Added GetTime. Added independent internet port. Debugged internet connection.

api/modem/gps/status.go

@@ -42,14 +42,14 @@ checkLoop:
 		}
 		st.GotResponses = true
 
-		g.logger.Println("NMEA check:", s)
+		// g.logger.Println("NMEA check:", s)
 		values := strings.Split(s, ",")
 		if len(values[0]) != 6 {
 			return StatusNil, fmt.Errorf("nmea invalid sentence: %s", s)
 		}
 		switch values[0][3:] { // Switch by content
 		case "GSV": // Any satelites
-			g.logger.Println("check GSV")
+			// g.logger.Println("check GSV")
 			// Check len
 			if len(values) < 17 {
 				g.logger.Println("GSV too small values")
@@ -83,7 +83,7 @@ checkLoop:
 			}
 			st.FoundSatelitesCount = satCount
 		case "GSA": // Active satelites
-			g.logger.Println("check GSA")
+			// g.logger.Println("check GSA")
 
 			// Check len
 			if len(values) < 17 {
@@ -107,7 +107,7 @@ checkLoop:
 			}
 			st.ActiveSatelitesCount = max(st.ActiveSatelitesCount, count)
 		case "RMC": // Minimum GPS data
-			g.logger.Println("check RMC")
+			// g.logger.Println("check RMC")
 			// Check len
 			if len(values) < 12 {
 				g.logger.Println("RMC too small values")
@@ -125,7 +125,7 @@ checkLoop:
 				st.IsValidData = true
 			}
 		case "GST":
-			g.logger.Println("check GST")
+			// g.logger.Println("check GST")
 			// Check len
 			if len(values) < 8 {
 				g.logger.Println("GST too small values")

api/modem/internet/ic.go

@@ -8,45 +8,27 @@ import (
 	"strings"
 
 	"gitea.unprism.ru/KRBL/sim-modem/api/modem/at"
-	"gitea.unprism.ru/KRBL/sim-modem/api/modem/utils"
 )
 
-var apns = map[string]string{
-	"Tinkoff": "m.tinkoff",
-}
-
-const pppConfigName = "annalistnet"
-const pppConfig = `
-# Annalist project custom internet connection
-
-# APN:
-connect "/usr/sbin/chat -v -f /etc/chatscripts/gprs -T %s"
-
-# Port:
-%s
-
-# Baudrate:
-%d
-
-noipdefault
-usepeerdns
-defaultroute
-persist
-noauth
-nocrtscts
-local
-`
-
 type conn struct {
 	logger *log.Logger
 	port   at.Port
+
+	pppPort string
+
+	isConnectExecuted bool
+	isInited          bool
 }
 
 type Conn interface {
-	Init() error
+	Init(pppPort string) error
+
 	Connect() error
 	Disconnect() error
-	Ping() bool // Is connected
+
+	IsConnected() bool // Check interface existance
+	Ping() error
+
 	io.Closer
 }
 
@@ -54,79 +36,119 @@ func New(logger *log.Logger, port at.Port) Conn {
 	return &conn{
 		logger:            logger,
 		port:              port,
+		isConnectExecuted: false,
+		isInited:          false,
 	}
 }
 
+func (c *conn) Init(pppPort string) error {
+	c.pppPort = pppPort
+	// Setup only setup
+	if err := c.setup(); err != nil {
+		return fmt.Errorf("setup: %w", err)
+	}
+	c.isInited = true
+	return nil
+}
+
 func (c *conn) Connect() error {
-	if ok, err := utils.CheckService(c.port, c.logger); err != nil || !ok {
+	if !c.isInited {
-		if err != nil {
+		return fmt.Errorf("internet submodule is not inited")
-			return fmt.Errorf("check service: %w", err)
 	}
-		return fmt.Errorf("no service")
+	// Check is already connected
+	if c.isConnectExecuted {
+		return fmt.Errorf("already connected")
 	}
+	// Check signal
+	// if ok, err := utils.CheckService(c.port, c.logger); err != nil || !ok {
+	// 	if err != nil {
+	// 		return fmt.Errorf("check service: %w", err)
+	// 	}
+	// 	return fmt.Errorf("no service")
+	// }
 
