Learn in simple terms and write embedded programs with Golang

The steps to write embedded programs using Golang are as follows: Import the necessary libraries. Initialize GPIO. Loop through the LEDs. This allows you to create efficient and portable embedded applications that work across a variety of operating systems and microcontrollers.

In-depth explanation: Writing embedded programs with Golang

Introduction
Golang is a powerful programming language used to build a variety of applications, including embedded systems. This article will guide you in using Golang to create embedded programs and provide practical cases for demonstration.

Basic Concept
Embedded systems refer to computer devices embedded in larger systems. They are commonly used to control and monitor real-world devices. Golang provides many features that are ideal for embedded development, such as:

• Concurrency: Golang supports concurrent programming, allowing you to write programs that perform multiple tasks simultaneously. This is critical for embedded systems, which need to process data from a variety of sensors and actuators.
• Low resource overhead: Programs written in Golang consume low memory and processing power, making it ideal for embedded devices.
• Cross-platform: Golang can run on different operating systems and microcontrollers, enabling you to write programs that can be used on a variety of embedded devices.

Practical Case: Controlling LED Lights

Now, let us write a practical program to control LED lights through GPIO using Golang. In order to accomplish this task, we need to perform the following steps:

1. Import the necessary libraries:

   import (
    "machine"
    "time"
   )

2. ## Initialize GPIO:

   led := machine.LED
   led.Configure(machine.PinConfig{Mode: machine.PinOutput})

3. Loop control LED:

   for {
    // 打开 LED
    led.High()
    time.Sleep(1 * time.Second)
   
    // 关闭 LED
    led.Low()
    time.Sleep(1 * time.Second)
   }

##Run the program

Save the above code as a file named

main.go

and compile it, then load it on your embedded device. Run the program and you will see the LED flashing once per second.

Conclusion

This tutorial demonstrates how to write embedded programs using Golang. By leveraging Golang's concurrency, low overhead, and cross-platform capabilities, you can easily create efficient and portable embedded applications.

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