From 69cc0b22c417c7305b369dcdf7bcba48d569f094 Mon Sep 17 00:00:00 2001
From: Yurii Soldak <ysoldak@gmail.com>
Date: Tue, 11 May 2021 02:16:40 +0200
Subject: [PATCH] Example that connects to AP and prints ip addresses, time and
 mac

---
 examples/wifinina/connect/main.go | 134 ++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 examples/wifinina/connect/main.go

diff --git a/examples/wifinina/connect/main.go b/examples/wifinina/connect/main.go
new file mode 100644
index 0000000..d42a01d
--- /dev/null
+++ b/examples/wifinina/connect/main.go
@@ -0,0 +1,134 @@
+// This example connects to Access Point and prints some info
+package main
+
+import (
+	"encoding/binary"
+	"fmt"
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/wifinina"
+)
+
+// access point info
+const ssid = ""
+const pass = ""
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+
+	// these are the default pins for the Arduino Nano33 IoT.
+	uart = machine.UART2
+	tx   = machine.NINA_TX
+	rx   = machine.NINA_RX
+	spi  = machine.NINA_SPI
+
+	// this is the ESP chip that has the WIFININA firmware flashed on it
+	adaptor *wifinina.Device
+)
+
+func setup() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	// Configure SPI for 8Mhz, Mode 0, MSB First
+	spi.Configure(machine.SPIConfig{
+		Frequency: 8 * 1e6,
+		SDO:       machine.NINA_SDO,
+		SDI:       machine.NINA_SDI,
+		SCK:       machine.NINA_SCK,
+	})
+
+	adaptor = wifinina.New(spi,
+		machine.NINA_CS,
+		machine.NINA_ACK,
+		machine.NINA_GPIO0,
+		machine.NINA_RESETN)
+	adaptor.Configure()
+}
+
+func main() {
+
+	setup()
+
+	waitSerial()
+
+	connectToAP()
+
+	for {
+		println("---------------------------------")
+		printIPs()
+		printTime()
+		printMacAddress()
+		time.Sleep(10 * time.Second)
+	}
+
+}
+
+func printIPs() {
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		println("IP: Unknown (error: ", err.Error(), ")")
+		return
+	}
+	println("IP: ", ip.String())
+	println("Subnet: ", subnet.String())
+	println("Gateway IP: ", gateway.String())
+}
+
+func printTime() {
+	print("Time: ")
+	t, err := adaptor.GetTime()
+	if err != nil {
+		println("Unknown (error: ", err.Error(), ")")
+	}
+	fmt.Printf("%v\n", time.Unix(int64(t), 0))
+}
+
+func printMacAddress() {
+	print("MAC Address: ")
+	b := make([]byte, 8)
+	mac, err := adaptor.GetMACAddress()
+	if err != nil {
+		println("Unknown (", err.Error(), ")")
+	}
+	binary.LittleEndian.PutUint64(b, uint64(mac))
+	macAddress := ""
+	for i := 5; i >= 0; i-- {
+		macAddress += fmt.Sprintf("%0X", b[i])
+		if i != 0 {
+			macAddress += ":"
+		}
+	}
+	println(macAddress)
+}
+
+// Wait for user to open serial console
+func waitSerial() {
+	for !machine.UART0.DTR() {
+		time.Sleep(100 * time.Millisecond)
+	}
+}
+
+// connect to access point
+func connectToAP() {
+	if len(ssid) == 0 || len(pass) == 0 {
+		for {
+			println("Connection failed: Either ssid or password not set")
+			time.Sleep(10 * time.Second)
+		}
+	}
+	time.Sleep(2 * time.Second)
+	message("Connecting to " + ssid)
+	adaptor.SetPassphrase(ssid, pass)
+	for st, _ := adaptor.GetConnectionStatus(); st != wifinina.StatusConnected; {
+		message("Connection status: " + st.String())
+		time.Sleep(1 * time.Second)
+		st, _ = adaptor.GetConnectionStatus()
+	}
+	message("Connected.")
+}
+
+func message(msg string) {
+	println(msg, "\r")
+}