83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
package main
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import (
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"fmt"
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"github.com/tarm/serial"
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"log"
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"math/rand"
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"os"
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"path/filepath"
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"strings"
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"time"
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)
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func RandomEUI64() string {
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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var letter = []rune("ABCDEF0123456789")
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b := make([]rune, 16+7)
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for i := range b {
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if (i+1)%3 == 0 {
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b[i] = '-'
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} else {
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b[i] = letter[r.Intn(len(letter))]
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}
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}
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return string(b)
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}
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func sendCommand(p *serial.Port, command string, waitForOk bool) string {
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fmt.Print(command)
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var status string = ""
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p.Flush()
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_, err := p.Write([]byte(command))
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if err != nil {
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log.Fatal(err)
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}
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buf := make([]byte, 32)
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var loop int = 1
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if waitForOk {
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loop = 10
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}
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time.Sleep(200 * time.Millisecond)
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for i := 0; i < loop; i++ {
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// ignoring error as EOF raises error on Linux
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n, _ := p.Read(buf)
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if n > 0 {
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status = string(buf[:n])
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fmt.Print(status)
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if strings.Contains(status, "OK") || strings.Contains(status, "?") {
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break
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}
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}
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}
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return status
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}
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func main() {
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if len(os.Args) != 3 {
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fmt.Println("usage: " + filepath.Base(os.Args[0]) + " <SerialDevice> <DevEUI>")
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os.Exit(1)
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}
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serialdev := os.Args[1]
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deveui := os.Args[2]
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c := &serial.Config{Name: serialdev, Baud: 115200, ReadTimeout: time.Second * 1}
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s, err := serial.OpenPort(c)
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if err != nil {
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log.Fatal("Problem mit Serial Interface")
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}
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sendCommand(s, "system configure syseui "+RandomEUI64()+"\n", true)
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sendCommand(s, "system configure platformguid 53ca094b-b888-465e-aa0e-e3064ec56d21\n", true)
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sendCommand(s, "system configure operatingflags 0\n", true)
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sendCommand(s, "lorawan configure deveui "+deveui+"\n", true)
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sendCommand(s, "lorawan configure appeui "+deveui+"\n", true)
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sendCommand(s, "lorawan configure appkey "+deveui+"-"+deveui+"\n", true)
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sendCommand(s, "lorawan configure join 1\n", true)
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}
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