1 00:00:02,320 --> 00:00:08,410 Now that we are done with the first part of our code, let's move on and create a method so that we 2 00:00:08,410 --> 00:00:10,720 can connect to Wi-Fi networks easily. 3 00:00:11,980 --> 00:00:17,530 Let's limit the was set up by five. 4 00:00:22,940 --> 00:00:23,420 Now 5 00:00:26,240 --> 00:00:37,160 inside this method, just a delay of 20 milliseconds and serial the brand new line, 6 00:00:40,520 --> 00:00:45,710 let's bring something to tell you, though, that we are connecting to I from the that motor. 7 00:00:59,950 --> 00:01:01,360 OK, now. 8 00:01:03,170 --> 00:01:04,850 It's quite dynamic with the I fight. 9 00:01:09,900 --> 00:01:23,750 All right, it's a I thought that why I don't begin to start connecting to this, why is this I.D. and 10 00:01:23,750 --> 00:01:30,460 passport so it would take to qualify this ID and password? 11 00:01:30,470 --> 00:01:41,120 I will try to connect now, which are the line statement, if qualify 12 00:01:44,090 --> 00:01:44,960 the status. 13 00:01:48,150 --> 00:01:49,860 Is not connected, 14 00:01:54,270 --> 00:01:59,760 then we need to delay and try again. 15 00:02:09,190 --> 00:02:12,490 And while it's trying to connect, we need to train. 16 00:02:14,830 --> 00:02:16,210 OK, now. 17 00:02:18,780 --> 00:02:25,800 After this, after the wall, that wall keeps trying, we'll keep trying, connecting to the wife Typekit 18 00:02:25,800 --> 00:02:27,870 work, we need to add. 19 00:02:29,930 --> 00:02:33,710 Once it's connected, it will keep rolling this until it's connected. 20 00:02:34,280 --> 00:02:40,970 Now, once it's connected, we need to write Syria to the brand 21 00:02:43,580 --> 00:02:44,210 new line. 22 00:02:46,880 --> 00:02:47,840 No Wi-Fi 23 00:02:51,350 --> 00:02:52,400 is connected. 24 00:02:56,310 --> 00:02:58,530 And we can't even print the IP address. 25 00:03:14,340 --> 00:03:19,080 And to print it, we need to call a function called verify 26 00:03:21,870 --> 00:03:23,760 the local IP. 27 00:03:28,940 --> 00:03:35,390 This world will terror the IP address to our ISP, 32 bodies connected and will print it out on the 28 00:03:35,390 --> 00:03:35,960 sea that I'm on it. 29 00:03:36,320 --> 00:03:41,480 Now let's verify the code to make sure that everything is working just fine. 30 00:03:42,690 --> 00:03:43,070 OK. 31 00:03:45,060 --> 00:03:45,690 That's it. 32 00:03:46,280 --> 00:03:48,330 Now this is the first function. 33 00:03:49,050 --> 00:03:57,910 Now the second function is to reconnect, now void to connect. 34 00:04:02,070 --> 00:04:05,220 Now we will know until we are reconnected. 35 00:04:05,490 --> 00:04:08,260 So we'll add a wild statement. 36 00:04:09,660 --> 00:04:15,540 This is basically a function to make sure that we are connected to the NQT server. 37 00:04:15,780 --> 00:04:26,100 So while it's clear that connected 38 00:04:28,680 --> 00:04:31,260 is not true, we need to try. 39 00:04:35,350 --> 00:04:36,030 To reconnect. 40 00:04:37,490 --> 00:04:40,790 So let's try to the different. 41 00:04:44,820 --> 00:04:55,080 A typical thing to reconnect and your TV connection. 42 00:05:00,890 --> 00:05:04,730 OK, now the next line will be pliant. 43 00:05:08,790 --> 00:05:09,870 The publisher 44 00:05:14,610 --> 00:05:19,610 inside it will write out topic. 45 00:05:23,730 --> 00:05:24,190 That's right. 46 00:05:24,310 --> 00:05:26,630 Hello, world. 47 00:05:29,900 --> 00:05:36,740 Now, let's create a random client ID, string client I.D.. 48 00:05:39,630 --> 00:05:48,780 Let's call it, yes, be 32 clients, and you cannot do anything 49 00:05:51,420 --> 00:05:57,960 after that, we kind of had client idea. 50 00:06:02,510 --> 00:06:05,690 B+ equal strength. 51 00:06:08,700 --> 00:06:11,940 And so this thing, we can add a random function. 52 00:06:16,380 --> 00:06:17,020 0X 53 00:06:19,770 --> 00:06:28,890 and for us now, we can make sure that takes over the time, and this will make sure that each side 54 00:06:28,890 --> 00:06:34,530 will have a new client ID that is unique because we are getting the value. 