From 0c01edd7e135fea982e8fd9a2a1002e2a4b12831 Mon Sep 17 00:00:00 2001 From: nixbi93 Date: Wed, 8 Oct 2025 15:34:39 +0200 Subject: [PATCH] initial commit --- .gitignore | 5 ++ .vscode/extensions.json | 10 +++ include/README | 37 +++++++++++ lib/README | 46 +++++++++++++ platformio.ini | 20 ++++++ src/main.cpp | 144 ++++++++++++++++++++++++++++++++++++++++ test/README | 11 +++ 7 files changed, 273 insertions(+) create mode 100644 .gitignore create mode 100644 .vscode/extensions.json create mode 100644 include/README create mode 100644 lib/README create mode 100644 platformio.ini create mode 100644 src/main.cpp create mode 100644 test/README 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..2e4ca52 --- /dev/null +++ b/platformio.ini @@ -0,0 +1,20 @@ +; 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:esp32dev] +platform = espressif32 +board = esp32dev +framework = arduino +lib_deps = + gioblu/PJON@^13.1 + knolleary/PubSubClient@^2.8 + braydenanderson2014/Hashtable@^1.1.3 + nkaaf/List@^3.0.1 + robtillaart/SET@^0.2.8 diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..b7ca35b --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,144 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#define RECEIVER 1 +#define SBBPIN 12 + + +// 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(); + +// WLAN Daten +const char* ssid = "DEIN_SSID"; +const char* password = "DEIN_PASSWORT"; + +// MQTT Daten +const char* mqtt_server = "DEIN_MQTT_BROKER"; +const int mqtt_port = 1883; + +// Strategy +StrategyLink link; + + +// Bus Address +PJONAny bus(1); + +struct mqttMessage { + uint8_t method; // 0: publish 1: subscribe 2: unsubscribe + char topic[250]; + char message[512]; +}; + +mqttMessage receiveBuffer; +bool receivedFlag = false; + +WiFiClient espClient; +PubSubClient client(espClient); + + +Hashtable subs; + + +void setup_wifi() { + WiFi.mode(WIFI_STA); + WiFi.begin(ssid, password); + while (WiFi.status() != WL_CONNECTED) { + delay(500); + } +} + +void reconnect() { + while (!client.connected()) { + if (client.connect("UltrasoundClient")) { + // Verbunden + } else { + delay(500); + } + } +} + +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(); + + setup_wifi(); + client.setServer(mqtt_server, mqtt_port); + client.setCallback(callback); +} + +void loop() { + // put your main code here, to run repeatedly: + bus.update(); + + if (receivedFlag) { + receivedFlag = false; + } + +} + + + +// 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 callback(char* topic, byte* payload, unsigned int length) { + + Serial.println(); + Set tempset; + memcpy(&tempset,subs.get(topic),sizeof(subs.get(topic))); + int n = tempset.first(); + while (n != -1) + { + publishMqtt(bus, n, topic,String((char)payload)); + n = tempset.next(); + } + +} + +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; + + if (receiveBuffer.method == 0){ + client.publish(receiveBuffer.topic,receiveBuffer.message); + } else if (receiveBuffer.method == 1){ + client.subscribe(receiveBuffer.topic); + if (!subs.exists(receiveBuffer.topic)){ + subs.put(receiveBuffer.topic,Set()); + } + subs.get(receiveBuffer.topic)->add(packet_info.tx.id); + + }else if (receiveBuffer.method == 2){ + subs.get(receiveBuffer.topic)->sub(packet_info.tx.id); + } + +}; +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