Learn Tinygo - 3 Code Examples & CST Typing Practice Test

TinyGo is a Go compiler designed for small devices, microcontrollers, WebAssembly, and other constrained environments. It enables developers to write Go code that can run efficiently on hardware with limited resources.

View all 3 Tinygo code examples →

Blink an LED Read Analog Sensor Control Servo Motor

Learn TINYGO with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Blink an LED

package main

import (
    "machine"
    "time"
)

func main() {
    led := machine.D13
    led.Configure(machine.PinConfig{Mode: machine.PinOutput})
    for {
        led.Toggle()
        time.Sleep(500 * time.Millisecond)
    }
}

Toggle an LED on pin 13 every 500 ms using TinyGo.

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Read Analog Sensor

package main

import (
    "machine"
    "time"
    "fmt"
)

func main() {
    sensor := machine.ADC{Pin: machine.A0}
    sensor.Configure()
    for {
        value := sensor.Get()
        fmt.Println("Sensor value:", value)
        time.Sleep(200 * time.Millisecond)
    }
}

Read a potentiometer on pin A0 and print the value to the serial console.

Let’s Try →

Control Servo Motor

package main

import (
    "machine"
    "time"
)

func main() {
    servo := machine.D9
    servo.Configure(machine.PinConfig{Mode: machine.PinPWM})
    for {
        for duty := 40; duty <= 115; duty += 5 {
        servo.Set(duty)
        time.Sleep(50 * time.Millisecond)
        }
        for duty := 115; duty >= 40; duty -= 5 {
        servo.Set(duty)
        time.Sleep(50 * time.Millisecond)
        }
    }
}

Sweep a servo motor using PWM on pin D9.

Let’s Try →

Frequently Asked Questions about Tinygo

What is Tinygo?

What are the primary use cases for Tinygo?

Programming microcontrollers and IoT devices in Go. Compiling Go code to WebAssembly for web applications. Rapid prototyping of embedded hardware projects. Creating low-memory, low-power applications. Teaching and experimenting with Go on constrained hardware

What are the strengths of Tinygo?

Enables Go programming on microcontrollers. Optimized for memory- and resource-constrained devices. Supports WebAssembly for browser/server environments. Simplifies embedded development with Go syntax. Active open-source community and rapid updates

What are the limitations of Tinygo?

Subset of Go language supported (not all packages available). Limited debugging capabilities compared to full Go. Some hardware features require low-level programming. Performance may be lower than C/C++ on microcontrollers. Not suitable for full desktop/server Go applications

How can I practice Tinygo typing speed?

CodeSpeedTest offers 3+ real Tinygo code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Learn Tinygo - 3 Code Examples & CST Typing Practice Test

Code Sample Descriptions

Blink an LED

package main

import (
    "machine"
    "time"
)

func main() {
    led := machine.D13
    led.Configure(machine.PinConfig{Mode: machine.PinOutput})
    for {
        led.Toggle()
        time.Sleep(500 * time.Millisecond)
    }
}

Toggle an LED on pin 13 every 500 ms using TinyGo.

Let’s Try →

Read Analog Sensor

package main

import (
    "machine"
    "time"
    "fmt"
)

func main() {
    sensor := machine.ADC{Pin: machine.A0}
    sensor.Configure()
    for {
        value := sensor.Get()
        fmt.Println("Sensor value:", value)
        time.Sleep(200 * time.Millisecond)
    }
}

Read a potentiometer on pin A0 and print the value to the serial console.

Let’s Try →

Control Servo Motor

package main

import (
    "machine"
    "time"
)

func main() {
    servo := machine.D9
    servo.Configure(machine.PinConfig{Mode: machine.PinPWM})
    for {
        for duty := 40; duty <= 115; duty += 5 {
        servo.Set(duty)
        time.Sleep(50 * time.Millisecond)
        }
        for duty := 115; duty >= 40; duty -= 5 {
        servo.Set(duty)
        time.Sleep(50 * time.Millisecond)
        }
    }
}

Sweep a servo motor using PWM on pin D9.

Let’s Try →

Frequently Asked Questions about Tinygo

What is Tinygo?

What are the primary use cases for Tinygo?

What are the strengths of Tinygo?

What are the limitations of Tinygo?

How can I practice Tinygo typing speed?

CodeSpeedTest offers 3+ real Tinygo code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.