Archive for April, 2024

Golang: Create WiFi Connect QR Code

by on Apr.01, 2024, under News

Here’s the code:

package main

import (


var reader = bufio.NewReader(os.Stdin)

func askUserToEnterData(message string) string {
	fmt.Print(message + ": ")
	userInput, _ := reader.ReadString('\n')
	userInput = strings.TrimSpace(userInput)

	if len(userInput) == 0 {
		fmt.Println("Received no user input, exiting!")

	return userInput

func main() {
	ssid := askUserToEnterData("Enter WiFi name (SSID)")
	password := askUserToEnterData("Enter WiFi password")
	networkType := askUserToEnterData("Enter WiFi type (WPA, WEP, nopass)")

	// Encode the string using the WIFI scheme
	// WIFI:T:<NetworkType>;S:<SSID>;P:<Password>;;
	wifiString := fmt.Sprintf("WIFI:T:%s;S:%s;P:%s;;", networkType, ssid, password)

	// Generate and save the QR code
	err := qrcode.WriteFile(wifiString, qrcode.Medium, 256, "wifi-qr.png")
	if err != nil {
		fmt.Println("Failed to generate QR code:", err)

	fmt.Println("QR code generated successfully: wifi-qr.png")
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