Building golang on Raspberry Pi

With the continuous development of the Internet of Things and cloud computing technology, more and more companies and individuals have begun to pay attention to and use the Raspberry Pi, an open source hardware platform, and running golang on the Raspberry Pi is a common application requirement. . This article will take Raspberry Pi 3B as an example to introduce how to set up a golang development environment and how to run golang applications on Raspberry Pi.

Step One: Preparation

Before setting up the golang development environment, you need to update the Raspberry Pi system to the latest version. You can use the following command to update:

sudo apt-get update
sudo apt-get upgrade

Next, you need to download the golang installation package. You can go to the official website (https://golang.org/dl/) to download the latest golang installation package. This article takes go1.17.linux-armv6l.tar.gz as an example. After downloading, upload the installation package to the Raspberry Pi.

Step 2: Install golang

Installing golang is very simple, just unzip the installation package to the specified directory. You can use the following command to install:

sudo tar -C /usr/local -xzf go1.17.linux-armv6l.tar.gz

After decompression is completed, you need to set the GOPATH environment variable. You can use the following command to set it:

echo "export GOPATH=$HOME/go" >> ~/.bashrc
echo "export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin" >> ~/.bashrc
source ~/.bashrc

The above command will set the GOPATH environment variable to $HOME/go, and add the /usr/local/go/bin and $GOPATH/bin directories to the PATH environment variable .

Step 3: Verify the installation

After the installation is complete, you can use the following command to verify whether golang is installed successfully:

go version

If the output is similar to "go version go1.17 linux /arm", it means that golang has been installed successfully.

Step 4: Write and run golang applications

Writing and running golang applications on the Raspberry Pi is also very simple. First, you need to create a new golang project. You can use the following command to create a golang project named hello:

mkdir $HOME/go/src/hello

Then, create a file named main.go under the project and add the following code:

package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}

The above program The "Hello, world!" string will be output.

Next, use the following command to compile under the project:

cd $HOME/go/src/hello
go build

After the compilation is completed, you can use the following command to run the application:

./hello

The above command will output "Hello, world!" string.

Summary

Through the above steps, we successfully set up the golang development environment on the Raspberry Pi and wrote and ran a simple golang application. As an efficient, fast, safe and reliable programming language, golang will be more and more widely used on Raspberry Pi.

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