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Ajeet Raina Ajeet Singh Raina is a former Docker Captain, Community Leader and Distinguished Arm Ambassador. He is a founder of Collabnix blogging site and has authored more than 700+ blogs on Docker, Kubernetes and Cloud-Native Technology. He runs a community Slack of 9800+ members and discord server close to 2600+ members. You can follow him on Twitter(@ajeetsraina).

Is it possible to run Docker container on Arduino Uno?

2 min read

The short answer is “No, you cannot run Docker containers directly on an Arduino Uno R3 board as it does not have an operating system or a Docker engine installed.”

Docker requires a Linux operating system with kernel support for containers, which is not available on the Arduino Uno R3 board. Additionally, the Arduino Uno R3 has limited processing power and memory, which would make it difficult to run Docker containers even if it had an operating system that supports them.

Arduino is an open-source electronics platform based on easy-to-use hardware and software. It was created to enable artists, designers, hobbyists, and anyone interested in electronics and programming to create interactive objects and projects. The Arduino platform includes a microcontroller board with a set of digital and analog input/output pins, and a development environment based on the Processing programming language. The development environment includes a code editor, a compiler, and a bootloader that allows users to upload code to the microcontroller board.

You may be able to use Docker to cross-compile and build code for your Arduino Uno R3 board on a separate computer with Docker installed. This involves using a toolchain to compile and build code for the board’s specific architecture and then flashing the resulting binary onto the board. There are several tutorials and resources available online that explain how to do this.

To use Docker to cross-compile and build code for your Arduino Uno R3 board on a separate computer, you can follow these general steps:

Step 1. Install Docker on your computer

You can download and install Docker Desktop for your operating system from the official Docker website.

Step 2. Choose a Docker image that contains a toolchain for cross-compiling Arduino code

There are several Docker images available on Docker Hub that include a toolchain for cross-compiling code for the Arduino Uno R3 board. 
For example, you can use the flyingcampdesign/arduino-cli image which comes pre-installed with the Arduino CLI toolchain.

Step 3. Create a Docker container from the chosen Docker image

Once you have selected a Docker image, you can create a Docker container from it by running the docker run command. For example, to create a Docker container from the flyingcampdesign/arduino-cli image, you can run the following command:

docker run -it flyingcampdesign/arduino-cli

This will create an interactive container that you can use to run the Arduino CLI toolchain.

Step 4. Mount the directory containing your code into the Docker container

In order to be able to build your code inside the Docker container, you need to mount the directory containing your code into the container. 

You can do this by using the -v option with the docker run command. For example, to mount a directory called my-project located in your current working directory, you can run the following command:

docker run -it -v "$(pwd)/my-project:/workdir" flyingcampdesign/arduino-cli

This will mount the my-project directory into the /workdir directory inside the container.

Step 4. Use the Arduino CLI toolchain to cross-compile and build your code

Once you are inside the Docker container, you can use the Arduino CLI toolchain to cross-compile and build your code. The exact commands you need to run will depend on your specific project and toolchain, but as an example, you can use the following command to compile and build an Arduino sketch called my-sketch.ino:

arduino-cli compile -b arduino:avr:uno /workdir/my-sketch.ino

This will compile and build the my-sketch.ino sketch for the Arduino Uno R3 board.

Step 5. Flash the resulting binary onto the Arduino Uno R3 board

Once you have successfully compiled and built your code, you can use the Arduino IDE or another flashing tool to flash the resulting binary onto your Arduino Uno R3 board.

Please note that cross-compiling and building code for the Arduino Uno R3 board can be a complex and error-prone process, so be sure to carefully follow the documentation and tutorials for your specific toolchain and environment.

Further Readings:

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Ajeet Raina Ajeet Singh Raina is a former Docker Captain, Community Leader and Distinguished Arm Ambassador. He is a founder of Collabnix blogging site and has authored more than 700+ blogs on Docker, Kubernetes and Cloud-Native Technology. He runs a community Slack of 9800+ members and discord server close to 2600+ members. You can follow him on Twitter(@ajeetsraina).
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