Potential of golang framework in IoT or embedded systems?

The advantages of the Go framework in the Internet of Things and embedded systems are: high concurrency and support for efficient multi-core processing. Low memory footprint, suitable for constrained devices. Cross-platform support and can be compiled on multiple architectures. Practical case: Developed MQTT gateway using Go to implement data subscription and processing. Developed an embedded device program using Go to configure GPIO pins to control LEDs.

The potential of the Go framework in IoT and embedded systems

Go is a high-performance, concurrent programming language. Particularly suitable for developing Internet of Things (IoT) and embedded systems. It provides the following benefits:

• High concurrency: Go’s built-in concurrency features allow you to easily write parallel code to maximize utilization of multi-core processors.
• Low memory footprint: Go binaries are very compact, making them suitable for embedded devices with limited memory.
• Cross-platform support: Go can compile on multiple architectures including ARM, MIPS, and RISC-V, making it ideal for developing cross-platform IoT solutions.

Practical case

Use Go to develop IoT gateway:

import (
    "fmt"
    "net/http"
    "time"

    mqtt "github.com/eclipse/paho.mqtt.golang"
)

func main() {
    // 创建 MQTT 客户端
    opts := mqtt.NewClientOptions()
    opts.AddBroker("tcp://localhost:1883")
    client := mqtt.NewClient(opts)

    // 连接到 MQTT 代理
    if token := client.Connect(); token.Wait() && token.Error() != nil {
        panic(token.Error())
    }

    // 配置 HTTP 服务器
    http.HandleFunc("/", indexHandler)

    // 启动 HTTP 服务器
    go http.ListenAndServe(":8080", nil)

    // 订阅 MQTT 主题
    if token := client.Subscribe("my/topic", 0, messageHandler); token.Wait() && token.Error() != nil {
        panic(token.Error())
    }

    for {
        fmt.Println("Running...")
        time.Sleep(time.Second)
    }
}

// HTTP 请求处理程序
func indexHandler(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(http.StatusOK)
}

// MQTT 消息处理程序
func messageHandler(client mqtt.Client, msg mqtt.Message) {
    fmt.Printf("Received message: %s\n", msg.Payload())
}

Use Go to develop embedded Equipment:

import (
    "machine"
)

func main() {
    // 打开 GPIO 引脚 13 作为输出
    led := machine.GPIO{13}
    led.Configure(machine.PinOutput)

    for {
        // 开启 LED
        led.SetLow()
        time.Sleep(100 * time.Millisecond)

        // 关闭 LED
        led.SetHigh()
        time.Sleep(100 * time.Millisecond)
    }
}

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