Initial

.gitignore

@@ -0,0 +1,6 @@
+.pio
+.pioenvs
+.piolibdeps
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json

.travis.yml

@@ -0,0 +1,67 @@
+# Continuous Integration (CI) is the practice, in software
+# engineering, of merging all developer working copies with a shared mainline
+# several times a day < https://docs.platformio.org/page/ci/index.html >
+#
+# Documentation:
+#
+# * Travis CI Embedded Builds with PlatformIO
+#   < https://docs.travis-ci.com/user/integration/platformio/ >
+#
+# * PlatformIO integration with Travis CI
+#   < https://docs.platformio.org/page/ci/travis.html >
+#
+# * User Guide for `platformio ci` command
+#   < https://docs.platformio.org/page/userguide/cmd_ci.html >
+#
+#
+# Please choose one of the following templates (proposed below) and uncomment
+# it (remove "# " before each line) or use own configuration according to the
+# Travis CI documentation (see above).
+#
+
+
+#
+# Template #1: General project. Test it using existing `platformio.ini`.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio run
+
+
+#
+# Template #2: The project is intended to be used as a library with examples.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# env:
+#     - PLATFORMIO_CI_SRC=path/to/test/file.c
+#     - PLATFORMIO_CI_SRC=examples/file.ino
+#     - PLATFORMIO_CI_SRC=path/to/test/directory
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio ci --lib="." --board=ID_1 --board=ID_2 --board=ID_N

.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+	// See http://go.microsoft.com/fwlink/?LinkId=827846
+	// for the documentation about the extensions.json format
+	"recommendations": [
+		"platformio.platformio-ide"
+	]
+}

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "terminal.integrated.env.windows": {
+        "PATH": "C:\\Users\\dagolap\\.platformio\\penv\\Scripts;C:\\Users\\dagolap\\.platformio\\penv;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common;C:\\Program Files\\Git\\cmd;C:\\Program Files (x86)\\PuTTY\\;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\ProgramData\\chocolatey\\bin;C:\\Users\\dagolap\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files (x86)\\Atmel\\Flip 3.4.7\\bin;C:\\adb;C:\\Program Files\\NVIDIA Corporation\\NVIDIA NvDLISR;C:\\ProgramData\\chocolatey\\bin;;C:\\Users\\dagolap\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files (x86)\\Atmel\\Flip 3.4.7\\bin;C:\\Program Files (x86)\\Nmap;C:\\Users\\dagolap\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common;C:\\Program Files\\Git\\cmd;C:\\Program Files (x86)\\PuTTY\\;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\ProgramData\\chocolatey\\bin;C:\\Users\\dagolap\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files (x86)\\Atmel\\Flip 3.4.7\\bin;C:\\adb;C:\\Program Files\\NVIDIA Corporation\\NVIDIA NvDLISR;C:\\ProgramData\\chocolatey\\bin;;C:\\Users\\dagolap\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files (x86)\\Atmel\\Flip 3.4.7\\bin;C:\\Program Files (x86)\\Nmap;C:\\Users\\dagolap\\AppData\\Local\\Programs\\Microsoft VS Code\\bin",
+        "PLATFORMIO_CALLER": "vscode"
+    }
+}

include/README

@@ -0,0 +1,39 @@
+
+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

lib/README

@@ -0,0 +1,46 @@
+
+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

@@ -0,0 +1,14 @@
+; 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:d1_mini]
+platform = espressif8266
+board = d1_mini
+framework = arduino