 	resp, err := exec.Command("pon", pppConfigName).Output()
 	if err != nil {
-		return fmt.Errorf("execute connect cmd: %w", err)
+		return fmt.Errorf("execute pon cmd: %w", err)
 	}
-	c.logger.Println("DEBUG pon response:", string(resp))
+	if len(resp) > 0 {
+		c.logger.Println("pon response:", string(resp))
+	}
+	c.isConnectExecuted = true
+
+	// Set default route
+
+	c.logger.Println("\x1b[38;2;0;255;0mInternet connected.\x1b[38;2;255;255;255m")
 	return nil
 }
 
 func (c *conn) Disconnect() error {
+	// return nil // Temporary do not turn off inet
+	if !c.isConnectExecuted {
+		return nil
+		// return fmt.Errorf("internet is not connected")
+	}
+	c.isConnectExecuted = false
 	resp, err := exec.Command("poff", pppConfigName).Output()
 	if err != nil {
-		return fmt.Errorf("execute disconnect cmd: %w", err)
+		return fmt.Errorf("execute poff cmd: %w", err)
 	}
-	c.logger.Println("DEBUG poff response:", string(resp))
+	if len(resp) > 0 {
+		c.logger.Println("poff response:", string(resp))
+	}
+	c.isConnectExecuted = false
 	return nil
 }
 
-func (c *conn) Init() error {
+func (c *conn) Ping() error {
-	// Setup
-	if err := c.setup(); err != nil {
-		return fmt.Errorf("setup: %w", err)
-	}
-	// // Connect
-	// c.logger.Println("Connect...")
-	// if err := c.Connect(); err != nil {
-	// 	return fmt.Errorf("connect: %w", err)
-	// }
-
-	// //DEBUG
-	// resp, err := exec.Command("ifconfig").Output()
-	// if err != nil {
-	// 	return fmt.Errorf("execute ifconfig cmd: %w", err)
-	// }
-	// c.logger.Println("DEBUG ifconfig resp:", string(resp))
-
-	// // Test connectin using Ping
-	// c.logger.Println("Test...")
-	// if !c.Ping() {
-	// 	return fmt.Errorf("ping failed")
-	// }
-	return nil
-}
-
-func (c *conn) Ping() bool {
 	// Test - try to connect to Google DNS
 	//   ping -I ppp0 8.8.8.8
 	resp, err := exec.Command("ping", "8.8.8.8").Output()
 	if err != nil {
-		c.logger.Println("Ping 1 cmd error:", err)
+		c.logger.Println("Ping default interface cmd error:", err)
 	}
-	c.logger.Println("Ping 1 resp:", string(resp))
+	c.logger.Println("Ping  default interface resp:", string(resp))
 
 	resp, err = exec.Command("ping", "-I", "ppp0", "8.8.8.8").Output()
 	if err != nil {
-		c.logger.Println("Ping 2 cmd error:", err)
+		c.logger.Println("Ping ppp0 interface cmd error:", err)
 	}
-	c.logger.Println("Ping 2 resp:", string(resp))
+	c.logger.Println("Ping ppp0 interface resp:", string(resp))
 
-	return !(strings.Contains(string(resp), "Destination Host Unreachable") || strings.Contains(string(resp), "Destination Net Unreachable")) // tmp solution
+	if strings.Contains(string(resp), "Destination Host Unreachable") || strings.Contains(string(resp), "Destination Net Unreachable") {
+		return fmt.Errorf("ping response: %s", string(resp))
+	}
+	return nil
+}
+
+func (c *conn) IsConnected() bool {
+	if !c.isConnectExecuted {
+		return false
+	}
+	// Make "ifconfig" request
+	resp, err := exec.Command("ifconfig").Output()
+	if err != nil {
+		c.logger.Println("ifconfig cmd error:", err.Error())
+		return false
+	}
+	lines := strings.Split(string(resp), "\n")
+	for _, l := range lines {
+		if len(l) == 0 {
+			continue
+		}
+		if l[0] == ' ' {
+			continue
+		}
+		interfaceName := strings.Split(l, ":")[0]
+		if interfaceName == "ppp0" {
+			return true
+		}
+	}
+	return false // Did not found
 }
 
 func (c *conn) Close() error {
+	c.isInited = false
 	if err := c.Disconnect(); err != nil {
 		return fmt.Errorf("diconnect: %w", err)
 	}

api/modem/internet/setup.go

@@ -9,27 +9,40 @@ import (
 	"gitea.unprism.ru/KRBL/sim-modem/api/modem/utils"
 )
 
