1 00:00:10,000 --> 00:00:21,000 Today I will tell you how to connect node MCU with lab view using TCP protocol. 2 00:00:21,000 --> 00:00:30,000 So for that purpose, I just use a Arduino program or here, as you see, this is a node MCU sci fi 3 00:00:30,000 --> 00:00:31,000 server program. 4 00:00:32,000 --> 00:00:37,000 Right now my Arduino ID is 1.88.16. 5 00:00:37,000 --> 00:00:41,000 So over here you can find out this program. 6 00:00:41,000 --> 00:00:46,000 I also provide a link in my description. 7 00:00:46,000 --> 00:00:52,000 So over here in this, you have to first install Arduino. 8 00:00:52,000 --> 00:01:06,000 So from when you install Arduino after this that you have to install SB 8266 package to your Arduino 9 00:01:06,000 --> 00:01:13,000 toolbox because right now I program node MCU using Arduino IDE. 10 00:01:14,000 --> 00:01:20,000 So after installation node MCU, you have to just select your board. 11 00:01:20,000 --> 00:01:29,000 Right now my board is node MCU point nine, esp 12 e OC. 12 00:01:31,000 --> 00:01:32,000 Well module. 13 00:01:33,000 --> 00:01:38,000 So after this, you have to select your computer. 14 00:01:38,000 --> 00:01:44,000 Right now, my node MCU is connected to Comm six, as you see over here. 15 00:01:44,000 --> 00:01:53,000 So I'm just telling you a little bit about the code over here in this, you have to include your ESP 16 00:01:53,000 --> 00:01:56,000 8266 wi fi header file. 17 00:01:57,000 --> 00:02:01,000 Then you have to provide a server code. 18 00:02:01,000 --> 00:02:03,000 Right now it is 8000. 19 00:02:03,000 --> 00:02:10,000 Then you have to provide SSID or you can say your wi fi username. 20 00:02:10,000 --> 00:02:12,000 Right now my username is h.r. 21 00:02:12,000 --> 00:02:13,000 Three two. 22 00:02:14,000 --> 00:02:15,000 Are you on about this? 23 00:02:17,000 --> 00:02:20,000 Then you have to set the password. 24 00:02:20,000 --> 00:02:24,000 My password is an 880403. 25 00:02:25,000 --> 00:02:29,000 After that, the wi fi server create a port. 26 00:02:30,000 --> 00:02:33,000 So I just include two variables over here. 27 00:02:33,000 --> 00:02:40,000 First is integer input and another one is floating voltage. 28 00:02:41,000 --> 00:02:53,000 Right now I just connect a potentiometer with my node MCU and I want to get this potentiometer data 29 00:02:53,000 --> 00:02:54,000 or lab view. 30 00:02:54,000 --> 00:03:04,000 So first you have to connect, create a connection, or you have to create a server using node MCU. 31 00:03:04,000 --> 00:03:16,000 So over here this is the PIN Mode 16 output as it started output and using this on the serial com port 32 00:03:16,000 --> 00:03:22,000 or here you can see that wi fi is connected or not. 33 00:03:23,000 --> 00:03:24,000 I will show you. 34 00:03:24,000 --> 00:03:30,000 And over here, this is the program and the main program. 35 00:03:30,000 --> 00:03:33,000 Or you can say the working program is over here. 36 00:03:37,000 --> 00:03:45,000 So first after connection from the lab view, you have to write, stop or start. 37 00:03:45,000 --> 00:03:51,000 When you stop, it will print stop on the serial monitor. 38 00:03:51,000 --> 00:04:02,000 When you send a command start, it will read to A0 zero called off node MCU and over here is the formula. 39 00:04:02,000 --> 00:04:09,000 So right now I just download this code to my node MCU. 40 00:04:09,000 --> 00:04:10,000 It will take some time. 41 00:04:17,000 --> 00:04:19,000 Right now it is compiling. 42 00:04:22,000 --> 00:04:24,000 And as you see. 43 00:04:53,000 --> 00:04:53,000 Right. 44 00:04:57,000 --> 00:05:07,000 So as you see over here writing in the process, Blue Lady goes on off. 45 00:05:08,000 --> 00:05:16,000 And over here, this is a hard resetting y respin reset pin. 46 00:05:16,000 --> 00:05:21,000 When you press reset pin, you will get information about your connection. 