2023-06-08

.gitignore

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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

.vscode/extensions.json

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+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

include/README

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+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

include/error.h

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+#include <Arduino.h>
+
+#include <EEPROM.h>
+
+#define AkkuLeer 0x80
+#define ADS1115noReady 0x01
+#define HTU21noReady 0x02
+#define BMP280noReady 0x04
+#define MCP9808noReady 0x08
+
+byte SystemStatus;
+
+
+
+
+void writeSystemStatus()
+{
+  EEPROM.begin(512);
+  EEPROM.put(0,SystemStatus);
+  EEPROM.commit();
+  EEPROM.end();
+}
+
+void readSystemStatus()
+{
+  EEPROM.begin(512);
+  EEPROM.get(0,SystemStatus);
+  EEPROM.commit();
+  EEPROM.end();
+  
+}

include/mess_htu21.h

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+#include <Arduino.h>
+#include <Wire.h>
+#include <Adafruit_Sensor.h>
+#include <Adafruit_I2CDevice.h>
+#include <Adafruit_HTU21DF.h>
+
+Adafruit_HTU21DF htu = Adafruit_HTU21DF();
+
+bool F_HTU_21D;
+float K_HTU= -0.00;
+
+struct {
+  char temperature[15] = {0};
+  char humity[15] = {0};
+} htuData;
+
+void init_HTU21(){
+    F_HTU_21D = false;
+    if (!htu.begin()) {
+        Serial.println("Couldn't find sensor HUT21D!");
+        SystemStatus = SystemStatus | HTU21noReady;
+    
+    }else{
+        F_HTU_21D = true;
+    Serial.println("HUT21D gefunden");    
+    }
+    
+}
+
+void read_HTU21D() {
+    float t = htu.readTemperature();
+    t = t + K_HTU;
+    dtostrf(t,10,4,htuData.temperature);
+    float h = htu.readHumidity();
+    dtostrf(h,7,1,htuData.humity);
+    Serial.print("Temperature (HTU21D):\t");
+    Serial.print(htuData.temperature);
+    Serial.println(" °C");
+    Serial.print("Luftfeuchtigkeit:\t");
+    Serial.print(htuData.humity);
+    Serial.println(" %");
+
+}
+
+void M2M_HTU21D(String deviceId = "4711") {
+    char topic[100];
+    sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/temperature_Htu_21" );
+    client.publish(topic, htuData.temperature, true);
+    sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/humity" );
+    client.publish(topic, htuData.humity, true);
+    /* Serial.printf("HTU21:\t\t %s °C\n", htuData.temperature);
+    Serial.printf("HTU21:\t\t %s %%\n", htuData.humity); */
+}

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env]
+platform = espressif8266
+board = d1
+framework = arduino
+board_build.filesystem = littlefs
+monitor_port = COM11
+monitor_speed = 74800
+monitor_filters = time
+upload_port = COM11
+lib_deps =
+    knolleary/PubSubClient @ 2.8
+    adafruit/Adafruit BusIO @ 1.14.1
+    adafruit/Adafruit HTU21DF Library @ 1.0.5
+    adafruit/Adafruit BMP280 Library @ 2.6.6
+    ; wollewald/ADS1115_WE @ 1.4.3
+    ; adafruit/Adafruit MCP9808 Library @ 2.0.0  
+
+    
+
+build_flags =
+    -DMaxErrCount=20
+    
+  
+
+[env:debug]     ; Entwicklungssystem
+build_flags = ${env.build_flags}
+    -DDEBUG=0
+    -DNAME=\"MESSUNITTEMP\"
+    -DSTASSID=\"St.-Peters-Gasse\"
+    -DSTAPSK=\"1952994784599317\"
+    -DGATEWAY=\"192.168.127.1\"
+    -DDNS=\"192.168.127.1\"
+    -DKMYIP=\"192.168.127.52\"
+    -Dmqtt_server=\"hjkmqtt.dedyn.io\"
+    -Dmqtt_port=61883
+    -DTERROR=5
+    -DTLOWBATT=60
+    -DTINTERVAL=1
+
+[env:marcel]   ; Produktivsystem: 
+build_flags = ${env.build_flags}
+    -DDEBUG=0
+    -DEMAIL=\"koerner.c.m@gmail.com\"
+    -DNAME=\"MESSUNITTEMP\"
+    -DSTASSID=\"EasyBox-838169\"
+    -DSTAPSK=\"RcZmua6Xv4R4V5Kf\"
+    -DGATEWAY=\"192.168.2.1\"
+    -DDNS=\"192.168.2.1\"
+    -DKMYIP=\"192.168.2.81\"
+    -Dmqtt_server=\"hjkmqtt.dedyn.io\"
+    -Dmqtt_port=8883
+    -DTERROR=20
+    -DTLOWBATT=60
+    -DTINTERVAL=10
+
+[env:boris]   ; Produktivsystem: 
+build_flags = ${env.build_flags}
+    -DDEBUG=0
+    -DEMAIL=\"koerner.c.m@gmail.com\"
+    -DNAME=\"MESSUNITTEMP\"
+    -DSTASSID=\"EasyBox-838169\"
+    -DSTAPSK=\"RcZmua6Xv4R4V5Kf\"
+    -DGATEWAY=\"192.168.2.1\"
+    -DDNS=\"192.168.2.1\"
+    -DKMYIP=\"192.168.2.81\"
+    -Dmqtt_server=\"hjkmqtt.dedyn.io\"
+    -Dmqtt_port=8883
+    -DTERROR=20
+    -DTLOWBATT=60
+    -DTINTERVAL=1