+var apns = map[string]string{
+	"Tinkoff": "m.tinkoff",
+	"Megafon": "internet",
+	"BeeLine": "internet.beeline.ru",
+}
+
+const pppConfigName = "annalistnet"
+const pppConfig = `
+# Annalist project custom internet connection
+
+# APN:
+connect "/usr/sbin/chat -v -f /etc/chatscripts/gprs -T %s"
+
+# Port:
+%s
+
+# Baudrate:
+%d
+
+noipdefault
+usepeerdns
+defaultroute
+persist
+noauth
+nocrtscts
+local
+`
+
 func (c *conn) setup() error {
-	c.logger.Println("Check requirenments...")
 	if err := c.checkReqs(); err != nil {
 		return fmt.Errorf("check requirenments: %w", err)
 	}
-	// DEBUG show networks and signal
-	resp, err := c.port.Send("AT+COPS?")
-	if err != nil {
-		return fmt.Errorf("AT+COPS? request: %w", err)
-	}
-	c.logger.Println("DEBUG networks:", resp)
-
-	resp, err = c.port.Send("AT+CSQ")
-	if err != nil {
-		return fmt.Errorf("AT+CSQ request: %w", err)
-	}
-	c.logger.Println("DEBUG signal quality:", resp)
-
 	// Configure ppp
 	// what is better ASK If /etc/ppp/peers/annalistnet not exists
-	c.logger.Println("Configure ppp...")
 	if err := c.configurePPP(); err != nil {
 		return fmt.Errorf("configure ppp: %w", err)
 	}
@@ -75,9 +88,8 @@ func (c *conn) ensurePackage(pname string) error {
 
 func (c *conn) checkPackageExist(pname string) bool {
 	resp, err := exec.Command("apt-mark", "showmanual", pname).Output()
-	c.logger.Println("CHECK:", resp)
 	if err != nil {
-		c.logger.Println("CHECK PACKAGE ERROR: ", err.Error())
+		c.logger.Println("check package error: ", err.Error())
 		return false
 	}
 	return string(resp[:len(pname)]) == pname
@@ -103,8 +115,8 @@ func (c *conn) configurePPP() error {
 	}
 
 	// Make config
-	c.logger.Printf("Config values: %s, %s, %d", apn, c.port.GetName(), c.port.GetBaudrate())
+	c.logger.Printf("Config ppp values: %s, %s, %d", apn, c.pppPort, c.port.GetBaudrate())
-	config := fmt.Sprintf(pppConfig, apn, c.port.GetName(), c.port.GetBaudrate())
+	config := fmt.Sprintf(pppConfig, apn, c.pppPort, c.port.GetBaudrate())
 
 	// Write to file
 	f, err := os.OpenFile("/etc/ppp/peers/"+pppConfigName, os.O_CREATE|os.O_WRONLY, 0666)

api/modem/modem.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"os"
 	"os/exec"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -17,6 +18,9 @@ import (
 	"gitea.unprism.ru/KRBL/sim-modem/api/modem/sms"
 )
 
+// yy/MM/dd,hh:mm:ss+zzzz
+const timeLayout = "06/01/02,15:04:05-0700"
+
 type ModemData struct {
 	Port string `json:"Port"`
 	gps.Data
@@ -53,6 +57,7 @@ type Modem interface {
 	IsConnected() bool
 	Update() error
 	GetData() ModemData
+	GetTime() (time.Time, error)
 
 	PowerOn() error
 	PowerOff() error
@@ -61,6 +66,7 @@ type Modem interface {
 	At() at.Port       // Send
 	Gps() gps.Gps      // Update, GetData, GetStatus
 	Sms() sms.Sms      // Send, ReadNew
+	Ic() internet.Conn // Connect, Disconnect
 
 	io.Closer
 }
@@ -80,29 +86,41 @@ func (m *modem) Init() error {
 	defer m.mutex.Unlock()
 
 	// Turn module on
-	m.logger.Println("=============================== Turn on module")
+	m.logger.Println("=============================== Init gpio")
 	if err := m.onOffPin.Init(); err != nil {
 		return fmt.Errorf("gpio pin init: %w", err)
 	}
 