47 00:05:21,000 --> 00:05:26,000 Right now over here, you have to set the board rate 115200. 48 00:05:27,000 --> 00:05:33,000 Then when I over here, this is a reset pin when I press it. 49 00:05:34,000 --> 00:05:39,000 As you see, my node MCU is creating a connection. 50 00:05:40,000 --> 00:05:49,000 So if I successfully connected and this is my IP address of node MCU and node MCU as a server roll started. 51 00:05:49,000 --> 00:06:00,000 Okay, so this is the connection part or you can say coding part for the node MCU. 52 00:06:00,000 --> 00:06:02,000 Now we go to lab view. 53 00:06:02,000 --> 00:06:06,000 So in the lab view, I just create a new V. 54 00:06:11,000 --> 00:06:20,000 So in the lab view I just go to data communication over here protocol we you just PCB protocol. 55 00:06:21,000 --> 00:06:28,000 So I just lock it in this TCP protocol, I just use TCP open. 56 00:06:29,000 --> 00:06:33,000 Then we have to write a signal. 57 00:06:33,000 --> 00:06:42,000 Let's say A and B, and in our program already A and B are specified. 58 00:06:42,000 --> 00:06:44,000 As you see over here. 59 00:06:45,000 --> 00:06:50,000 This is when A is there the client print blank. 60 00:06:50,000 --> 00:06:58,000 When B is there, it will print analog read and it will read the signal or potentiometer. 61 00:06:59,000 --> 00:07:07,000 So over here I just also read and I want to close it. 62 00:07:07,000 --> 00:07:12,000 So I just align all these, connect this. 63 00:07:16,000 --> 00:07:19,000 Connection ID in two out. 64 00:07:25,000 --> 00:07:30,000 And over here you have to create a common state. 65 00:07:30,000 --> 00:07:35,000 And I want to just use the IP address. 66 00:07:35,000 --> 00:07:39,000 So over here, no MCU, IP addresses this. 67 00:07:42,000 --> 00:07:44,000 So I just again, reset. 68 00:07:50,000 --> 00:07:53,000 So over here I got my IP address. 69 00:07:53,000 --> 00:07:57,000 1932.168.0.103. 70 00:07:57,000 --> 00:08:02,000 For my node MCU, I just put it. 71 00:08:03,000 --> 00:08:04,000 In this constant. 72 00:08:07,000 --> 00:08:15,000 So this is my IP address and I want to create a port and the port address is 8000. 73 00:08:16,000 --> 00:08:22,000 I just create a y loop for continuous reading the signal. 74 00:08:22,000 --> 00:08:24,000 Create a control to stop the reading. 75 00:08:25,000 --> 00:08:26,000 And over here, this is my data. 76 00:08:27,000 --> 00:08:37,000 So I just create a combo box over here, and I want to edit this combo box 77 00:08:40,000 --> 00:08:44,000 and I want to insert my two signals. 78 00:08:44,000 --> 00:08:50,000 Let's a first one and second one is B and then B is there. 79 00:08:51,000 --> 00:08:59,000 It will read the data from potentiometer to node MCU disconnected. 80 00:08:59,000 --> 00:09:12,000 And over here I just get the data and there is a bit how many bytes you want to read, bytes you want 81 00:09:12,000 --> 00:09:12,000 to read. 82 00:09:13,000 --> 00:09:15,000 And I also to. 83 00:09:17,000 --> 00:09:19,000 Simple error handler. 84 00:09:19,000 --> 00:09:22,000 Or just connect it to error handler. 85 00:09:23,000 --> 00:09:30,000 Just label it visible item label so that you can identify this. 86 00:09:31,000 --> 00:09:33,000 TCP Close Connections. 87 00:09:35,000 --> 00:09:36,000 TCP Read. 88 00:09:38,000 --> 00:09:39,000 TCP Write. 89 00:09:42,000 --> 00:09:45,000 DHCP open channel control. 90 00:09:45,000 --> 00:09:50,000 You will minimize minimize as you see here. 91 00:09:52,000 --> 00:09:55,000 So I just close this or reduce the space. 92 00:09:58,000 --> 00:10:02,000 So over here I just get the output. 93 00:10:02,000 --> 00:10:06,000 Connect the potentiometer to my node MCU. 94 00:10:06,000 --> 00:10:07,000 Over here. 95 00:10:07,000 --> 00:10:09,000 This is my potentiometer. 96 00:10:12,000 --> 00:10:14,000 As you see, this is my potentiometer. 