From 7f56f9806c13934431e2701170ca808ce869d1fa Mon Sep 17 00:00:00 2001 From: Matthias Schild Date: Tue, 1 Sep 2026 00:46:46 +0200 Subject: [PATCH] feat: initial commit --- .gitignore | 5 +++ .vscode/extensions.json | 10 +++++ README.md | 28 +++++++++++++ include/README | 37 ++++++++++++++++++ lib/README | 46 ++++++++++++++++++++++ platformio.ini | 16 ++++++++ src/main.cpp | 87 +++++++++++++++++++++++++++++++++++++++++ test/README | 11 ++++++ 8 files changed, 240 insertions(+) create mode 100644 .gitignore create mode 100644 .vscode/extensions.json create mode 100644 README.md 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/README.md b/README.md new file mode 100644 index 0000000..0f57dc4 --- /dev/null +++ b/README.md @@ -0,0 +1,28 @@ +# DMX Controller + +# Lessons learned + +- Man kann super Serial1 als Ausgang verwenden +- + +# About DMX + +- Baud 250.000 + +## About the Whadda DMX512 / Velleman VMA432 + +- Voltage: 5V +- Pins: + - GND - Ground + - VCC - 5V + - NC - Not connected + - SIG - Input for the controller, UART TX + +## UART on the ESP8266 NodeMCU + +- UART0 + - RX = GPIO3 RX + - TX = GPIO1 TX +- UART1 + - RX = No RX + - TX = GPIO2 D4 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..6ffad0c --- /dev/null +++ b/platformio.ini @@ -0,0 +1,16 @@ +; 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:esp12e] +platform = espressif8266 +board = nodemcuv2 +framework = arduino +lib_deps = + rickgg/ESPDMX \ No newline at end of file diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..60a2edf --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,87 @@ +#include +#include + +DMXESPSerial dmx; + +void setup() +{ + Serial.begin(9600); + dmx.init(512); + delay(200); +} + +struct Command +{ + bool valid; + int address; + int value; +}; + +Command readCommand() +{ + static String buffer = ""; + Command result = {false, 0, 0}; + + while (Serial.available() > 0) + { + char c = Serial.read(); + + if (c == '\n') + { + String line = buffer; + buffer = ""; + + line.trim(); + if (line.length() == 0) + return result; + + int eqPos = line.indexOf('='); + if (eqPos == -1) + return result; + + String left = line.substring(0, eqPos); + String right = line.substring(eqPos + 1); + + left.trim(); + right.trim(); + + if (!left.length() || !right.length()) + return result; + + int address = left.toInt(); + int value = right.toInt(); + + if (address >= 0 && address < 512 && + value >= 0 && value < 256) + { + + result.valid = true; + result.address = address; + result.value = value; + } + + return result; + } + else + { + if (buffer.length() < 64) + { + buffer += c; + } + } + } + + return result; +} + +void loop() +{ + Command command = readCommand(); + if (command.valid) + { + dmx.write(command.address, command.value); + } + + dmx.update(); + delay(1); +} 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