 	// Search
 	m.logger.Println("=============================== Search")
-	// Soft search
+	ports, err := m.searchPort(true)
-	if err := m.searchPort(true); err != nil {
+	if err != nil {
 		return fmt.Errorf("soft port search: %w", err)
 	}
+	if len(ports) == 0 {
 		// Wide search
-	if m.port == nil {
+		ports, err := m.searchPort(true)
-		if err := m.searchPort(false); err != nil {
+		if err != nil {
-			return fmt.Errorf("not soft port search: %w", err)
+			return fmt.Errorf("wide port search: %w", err)
+		}
+		if len(ports) == 0 {
+			return fmt.Errorf("no AT ports found")
 		}
 	}
-	if m.port == nil {
+	if len(ports) == 1 {
-		return fmt.Errorf("no port is detected")
+		// return fmt.Errorf("only one AT port found")
+		m.logger.Println("!!!!! only one AT port found")
 	}
 
+	// !!!!
+	// Internet connection and serial connection on one port is impossible, so:
+	//   port[0] is for serial
+	//   port[1] is for internet(ppp)
+	m.logger.Println(ports)
+
 	// Connect
 	m.logger.Println("=============================== Connect")
+	m.port = at.New(m.logger, ports[0], m.baudrate)
 	if err := m.connect(); err != nil {
 		return fmt.Errorf("connect: %w", err)
 	}
@@ -113,17 +131,11 @@ func (m *modem) Init() error {
 
 	m.logger.Println("=============================== Init submodules")
 	// m.ic = internet.New(log.New(submodulesLogger, "modem-internet : ", log.LstdFlags), m.port)
-	// if err := m.ic.Init(); err != nil {
+	// if err := m.ic.Init(ports[1]); err != nil {
 	// 	m.logger.Printf("\x1b[38;2;255;0;0mInternet: %s\x1b[38;2;255;255;255m\n", err.Error())
 	// } else {
 	// 	m.logger.Println("\x1b[38;2;0;255;0mInternet OK\x1b[38;2;255;255;255m")
 	// }
-	//
-	// if err := m.ic.Connect(); err != nil {
-	// 	m.logger.Println("connect to internet: %w", err)
-	// } else {
-	// 	m.logger.Println("internet connected")
-	// }
 
 	// m.sms = sms.New(log.New(submodulesLogger, "modem-sms : ", log.LstdFlags), m.port)
 	// if err := m.sms.Init(); err != nil {
@@ -176,6 +188,35 @@ func (m *modem) GetData() ModemData {
 	}
 }
 
+func (m *modem) GetTime() (time.Time, error) {
+	// Make request
+	resp, err := m.port.Send("AT+CCLK?")
+	if err != nil {
+		return time.Time{}, err
+	}
+	if !resp.Check() || !resp.CheckFront("+CCLK: ") {
+		return time.Time{}, fmt.Errorf("CCLK? error response: %s", resp.String())
+	}
+	// Extract time string
+	values := strings.Split(strings.Split(resp.String(), "\n")[0], "\"")
+	if len(values) < 2 {
+		return time.Time{}, fmt.Errorf("invalid values (len): [%s]", values)
+	}
+	timeStr := values[1]
+	if len(timeStr) != len("yy/MM/dd,hh:mm:ss+zz") {
+		return time.Time{}, fmt.Errorf("invalid time string: %s", timeStr)
+	}
+	// Convert time zone
+	timeZoneStr := timeStr[len(timeStr)-2:]
+	timeZone, err := strconv.Atoi(timeZoneStr)
+	if err != nil {
+		return time.Time{}, fmt.Errorf("parse time zone: %w", err)
+	}
+	timeStr = fmt.Sprintf("%s%02d%02d", timeStr[:len(timeStr)-2], timeZone/4, timeZone%4)
+	// Parse to golang time
+	return time.Parse(timeLayout, timeStr)
+}
+
 func (m *modem) PowerOn() error {
 	m.onOffPin.PowerOn() // DEBUG do not want to wait 30 seconds
 	return nil
@@ -205,24 +246,38 @@ func (m *modem) At() at.Port {
 	return m.port
 }
 