55 00:06:36,030 --> 00:06:43,260 And we are adding it to that previous value so we can remove this number and which Typekit will be, 56 00:06:43,260 --> 00:06:44,670 the idea will be this. 57 00:06:46,520 --> 00:06:51,860 Plus, the last thing that comes out from this line now. 58 00:06:54,220 --> 00:07:00,700 Let's attempt to connect, but if statement, then else. 59 00:07:02,680 --> 00:07:13,540 Let's start with that statement now inside that statement, we need to ask if a client that connects 60 00:07:14,140 --> 00:07:22,900 function, which usually takes that client I.D. to this one does. 61 00:07:25,510 --> 00:07:32,560 Now they're going to use a function called C String, which basically converts the contents of a string 62 00:07:32,650 --> 00:07:39,490 as a C style, which is the one that we need for this if statement and to use it, we just need to write 63 00:07:39,490 --> 00:07:43,240 c underscore STR. 64 00:07:45,580 --> 00:07:59,110 Then we can add MQ 3T user, which is basically the user name for the server in Q T password. 65 00:08:08,420 --> 00:08:09,590 OK, last 66 00:08:12,170 --> 00:08:20,420 now, as you can see, it takes the Kinect function, takes three things the client I.D., the user 67 00:08:21,020 --> 00:08:30,200 and the password after that, if that statement is true, we can can print 68 00:08:32,990 --> 00:08:35,180 the word connected and Barcelona later. 69 00:08:35,630 --> 00:08:37,010 So brand new line. 70 00:08:44,210 --> 00:08:52,370 OK, now, once connected, we can publish an announcement by writing Client not publish 71 00:08:56,210 --> 00:08:57,770 inside that we can write. 72 00:09:00,080 --> 00:09:00,800 I see. 73 00:09:03,820 --> 00:09:04,630 Results. 74 00:09:08,470 --> 00:09:10,810 And yes, we first saw. 75 00:09:13,020 --> 00:09:15,960 Now that announcement will be. 76 00:09:18,090 --> 00:09:20,640 Hello, world. 77 00:09:23,810 --> 00:09:34,160 Now, otherwise, if this condition didn't hit, we need to go to the health department and inside it. 78 00:09:34,730 --> 00:09:36,110 We need to right field. 79 00:09:45,350 --> 00:09:54,650 And we can also add another line that says are equal and leave us space. 80 00:09:56,780 --> 00:10:07,220 We will print out the Lion State, so serial the trend line the state. 81 00:10:12,750 --> 00:10:13,230 Now. 82 00:10:14,700 --> 00:10:17,030 Let's make sure that we have everything correct. 83 00:10:17,510 --> 00:10:18,420 Battleground. 84 00:10:22,310 --> 00:10:26,840 The state function, OK, now, try again in five seconds. 85 00:10:39,070 --> 00:10:42,790 And we can add a delay of five or six seconds 86 00:10:46,300 --> 00:10:47,980 to give it time to try again. 87 00:10:48,760 --> 00:10:49,090 OK. 88 00:10:52,610 --> 00:10:53,270 That's it. 89 00:10:53,540 --> 00:10:59,260 This is the reconnect function for the NQT server. 90 00:10:59,630 --> 00:11:02,600 Now we can't have this call at the end. 91 00:11:02,960 --> 00:11:06,170 But for now, this is everything that we need. 92 00:11:06,170 --> 00:11:12,030 First, we need to make sure that the client is not connected if it's not connected. 93 00:11:12,050 --> 00:11:18,260 We need to know that we are attempting to connect and we need to set a Client ID. 94 00:11:19,220 --> 00:11:27,950 Now, if we have seen that Client I.D. MQ, the user name and password, it will connect. 95 00:11:28,640 --> 00:11:32,450 If there is any problem, there is no internet connection or any other problem. 96 00:11:32,870 --> 00:11:40,580 It will print failed to print the state of this client and to print that you should try again in a few 97 00:11:40,580 --> 00:11:47,510 seconds and will add a delay to make sure that you are signed after a good amount of time. 98 00:11:49,520 --> 00:11:51,680 Now we did verify our code. 99 00:11:53,280 --> 00:11:59,330 We only get OK, an error that plant idea is not defined because we have c small. 100 00:12:00,140 --> 00:12:01,370 So let's make it the capital. 101 00:12:05,800 --> 00:12:06,170 OK. 102 00:12:06,250 --> 00:12:08,500 Then compiling everything is correct. 103 00:12:09,130 --> 00:12:16,000 And the next lesson, we are going to start the setup up and loop function coding, but that's it for 104 00:12:16,000 --> 00:12:16,330 now. 105 00:12:17,230 --> 00:12:22,930 If you have any question, please ask in the Q&A about this is Usha from educational engineering team.