src/config.h

@@ -0,0 +1,28 @@
+//
+// Config
+//
+// Device unique stuff
+#define NODE_NAME "test"
+#define NODE_SLEEP_SECONDS 5 * 60
+
+// Features
+// #define HAS_SHT30 // Temperatur & Humidity
+// #define HAS_BMP180 // Barometer
+#define HAS_811 // CO2
+
+// Wifi
+#define WIFI_SSID ""
+#define WIFI_PASS ""
+#define WIFI_HOST "lolin-env-sensor-" NODE_NAME
+
+// MQTT
+#define MQTT_SERVER "192.168.1.210"
+#define MQTT_USER ""
+#define MQTT_PASS ""
+#define MQTT_PORT 1883
+#define TOPIC_TEMPERATURE "home/" NODE_NAME "/temperature"
+#define TOPIC_HUMIDITY "home/" NODE_NAME "/humidity"
+
+// Module setup
+#define SLEEP_SECONDS NODE_SLEEP_SECONDS
+#define SENSOR_DHT_ADDRESS 0x45

src/i2cscanner.cpp

@@ -0,0 +1,84 @@
+    // // --------------------------------------
+    // // i2c_scanner
+    // //
+    // // Version 1
+    // //    This program (or code that looks like it)
+    // //    can be found in many places.
+    // //    For example on the Arduino.cc forum.
+    // //    The original author is not know.
+    // // Version 2, Juni 2012, Using Arduino 1.0.1
+    // //     Adapted to be as simple as possible by Arduino.cc user Krodal
+    // // Version 3, Feb 26  2013
+    // //    V3 by louarnold
+    // // Version 4, March 3, 2013, Using Arduino 1.0.3
+    // //    by Arduino.cc user Krodal.
+    // //    Changes by louarnold removed.
+    // //    Scanning addresses changed from 0...127 to 1...119,
+    // //    according to the i2c scanner by Nick Gammon
+    // //    http://www.gammon.com.au/forum/?id=10896
+    // // Version 5, March 28, 2013
+    // //    As version 4, but address scans now to 127.
+    // //    A sensor seems to use address 120.
+    // // Version 6, November 27, 2015.
+    // //    Added waiting for the Leonardo serial communication.
+    // //
+    // //
+    // // This sketch tests the standard 7-bit addresses
+    // // Devices with higher bit address might not be seen properly.
+    // //
+     
+    // #include <ESP8266WiFi.h>
+    // #include <Wire.h>
+     
+     
+    // void setup()
+    // {
+    //   Wire.begin();
+     
+    //   Serial.begin(9600);
+    //   while (!Serial);             // Leonardo: wait for serial monitor
+    //   Serial.println("\nI2C Scanner");
+    // }
+     
+     
+    // void loop()
+    // {
+    //   byte error, address;
+    //   int nDevices;
+     
+    //   Serial.println("Scanning...");
+     
+    //   nDevices = 0;
+    //   for(address = 1; address < 127; address++ )
+    //   {
+    //     // The i2c_scanner uses the return value of
+    //     // the Write.endTransmisstion to see if
+    //     // a device did acknowledge to the address.
+    //     Wire.beginTransmission(address);
+    //     error = Wire.endTransmission();
+     
+    //     if (error == 0)
+    //     {
+    //       Serial.print("I2C device found at address 0x");
+    //       if (address<16)
+    //         Serial.print("0");
+    //       Serial.print(address,HEX);
+    //       Serial.println("  !");
+     
+    //       nDevices++;
+    //     }
+    //     else if (error==4)
+    //     {
+    //       Serial.print("Unknown error at address 0x");
+    //       if (address<16)
+    //         Serial.print("0");
+    //       Serial.println(address,HEX);
+    //     }    
+    //   }
+    //   if (nDevices == 0)
+    //     Serial.println("No I2C devices found\n");
+    //   else
+    //     Serial.println("done\n");
+     
+    //   delay(5000);           // wait 5 seconds for next scan
+    // }

