> For the complete documentation index, see [llms.txt](https://www.multi-module.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.multi-module.org/advanced-topics/compiling-the-firmware.md).

# Compiling the Firmware

Compiling the MULTI-Module firmware is not overly difficult, even for a newcomer to embedded code.  All of the configuration options are contained in a single file, which is documented with comments.

At a high level, there are four steps:

**Step 1:**  Download the MULTI-Module source code

**Step 2:**  Install and configure the Arduino IDE tools

**Step 3:**  Edit and compile the code

**Step 4:**  Upload the compiled code to the MULTI-Module

The full documentation for each step can be found on the MULTI-Module GitHub repository:

<https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/docs/Compiling_STM32.md>