foglar
b7c477b37e
- Serial reader read data, and outputs them - Sender send temperature - Receiver transmits data via serial
102 lines
1.6 KiB
Go
102 lines
1.6 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/tarm/serial"
|
|
"log"
|
|
"os"
|
|
"time"
|
|
)
|
|
|
|
func portInput() string {
|
|
var port string
|
|
for true {
|
|
port = ""
|
|
fmt.Print("Enter port to listen on (for example - '/dev/ttyACM0'): ")
|
|
fmt.Scanln(&port)
|
|
|
|
if port == "" {
|
|
port = "/dev/ttyACM0"
|
|
}
|
|
|
|
_, err := os.Stat(port)
|
|
if !os.IsNotExist(err) {
|
|
break
|
|
} else {
|
|
fmt.Println("Invalid port")
|
|
}
|
|
}
|
|
|
|
return port
|
|
}
|
|
|
|
func baudrateInput() int {
|
|
var baudrate int
|
|
var s_baudrate string
|
|
|
|
fmt.Print("Enter baudrate (for example - '9600'): ")
|
|
fmt.Scanln(&s_baudrate)
|
|
|
|
switch s_baudrate {
|
|
case "4800":
|
|
baudrate = 4800
|
|
case "9600":
|
|
baudrate = 9600
|
|
case "115200":
|
|
baudrate = 115200
|
|
default:
|
|
baudrate = 9600
|
|
}
|
|
return baudrate
|
|
}
|
|
|
|
func UserInput() (string, int) {
|
|
port := portInput()
|
|
baudrate := baudrateInput()
|
|
|
|
return port, baudrate
|
|
}
|
|
|
|
func getTime() string {
|
|
return time.Now().Format("2006-1-2_15:4:5")
|
|
}
|
|
|
|
func main() {
|
|
// User input
|
|
port, baudrate := UserInput()
|
|
|
|
// Listen on port
|
|
fmt.Printf("Listening on port %s with baudrate %d:\n", port, baudrate)
|
|
c := &serial.Config{Name: port, Baud: baudrate}
|
|
|
|
// Create file
|
|
filename := getTime() + ".txt"
|
|
f, err := os.Create(filename)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
// Open port
|
|
s, err := serial.OpenPort(c)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
var n int
|
|
for {
|
|
// create a buffer
|
|
buf := make([]byte, 254)
|
|
|
|
// Read length of serial input
|
|
n, err = s.Read(buf)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// Print as a string
|
|
fmt.Print(string(buf[:n]))
|
|
f.WriteString(string(buf[:n]))
|
|
}
|
|
}
|