src/main.cpp

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+#include <Arduino.h>
+#include <FS.h>                   //this needs to be first, or it all crashes and burns...
+#include <string>
+#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino
+#include <PubSubClient.h>
+#include <Wire.h> 
+#include <SPI.h> 
+#include <Ticker.h>
+#include <error.h>
+
+
+
+
+#define BUILTIN_LED D2
+
+void reconnect();
+void setup_wifi();
+
+void callback(char* topic1, byte* payload, unsigned int length);
+void pulse_pin(uint8_t pin);
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+#include <mess_htu21.h>
+
+const char* ssid = STASSID;
+const char* password = STAPSK;
+String hostname = NAME;
+const char *MyIP = KMYIP;
+IPAddress ip;
+IPAddress gateway;
+IPAddress subnet(255, 255, 255, 0);
+IPAddress dns; 
+IPAddress secondaryDNS(8, 8, 8, 8);
+
+
+//const char* mqtt_fprint = "a3:44:1d:aa:6e:e5:c7:55:02:20:98:ea:9b:df:1a:42:a2:f3:e3:0d";
+/* const char* mqtt_user =   "mqtt";
+const char* mqtt_pass =   "fische"; */
+
+const unsigned long interval  = TINTERVAL * 60000000LU; // Minuten * Mikrosekunden für Sleep Mode
+const unsigned long intervalLowBatt = TLOWBATT * 60000000LU; // Minuten * Mikrosekunden für Sleep Mode, Akku entladen
+const unsigned long stoerung  = TERROR * 60000000LU; // Minuten * Mikrosekunden für Sleep Mode
+
+unsigned long previousMillis = 0;
+
+long deviceId;
+char sID[16];
+char clientName[30];
+unsigned long startTime;
+unsigned long endTime;
+char topic[100];
+char topic_1[50];
+char topicWert[20];
+char msg[20];
+long int Feldstaerke;
+
+
+
+void setup() {
+  startTime = millis();
+  Serial.begin(74880);
+  while ( !Serial ) delay(100);   // wait for native usb
+  WiFi.mode( WIFI_OFF );
+  WiFi.forceSleepBegin();
+  Serial.println();
+
+  Serial.println();
+  Serial.println();
+  Serial.println();
+  readSystemStatus();
+  Serial.printf("Systemstatus : 0x%02x \n", SystemStatus);
+  SystemStatus = 0x00;
+  delay(500);
+  init_HTU21();
+  if (F_HTU_21D == true){
+    read_HTU21D();
+  }
+  setup_wifi();  // ca. 4,5 s
+  deviceId = ESP.getChipId();
+  sprintf(sID, "%010ld", deviceId);
+  Serial.print("ID: \t\t"); Serial.println(deviceId);
+  
+  // ca. 5 s
+  client.setServer(mqtt_server, mqtt_port);
+  client.setCallback(callback);
+  Serial.printf("Systemstatus : 0x%02x \n", SystemStatus);
+  //----------
+  
+}
+
+void loop() {
+  unsigned long Pause = 0;
+  if (!client.connected()) {
+    reconnect();
+  }
+  int currentMillis = millis();
+  if (currentMillis - previousMillis >= 10000) {
+    previousMillis = currentMillis;
+    if (F_HTU_21D) M2M_HTU21D(hostname.c_str());
+    sprintf(msg,"%ld", Feldstaerke);
+    sprintf(topic, "%s%s%s", "hjk/devices/", hostname.c_str(), "/telemetry/RSSI" );
+    client.publish(topic, msg, true);
+    sprintf(msg,"0x%02x", SystemStatus);
+    sprintf(topic, "%s%s%s", "hjk/devices/", hostname.c_str(), "/telemetry/SystemStatus" );
+    client.publish(topic, msg, true);
+    client.loop();
+    delay(500);
+    digitalWrite(BUILTIN_LED, HIGH);
+    endTime = millis();
+    Pause = interval -((endTime - startTime) * 1000);      // Pause ca. 15 Minuten
+    if(Pause <=0){
+      Pause = 1;
+    }