src/main.cpp

@@ -0,0 +1,161 @@
+#include "config.h"
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+
+#ifdef HAS_BMP180
+#endif
+
+#ifdef HAS_811
+#include <Adafruit_CCS811.h>
+#endif
+
+#ifdef HAS_SHT30
+#include <WEMOS_SHT3X.h>
+#endif
+
+// MQTT-client for HomeAssistant integration
+void mqtt_handler(char *topic, uint8_t *payload, unsigned int length)
+{
+  Serial.printf("%b", payload);
+}
+WiFiClient wifiClient;
+PubSubClient mqttClient(MQTT_SERVER, MQTT_PORT, mqtt_handler, wifiClient);
+
+#ifdef HAS_SHT30
+void reportSht30Data()
+{
+  SHT3X sht30(SENSOR_DHT_ADDRESS);
+
+  byte couldRead = sht30.get();
+  if (couldRead == 0)
+  {
+    float temp = sht30.cTemp;
+    float hum = sht30.humidity;
+    char cTemp[3];
+    char cHum[3];
+    sprintf(cTemp, "%.0f", temp);
+    sprintf(cHum, "%.0f", hum);
+
+    Serial.printf("Temp: %.2f\n", temp);
+    Serial.printf("Humidity: %.2f\n", hum);
+
+    mqttClient.publish(TOPIC_TEMPERATURE, cTemp, true);
+    mqttClient.publish(TOPIC_HUMIDITY, cHum, true);
+  }
+  else
+  {
+    Serial.printf("Ingen måling... returkode: %d\n", couldRead);
+    mqttClient.publish(TOPIC_TEMPERATURE, "0", true);
+    mqttClient.publish(TOPIC_HUMIDITY, "0", true);
+  }
+}
+#endif
+
+#ifdef HAS_811
+Adafruit_CCS811 ccs;
+
+void setup811()
+{
+  if (!ccs.begin())
+  {
+    Serial.println("Failed to start sensor! Please check your wiring.");
+    while (1)
+      ;
+  }
+
+  Serial.println("Connecting to 811-sensor");
+  while (!ccs.available())
+  {
+    delay(1000);
+    Serial.print(".");
+  }
+
+  float temp = ccs.calculateTemperature();
+  ccs.setTempOffset(temp - 25.0);
+}
+
+void report811Data()
+{
+  if (ccs.available())
+  {
+
+    float temp = ccs.calculateTemperature();
+    if (!ccs.readData())
+    {
+      Serial.print("CO2: ");
+      Serial.print(ccs.geteCO2());
+      Serial.print("ppm, TVOC: ");
+      Serial.print(ccs.getTVOC());
+      Serial.print("ppb   Temp:");
+      Serial.println(temp);
+    }
+  }
+}
+#endif
+
+void setup()
+{
+  //
+  // Setup
+  //
+  Serial.begin(9600);
+
+  Serial.println("");
+  Serial.printf("Woke up. I am %s - Hello World!\n", WIFI_HOST);
+
+  // Connect D0 to RST to wake up
+  pinMode(D0, WAKEUP_PULLUP);
+
+  // Connect to Wifi
+  Serial.printf("Connecting to %s\n", WIFI_SSID);
+  WiFi.hostname(WIFI_HOST);
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+
+  while (WiFi.status() != WL_CONNECTED)
+  {
+    delay(1000);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+
+  Serial.printf("Connecting to MQTT %s\n", MQTT_SERVER);
+  mqttClient.connect(MQTT_SERVER, MQTT_USER, MQTT_PASS);
+  while (!mqttClient.connected())
+  {
+    delay(1000);
+    Serial.print(".");
+  }
+  Serial.println("");
+
+//
+// Read data from sensor and send to MQTT (was basically loop())
+//
+#ifdef HAS_SHT30
+  reportSht30Data();
+#endif
+
+#ifdef HAS_811
+  //   report811Data();
+  setup811();
+#endif
+
+  mqttClient.disconnect();
+  wifiClient.stop();
+
+  Serial.println("Waiting 10 seconds to allow a flash :)");
+  delay(2000);
+
+  Serial.printf("Going to sleep for %d seconds now... Bye bye!\n", SLEEP_SECONDS);
+  // ESP.deepSleep(SLEEP_SECONDS * 1000000);
+}
+
+void loop()
+{
+
+#ifdef HAS_811
+  report811Data();
+#endif
+}

test/README

@@ -0,0 +1,11 @@
+
+This directory is intended for PIO Unit Testing 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 PIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html