commit db37fbb4beeb71ebd1e6f90ded8dccdffddc91f4 Author: nixbi93 Date: Wed Oct 8 15:37:45 2025 +0200 init commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..89cc49c --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +.pio +.vscode/.browse.c_cpp.db* +.vscode/c_cpp_properties.json +.vscode/launch.json +.vscode/ipch diff --git a/.vscode/extensions.json b/.vscode/extensions.json new file mode 100644 index 0000000..080e70d --- /dev/null +++ b/.vscode/extensions.json @@ -0,0 +1,10 @@ +{ + // 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" + ] +} diff --git a/include/README b/include/README new file mode 100644 index 0000000..49819c0 --- /dev/null +++ b/include/README @@ -0,0 +1,37 @@ + +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 convention is to give header files names that end with `.h'. + +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 100644 index 0000000..9379397 --- /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 the executable file. + +The source code of each library should be placed in a separate directory +("lib/your_library_name/[Code]"). + +For example, see the structure of the following example libraries `Foo` and `Bar`: + +|--lib +| | +| |--Bar +| | |--docs +| | |--examples +| | |--src +| | |- Bar.c +| | |- Bar.h +| | |- library.json (optional. for 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 + +Example contents of `src/main.c` using Foo and Bar: +``` +#include +#include + +int main (void) +{ + ... +} + +``` + +The PlatformIO Library Dependency Finder will find automatically dependent +libraries by 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 100644 index 0000000..d740d05 --- /dev/null +++ b/platformio.ini @@ -0,0 +1,17 @@ +; 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:esp01_1m] +platform = espressif8266 +board = esp01_1m +framework = arduino +lib_deps = + gioblu/PJON@^13.1 + bblanchon/ArduinoJson@^7.4.2 diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..fc62860 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,104 @@ +#include +#include +#include +#include + +#define RECEIVER 1 +#define SBBPIN 12 + +String topic = "pjon/44"; + +// put function declarations here: + +void publishMqtt(PJONAny, uint8_t, String, String ); +void receiver_function(uint8_t , uint16_t length, const PJON_Packet_Info); +void error_handler(uint8_t, uint16_t); +long getDistance(); + + +// Strategy +StrategyLink link; + + +// Bus Address +PJONAny bus(44); + +// Ultraschallsensor Pins +const int trigPin = 5; // z. B. GPIO5 +const int echoPin = 18; // z. B. GPIO18 + + +struct mqttMessage { + uint8_t method; // 0: publish 1: subscribe + char topic[250]; + char message[512]; +}; + +mqttMessage receiveBuffer; +bool receivedFlag = false; + +void setup() { + // put your setup code here, to run once: + + link.strategy.set_pin(SBBPIN); + bus.strategy.set_link(&link); + bus.set_error(error_handler); + bus.set_receiver(receiver_function); + bus.begin(); +} + +void loop() { + // put your main code here, to run repeatedly: + bus.update(); + publishMqtt(bus,RECEIVER, topic,String(getDistance())); + + if (receivedFlag) { + receivedFlag = false; + } + +} + + +long getDistance() { + digitalWrite(trigPin, LOW); + delayMicroseconds(2); + digitalWrite(trigPin, HIGH); + delayMicroseconds(10); + digitalWrite(trigPin, LOW); + long duration = pulseIn(echoPin, HIGH); + long distance = duration / 58; // Entfernung in cm + return distance; +} + + + + + + + + + + +// JSONMqtt funktions + +void publishMqtt(PJONAny bus, uint8_t destAddress, String topic, String message ){ + mqttMessage mqMessage; + mqMessage.method = 0; + topic.toCharArray(mqMessage.topic, topic.length()); + message.toCharArray(mqMessage.message, message.length()); + bus.send(destAddress,&mqMessage,sizeof(mqMessage)); +} + +void receiver_function(uint8_t *payload, uint16_t length, const PJON_Packet_Info &packet_info) { + + /* Copy received data in buffer */ + memcpy(&receiveBuffer, payload, sizeof(receiveBuffer)); + receivedFlag = true; + +}; +void error_handler(uint8_t code, uint16_t data, void *custom_pointer) { + if(code == PJON_CONNECTION_LOST) { + Serial.print("Connection lost with device id "); + Serial.println(bus.packets[data].content[0], DEC); + } +}; \ No newline at end of file diff --git a/test/README b/test/README new file mode 100644 index 0000000..9b1e87b --- /dev/null +++ b/test/README @@ -0,0 +1,11 @@ + +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