+func (m *modem) Ic() internet.Conn {
+	return m.ic
+}
+
 func (m *modem) Close() error { // I can't return error so I log it
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
+	// Close submodules
+	if m.sms != nil {
 		if err := m.sms.Close(); err != nil {
 			m.logger.Printf("\x1b[38;2;255;0;0mclose sms error: %s\x1b[38;2;255;255;255m\n", err.Error())
 		}
-
-	if err := m.port.Close(); err != nil {
-		m.logger.Printf("\x1b[38;2;255;0;0mclose serial port error: %s\x1b[38;2;255;255;255m\n", err.Error())
 	}
+	if m.ic != nil {
+		if err := m.ic.Close(); err != nil {
+			m.logger.Printf("\x1b[38;2;255;0;0mclose internet error: %s\x1b[38;2;255;255;255m\n", err.Error())
+		}
+	}
+	if m.gps != nil {
+		if err := m.gps.Close(); err != nil {
+			m.logger.Printf("\x1b[38;2;255;0;0mclose gps error: %s\x1b[38;2;255;255;255m\n", err.Error())
+		}
+	}
+
+	// Close gpio and serial
 	if err := m.onOffPin.Close(); err != nil {
 		m.logger.Printf("\x1b[38;2;255;0;0mclose gpio pin error: %s\x1b[38;2;255;255;255m\n", err.Error())
 	}
-	if err := m.ic.Close(); err != nil {
+	if err := m.port.Close(); err != nil {
-		m.logger.Printf("\x1b[38;2;255;0;0mclose internet connection error: %s\x1b[38;2;255;255;255m\n", err.Error())
+		m.logger.Printf("\x1b[38;2;255;0;0mclose serial port error: %s\x1b[38;2;255;255;255m\n", err.Error())
 	}
-
 	return nil
 }
 
@@ -381,34 +436,6 @@ func (m *modem) checkPort(portName string) (outErr error) {
 	return nil
 }
 
-func (m *modem) searchPort(isSoft bool) error {
-	// Get ports
-	ports := []string{"ttyUSB1", "ttyUSB2", "ttyUSB3"}
-	if !isSoft {
-		ps, err := getTtyDevices()
-		if err != nil {
-			fmt.Errorf("get serial devices: %w", err)
-		}
-		ports = ps
-	}
-
-	// Check ports
-SearchLoop:
-	for _, p := range ports {
-		m.logger.Printf("Checking port %s ...\n", p)
-
-		if err := m.checkPort("/dev/" + p); err != nil {
-			m.logger.Printf("\x1b[38;2;255;0;0mCheck failed: %s\x1b[38;2;255;255;255m\n", err.Error())
-			continue SearchLoop
-		}
-
-		m.logger.Print("Found modem on port: ", p)
-		m.port = at.New(m.logger, "/dev/"+p, m.baudrate)
-		return nil
-	}
-	return nil
-}
-
 func (m *modem) ping() error {
 	resp, err := m.port.Send("AT")
 	if err != nil {
@@ -420,7 +447,36 @@ func (m *modem) ping() error {
 	return nil
 }
 
-func getTtyDevices() ([]string, error) {
+func (m *modem) searchPort(isSoft bool) ([]string, error) {
+	// Get ports
+	ports, err := getTtyPorts(isSoft)
+	if err != nil {
+		fmt.Errorf("get devices: %w", err)
+	}
+	// Check ports
+	return m.getAtPorts(ports)
+}
+
+func (m *modem) getAtPorts(ports []string) ([]string, error) {
+	outPorts := make([]string, 0)
+	for _, p := range ports {
+		m.logger.Printf("Checking port %s ...\n", p)
+
+		if err := m.checkPort("/dev/" + p); err != nil {
+			m.logger.Printf("\x1b[38;2;255;0;0mCheck failed: %s\x1b[38;2;255;255;255m\n", err.Error())
+			continue
+		}
+
+		m.logger.Print("Found AT port: ", p)
+		outPorts = append(outPorts, "/dev/"+p)
+	}
+	return outPorts, nil
+}
+
+func getTtyPorts(isSoft bool) ([]string, error) {
+	if isSoft {
+		return []string{"ttyUSB1", "ttyUSB2", "ttyUSB3"}, nil
+	}
 	// Get ports
 	/**/
 	out, err := exec.Command("ls", "--", "/dev/tty[!0-9]*").Output()

api/modem/sms/sms.go

@@ -41,14 +41,24 @@ func (d *dialer) Init() error {
 		return fmt.Errorf("check PIN: %w", err)
 	}
 	// Setup prefered message storage
-	if err := d.setupMsgSt(); err != nil {
+	// if err := d.setupMsgSt(); err != nil { // Does not use store now
-		d.logger.Printf("ERROR setup msg storage: %s\n", err.Error())
+	// 	d.logger.Printf("ERROR setup msg storage: %s\n", err.Error())
+	// }
+
+	// Set notifications into console
+	if resp, err := d.port.Send("AT+CNMI=2,2"); err != nil || !resp.Check() {
+		if err != nil {
+			return err
 		}
+		return fmt.Errorf("CNMI= error response: %s", resp.String())
+	}
+
 	// Check number
 	if resp, err := d.port.Send("AT+CNUM"); err != nil || !resp.Check() {
 		if err != nil {
-			return fmt.Errorf("AT+CNUM request ")
+			return err
 		}
+		return fmt.Errorf("CNUM error response: %s", resp.String())
 	}
 	return nil
 }

main.go

@@ -9,7 +9,6 @@ import (
 	"time"
 
