diff --git a/include/README b/include/README new file mode 100755 index 0000000..45496b1 --- /dev/null +++ b/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 diff --git a/lib/README b/lib/README new file mode 100755 index 0000000..8c9c29c --- /dev/null +++ b/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 +#include + +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 diff --git a/platformio.ini b/platformio.ini new file mode 100755 index 0000000..e29da06 --- /dev/null +++ b/platformio.ini @@ -0,0 +1,18 @@ +; 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:nodemcuv2] +platform = espressif8266 +board = nodemcuv2 +framework = arduino +lib_deps = + arduino-libraries/ArduinoMqttClient@^0.1.5 + arduino-libraries/NTPClient@^3.2.1 + bblanchon/ArduinoJson@^6.19.4 diff --git a/src/main.cpp b/src/main.cpp new file mode 100755 index 0000000..2f4bab8 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,154 @@ +#include +#include +#include +#include +#include +#include +#include +#include "arduino_secrets.h" + +#define LDR_PIN A0 +int LEDS_PIN[] = {D1, D2, D3, D4}; + +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) + +WiFiClient wifiClient; +MqttClient mqttClient(wifiClient); + +WiFiUDP ntpUDP; +NTPClient timeClient(ntpUDP, "pool.ntp.org"); + +const char broker[] = BROKER_IP; // broker IP !!!!!!!!!!!!!!!!!!!!!!!!!!******* +int port = 1883; +const char ping_topic[] = "I1820/main/agent/ping"; +const char log_topic[] = "I1820/main/log/send"; +const char notif_topic[] = "I1820/main/configuration/request"; + +// set interval for sending messages (milliseconds) +const long interval = 5000; +unsigned long previousMillis = 0; + +StaticJsonDocument<200> doc; + +void onMqttMessage(int messageSize) +{ + // we received a message, print out the topic and contents + Serial.println("Received a message with topic '"); + Serial.print(mqttClient.messageTopic()); + Serial.print("', length "); + Serial.print(messageSize); + Serial.println(" bytes:"); + + String json = ""; + + // use the Stream interface to print the contents + while (mqttClient.available()) + json += (char)mqttClient.read(); + + Serial.println(json); + deserializeJson(doc, json); + + if ((doc["agent"] == "nodemcu") && (doc["settings"][0]["name"] == "on")) + { + if (doc["device"] == "l1") + digitalWrite(LEDS_PIN[0], doc["settings"][0]["value"]); + else if (doc["device"] == "l2") + digitalWrite(LEDS_PIN[1], doc["settings"][0]["value"]); + else if (doc["device"] == "l3") + digitalWrite(LEDS_PIN[2], doc["settings"][0]["value"]); + else if (doc["device"] == "l4") + digitalWrite(LEDS_PIN[3], doc["settings"][0]["value"]); + } + + Serial.println(); +} + +void setup() +{ + // Initialize serial and wait for port to open: + Serial.begin(9600); + while (!Serial) + ; // wait for serial port to connect. Needed for native USB port only + + // attempt to connect to Wifi network: + Serial.print("Attempting to connect to WPA SSID: "); + Serial.print(ssid); + while (WiFi.begin(ssid, pass) != WL_CONNECTED) + { + // failed, retry + Serial.print("."); + delay(5000); + } + Serial.println(); + + Serial.println("You're connected to the network"); + Serial.println(); + + Serial.print("Attempting to connect to the MQTT broker: "); + Serial.println(broker); + + if (!mqttClient.connect(broker, port)) + { + Serial.print("MQTT connection failed! Error code = "); + Serial.println(mqttClient.connectError()); + + while (1) + ; + } + + Serial.println("You're connected to the MQTT broker!"); + Serial.println(); + + mqttClient.onMessage(onMqttMessage); + + mqttClient.subscribe(notif_topic); + + for (unsigned int i = 0; i < sizeof(LEDS_PIN) / sizeof(LEDS_PIN[0]); i++) + pinMode(LEDS_PIN[i], OUTPUT); + + timeClient.begin(); + timeClient.setTimeOffset(0); +} + +void loop() +{ + // call poll() regularly to allow the library to send MQTT keep alive which + // avoids being disconnected by the broker + mqttClient.poll(); + + unsigned long currentMillis = millis(); + + if (currentMillis - previousMillis >= interval) + { + timeClient.update(); + // save the last time a message was sent + previousMillis = currentMillis; + + // **************** ping + String ping = "{\"id\": \"nodemcu\",\"things\": [{ \"id\": \"ldr\", \"type\": \"light\" }, { \"id\": \"l1\", \"type\": \"lamp\" }, { \"id\": \"l2\", \"type\": \"lamp\" }, { \"id\": \"l3\", \"type\": \"lamp\" }, { \"id\": \"l4\", \"type\": \"lamp\" }],\"actions\": []}"; + + Serial.print("Sending message to topic: "); + Serial.println(ping_topic); + Serial.println(ping); + + mqttClient.beginMessage(ping_topic); + mqttClient.print(ping); + mqttClient.endMessage(); + + // **************** ldr + int ldr_value = analogRead(LDR_PIN); + String ldr_message = "{\"timestamp\": " + String(timeClient.getEpochTime()) + ", \"type\": \"light\", \"device\": \"ldr\", \"states\": [{ \"name\": \"light\", \"value\": " + String(map(ldr_value, 0, 1024, 100, 0)) + " }], \"agent\": \"nodemcu\"}"; + + Serial.print("Sending message to topic: "); + Serial.println(log_topic); + Serial.println(ldr_message); + + mqttClient.beginMessage(log_topic); + mqttClient.print(ldr_message); + mqttClient.endMessage(); + + Serial.println(); + } +} diff --git a/test/README b/test/README new file mode 100755 index 0000000..e7d1588 --- /dev/null +++ b/test/README @@ -0,0 +1,11 @@ + +This directory is intended for PlatformIO 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 PlatformIO Unit Testing: +- https://docs.platformio.org/page/plus/unit-testing.html