Add examples/rtl8720dn/udpstation

examples/rtl8720dn/udpstation/main.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/net/http"
+)
+
+// IP address of the server aka "hub". Replace with your own info.
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    password = "your-password"
+//    hubIP = "192.168.1.118"
+//    debug = true
+// }
+
+var (
+	ssid     string
+	password string
+	hubIP    = ""
+	debug    = false
+)
+
+var buf [0x400]byte
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	rtl, err := setupRTL8720DN()
+	if err != nil {
+		return err
+	}
+	net.UseDriver(rtl)
+	http.SetBuf(buf[:])
+
+	err = rtl.ConnectToAP(ssid, password)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := rtl.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	// now make UDP connection
+	hip := net.ParseIP(hubIP)
+	raddr := &net.UDPAddr{IP: hip, Port: 2222}
+	laddr := &net.UDPAddr{Port: 2222}
+
+	println("Dialing UDP connection...")
+	conn, err := net.DialUDP("udp", laddr, raddr)
+	if err != nil {
+		return err
+	}
+
+	for {
+		// send data
+		println("Sending data...")
+		for i := 0; i < 25; i++ {
+			conn.Write([]byte("hello " + strconv.Itoa(i) + "\r\n"))
+		}
+		time.Sleep(1000 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting UDP...")
+	conn.Close()
+	println("Done.")
+
+	return nil
+}
+
+func message(msg string) {
+	println(msg, "\r")
+}