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Installation on Ubuntu

The following chapter will guide you through the CHESTER SDK installation on Ubuntu. It has been tested on Ubuntu versions 20.04 and 22.04.


Before you begin, make sure you comply with the chapter Requirements.

Installation Steps

  1. Open the Terminal application.

  2. Get the package with the udev rules:

  3. Install the package with the udev rules:

    sudo dpkg -i nrf-udev_1.0.1-all.deb
  4. Remove the package with the udev rules:

    rm nrf-udev_1.0.1-all.deb
  5. Install the following APT packages:

    sudo apt install --no-install-recommends git cmake ninja-build gperf ccache dfu-util device-tree-compiler wget python3-dev python3-pip python3-setuptools python3-tk python3-wheel xz-utils file make gcc gcc-multilib g++-multilib libsdl2-dev
  6. Create a target directory for the toolchain:

    mkdir -p $HOME/.local/opt
  7. Download and unpack the toolchain:

    wget -c -O - | tar -xz --directory $HOME/.local/opt
  8. Run the setup script from the toolchain directory:

  9. Create the directory for your application and switch to it:

    mkdir chester-app && cd chester-app

    Change the parameter chester-app to any desired name for your project directory.

  10. Initialize the Python virtual environment:

    python3 -m venv venv
  11. Activate the Python virtual environment:

    source venv/bin/activate

    You must reactivate the virtual Python environment when you close the shell (or your text editor with the integrated terminal). Call this command (used in the procedure above): source venv/bin/activate. In the future, you may have various West workspaces with different versions of the tools, and thanks to the virtual environment, these will not be in version conflict.

  12. Install the West tool:

    pip install west
  13. Initialize the West workspace where you want to start your project:

    west init -m --manifest-rev main
  14. Set the default board to CHESTER:

    west config build.board chester_nrf52840
  15. Synchronize the West workspace:

    west update
  16. Export Zephyr environment:

    west zephyr-export
  17. Install the Python dependencies:

    pip install -r zephyr/scripts/requirements.txt
    pip install -r nrf/scripts/requirements.txt
    pip install -r bootloader/mcuboot/scripts/requirements.txt
    pip install -r chester/scripts/requirements.txt

Test Build

  1. Go to the blinky sample directory:

    cd chester/samples/blinky
  2. Check that you can build the sample:

    west build

    The final build result should look like this:

    Memory region         Used Size  Region Size  %age Used
    FLASH: 112320 B 1 MB 10.71%
    SRAM: 60576 B 256 KB 23.11%
    IDT_LIST: 0 GB 2 KB 0.00%

Install nRF Connect for Desktop

Go to this link:

On Ubuntu, download the AppImage file and give it executable rights.