+    Serial.print("Ich gehe für ca. "); Serial.print((Pause/1000/1000/60)+1); Serial.println( " Minuten schlafen.");
+    #if (DEBUG == 1)
+    ESP.deepSleep(10e6);
+    #else
+    writeSystemStatus();
+    ESP.deepSleep(Pause);
+    #endif
+    
+    delay(100); 
+  }
+}
+
+void setup_wifi() {
+
+  long ErrCount = 0;
+
+  delay(10);
+  // We start by connecting to a WiFi network
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.print(ssid);
+  Serial.print(" ");
+
+  WiFi.forceSleepWake();
+  delay( 1 );
+  WiFi.persistent( false );
+  WiFi.mode( WIFI_STA );
+  WiFi.setHostname(hostname.c_str()); //define hostname
+  WiFi.hostname(hostname.c_str());
+  WiFi.mode( WIFI_STA );
+  if (!ip.fromString(MyIP)) { // try to parse into the IPAddress
+    Serial.println("UnParsable IP");
+    }
+  if (!dns.fromString(DNS)) { // try to parse into the IPAddress
+    Serial.println("UnParsable DNS");
+    }
+  if (!gateway.fromString(GATEWAY)) { // try to parse into the IPAddress
+    Serial.println("UnParsable GATEWAY");
+    }
+  //WiFi.config( ip, dns, gateway, subnet );
+  if (!WiFi.config(ip, gateway, subnet, dns, secondaryDNS))
+  {
+    Serial.println("STA Failed to configure");
+  }
+
+  WiFi.begin(ssid, password);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+    ErrCount ++;
+    if (ErrCount >= MaxErrCount){
+      endTime = millis();
+      unsigned long Pause = stoerung -((endTime - startTime) * 1000); // Pause
+      Serial.println();
+      Serial.println("STÖRUNG WiFi.");
+      Serial.print("Ich gehe für ca. "); Serial.print(Pause/1000/1000/60); Serial.println( " Minuten schlafen.");
+      ESP.deepSleep(Pause, WAKE_NO_RFCAL); // Pause  
+      delay(100);
+      }
+    }
+  Serial.println(" WiFi connected");
+  Serial.print("IP address: \t");
+  Feldstaerke = WiFi.RSSI();
+  Serial.print(WiFi.localIP()); Serial.print("\tRESSI: "); Serial.println(Feldstaerke);
+  /* delay(2000);
+  ESP.deepSleep(2e6, WAKE_RF_DEFAULT);
+  delay(100); */
+} 
+
+void callback(char* topic1, byte* payload, unsigned int length)
+{
+  Serial.print("Message arrived [");
+  Serial.print(topic1);
+  Serial.print("] ");
+  for (unsigned int i = 0; i < length; i++) {
+    msg[i] = (char)payload[i];
+  }
+  msg[length] = '\0';
+  Serial.println(msg);
+  /* if(strcmp(topic1, topic_1)== 0){
+    Serial.print(msg);
+    Serial.println();
+    korectur = atof(msg);
+    Serial.print("Korektur:\t");Serial.println(korectur, 8);
+  } */
+}
+void reconnect() {
+  // Loop until we're reconnected
+  sprintf(clientName, "%s%s", "ESP8266Client", sID);
+  while (!client.connected()) {
+    Serial.print("Attempting MQTT connection...");
+    // Attempt to connect
+    if (client.connect(clientName)) {
+      Serial.println("connected");
+      // Once connected, publish an announcement...
+      client.publish("outTopic", "hello world");
+      // ... and resubscribe
+      client.subscribe("inTopic");
+    } else {
+      Serial.print("failed, rc=");
+      Serial.print(client.state());
+      Serial.println(" try again in 5 seconds");
+      // Wait 5 seconds before retrying
+      delay(5000);
+      ESP.restart();
+    }
+  }
+}
+
+
+

test/README

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+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html