97 00:10:14,000 --> 00:10:18,000 And in this potentiometer, I have three lives. 98 00:10:19,000 --> 00:10:24,000 I just connect higher end to 3.3 volt. 99 00:10:24,000 --> 00:10:32,000 So this green one is my 3.3, and this new one is my ground. 100 00:10:34,000 --> 00:10:35,000 I just connected. 101 00:10:35,000 --> 00:10:36,000 And my third one. 102 00:10:37,000 --> 00:10:39,000 The third one is my signal. 103 00:10:41,000 --> 00:10:45,000 So for acquisition voltage. 104 00:10:46,000 --> 00:10:48,000 So I just connected to a zero. 105 00:10:49,000 --> 00:10:51,000 So my connections are ready. 106 00:10:52,000 --> 00:10:52,000 And you see. 107 00:10:59,000 --> 00:11:05,000 So now green one is my blue one. 108 00:11:05,000 --> 00:11:07,000 Or you can say purple is my. 109 00:11:07,000 --> 00:11:10,000 This one is my crown and red one is my signal. 110 00:11:11,000 --> 00:11:14,000 It will read from this potentiometer. 111 00:11:15,000 --> 00:11:17,000 So my connections are very. 112 00:11:17,000 --> 00:11:24,000 And now I want to set a particular value default, let's say a great operation. 113 00:11:24,000 --> 00:11:25,000 Make it default. 114 00:11:26,000 --> 00:11:42,000 So right now, when I hit on the run button, my data or you can say a will goes to the node MCU and 115 00:11:42,000 --> 00:11:46,000 I also check it on my. 116 00:11:52,000 --> 00:12:00,000 See the monitor as you see right now Lloyd goes blinking a is. 117 00:12:03,000 --> 00:12:09,000 Over here on the serial monitor I check a is there so I just minimize it. 118 00:12:09,000 --> 00:12:15,000 So when I send a B over here, I got the data from the potentiometer. 119 00:12:15,000 --> 00:12:18,000 The maximum value is 3.12. 120 00:12:18,000 --> 00:12:24,000 So I just increase or decrease right now I'm decreasing, as you see. 121 00:12:26,000 --> 00:12:27,000 I will read the data. 122 00:12:29,000 --> 00:12:34,000 Right now my notebook is connected to my laptop. 123 00:12:34,000 --> 00:12:38,000 I also disconnected and I just connect the. 124 00:12:42,000 --> 00:12:43,000 My power bank with it. 125 00:12:43,000 --> 00:12:51,000 So maximum value is 3.3 as node MCU will provide only 3.3 port maximum. 126 00:12:51,000 --> 00:12:53,000 So I just stop it. 127 00:12:54,000 --> 00:12:58,000 So over here in the serial monitor, you can also check it. 128 00:12:59,000 --> 00:13:02,000 So when a is there, it goes here. 129 00:13:02,000 --> 00:13:08,000 So in this I want to just convert the string to numeric. 130 00:13:09,000 --> 00:13:17,000 So just go to string control number, chromosome or here fraction string to number converter. 131 00:13:17,000 --> 00:13:18,000 I just use it. 132 00:13:19,000 --> 00:13:22,000 So this is my small string. 133 00:13:23,000 --> 00:13:26,000 And over here this is my number value. 134 00:13:26,000 --> 00:13:27,000 So I just put 135 00:13:30,000 --> 00:13:35,000 stylised numeric meter 136 00:13:38,000 --> 00:13:42,000 and its range is maximum 3.54. 137 00:13:43,000 --> 00:13:44,000 Okay. 138 00:13:44,000 --> 00:13:49,000 And also, you can use a unit display over here. 139 00:13:55,000 --> 00:13:58,000 Several items they still display. 140 00:13:58,000 --> 00:14:01,000 Okay, so I just connect this. 141 00:14:04,000 --> 00:14:08,000 Control, you will minimize my space. 142 00:14:08,000 --> 00:14:17,000 So when I again hit on run button so first I send a in that case data out is blank right now without 143 00:14:17,000 --> 00:14:18,000 is blank. 144 00:14:19,000 --> 00:14:24,000 So when I send B as you see, maximum value is there. 145 00:14:24,000 --> 00:14:35,000 And right now maximum value is there when I decrease or move the potential return of the value. 146 00:14:35,000 --> 00:14:48,000 So using this you can use or you can interface node MCU with your using this, you can interface node 147 00:14:48,000 --> 00:14:48,000 MCU. 148 00:14:50,000 --> 00:14:52,000 Okay, thank you.