 	"gitea.unprism.ru/KRBL/sim-modem/api/modem"
-	"gitea.unprism.ru/KRBL/sim-modem/api/modem/at"
 )
 
 func main() {
@@ -17,6 +16,11 @@ func main() {
 
 	ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer cancel()
+	// Just for logs
+	go func(ctx context.Context) {
+		<-ctx.Done()
+		log.Println("GOT INTERUPT SIGNAL")
+	}(ctx)
 
 	if err := mainE(ctx); err != nil {
 		log.Println("MAIN finished with error:", err.Error())
@@ -29,25 +33,37 @@ func mainE(ctx context.Context) error {
 	m := modem.New(log.New(logger.Writer(), "modem : ", log.LstdFlags))
 
 	logger.Println("||||||||||||||||| INIT |||||||||||||||")
+initLoop:
+	for {
+		select {
+		case <-ctx.Done():
+			logger.Println("Break init loop")
+			return nil
+		default:
 			if err := m.Init(); err != nil {
 				logger.Println("Init ended with error:", err.Error())
-		logger.Println("Try to turn on")
+				// logger.Println("Turn on...")
-		if err := m.PowerOn(); err != nil {
+				// if err := m.PowerOn(); err != nil {
-			return err
+				// 	logger.Println("Turn on error:", err.Error())
+				// }
+				continue initLoop
 			}
-		logger.Println("Reinit")
+			break initLoop
-		if err := m.Init(); err != nil {
-			return err
 		}
 	}
 	if !m.IsConnected() {
-		logger.Println("AAAAAAAAAAAAAAA Modem is not connected")
+		logger.Println("Modem is not connected")
 		return nil
 	}
+	defer func() {
+		logger.Println("||||||||||||||||| CLOSE |||||||||||||||")
+		m.Close()
+	}()
 
-	// logger.Println("||||||||||||||||| GET INFO |||||||||||||||||")
+	// Connect to internet
-	// logger.Println(m.Update())
+	// if err := m.Ic().Connect(); err != nil {
-	// logger.Printf("DATA: %+v\n", m.GetData())
+	// 	return fmt.Errorf("connect to internet: %w", err)
+	// }
 
 	logger.Println("||||||||||||||||| SMS |||||||||||||||||")
 	Cmd := func(cmd string) {
@@ -56,13 +72,6 @@ func mainE(ctx context.Context) error {
 	}
 	_ = Cmd
 
-	var resp at.Resp
-	var err error
-	buf := make([]byte, 256)
-	_ = resp
-	_ = err
-	_ = buf
-
 	// Select ME PMS
 	// logger.Println("SEND SMS")
 	// logger.Println(m.Sms().Send("+79218937173", "CGSG forever!!!"))
@@ -78,17 +87,30 @@ func mainE(ctx context.Context) error {
 	// Cmd("AT+CPSI?")
 	// resp, err = m.At().Send("AT+CNMI=2,2")
 	for {
-
+		select {
+		case <-ctx.Done():
+			logger.Println("Break main loop")
+			return nil
+		default:
+			// Cmd("AT+CPSI?")
+			// Cmd("AT+CSQ")
+			// Cmd("AT+CCLK?")
+			// logger.Println(m.Gps().GetStatus())
+			// m.Update()
+			// st, _ := m.Gps().GetStatus()
+			// logger.Printf("GPS STATUS: %+v", st)
+			// logger.Printf("GPS DATA: %+v", m.GetData())
+			logger.Println(m.GetTime())
+			time.Sleep(2 * time.Second)
+		}
 		// Cmd("AT+CSQ")
 		// Cmd("AT+COPS?")
 
-		Cmd("AT+CPSI?")
 		// if err := m.CheckSignal(); err != nil {
 		// 	logger.Println(err)
 		// } else {
 		// 	logger.Println("AAAAAAAAAAA THERE IS SIGNAL")
 		// }
-		time.Sleep(500 * time.Millisecond)
 		// readLen, err := m.At().SerialPort().Read(buf)
 		// if err != nil {
 		// 	return err