/jhummel/CO2-Ampel-Octopus/raw/branch/master/images/SCD30-CO2-Ampel.jpg)
+![Screenshot](https://git.unixweb.net/unixweb/CO2-Ampel-Octopus/raw/branch/master/images/SCD30-CO2-Ampel.jpg)
 
-![Screenshot](https://git.unixweb.net/jhummel/CO2-Ampel-Octopus/raw/branch/master/images/CO2-Ampel-mit-NodeRED-Dashboard.png)
+![Screenshot](https://git.unixweb.net/unixweb/CO2-Ampel-Octopus/raw/branch/master/images/CO2-Ampel-mit-NodeRED-Dashboard.png)