1 00:00:07,000 --> 00:00:18,000 Today I will show you how to load the data from any sensor, any potentiometer, using any USB 6001 2 00:00:18,000 --> 00:00:19,000 in Matlab. 3 00:00:20,000 --> 00:00:24,000 For that purpose I just use a potentiometer. 4 00:00:24,000 --> 00:00:25,000 As you see over here. 5 00:00:25,000 --> 00:00:27,000 This is my potentiometer. 6 00:00:27,000 --> 00:00:28,000 I just connect it. 7 00:00:29,000 --> 00:00:34,000 It's one edge, one port to the VCC. 8 00:00:34,000 --> 00:00:35,000 That is five volt. 9 00:00:36,000 --> 00:00:39,000 Another one to the ground and middle one. 10 00:00:39,000 --> 00:00:45,000 This one is your white pin or middle wiper position. 11 00:00:45,000 --> 00:00:50,000 It is connected to the pin number two, analog pin number two. 12 00:00:50,000 --> 00:00:54,000 As you see over here, right now I'm using I two. 13 00:00:54,000 --> 00:00:56,000 So this is ground six. 14 00:00:56,000 --> 00:00:59,000 One is ground and middle one two. 15 00:01:00,000 --> 00:01:01,000 It is differentially connected. 16 00:01:01,000 --> 00:01:05,000 That's why I just ground six number pin also. 17 00:01:05,000 --> 00:01:10,000 And this one white one is connected to pin number 2I2. 18 00:01:10,000 --> 00:01:14,000 So now we just first grab the data. 19 00:01:14,000 --> 00:01:19,000 So we need to go to the Simulink. 20 00:01:19,000 --> 00:01:22,000 As you see over here I have the code. 21 00:01:22,000 --> 00:01:24,000 So let's I just. 22 00:01:26,000 --> 00:01:28,000 Do it from the start. 23 00:01:29,000 --> 00:01:35,000 Analog input I just require over here you just need to select the analog pin. 24 00:01:49,000 --> 00:01:59,000 As you see, I just need to select only a two because I'm using this pin over here. 25 00:01:59,000 --> 00:02:07,000 You can set the value also, but initially it is default as -10 to 10. 26 00:02:08,000 --> 00:02:09,000 Apply it. 27 00:02:10,000 --> 00:02:12,000 You can also set this value. 28 00:02:14,000 --> 00:02:20,000 Okay, now I just need a display to check the value. 29 00:02:24,000 --> 00:02:27,000 So just connect this display. 30 00:02:30,000 --> 00:02:31,000 I need a scope. 31 00:02:35,000 --> 00:02:48,000 It was late on a graph and to load these value I just need to add these all values to my workspace. 32 00:02:48,000 --> 00:03:00,000 I'm just using two workspace and from workspace I just take these values and plot these values. 33 00:03:00,000 --> 00:03:04,000 So I just hit on run button. 34 00:03:08,000 --> 00:03:11,000 You can check these values on scope also. 35 00:03:21,000 --> 00:03:27,000 As you see right now, value is 0.8 something. 36 00:03:28,000 --> 00:03:34,000 So now I just increase the value as you see. 37 00:03:36,000 --> 00:03:39,000 Now I just decrease the value. 38 00:03:42,000 --> 00:03:53,000 It is happening at different instants of time, as you see right now, increasing again, decreasing. 39 00:03:53,000 --> 00:03:56,000 Right now it is zero again I just. 40 00:03:59,000 --> 00:04:00,000 Move it. 41 00:04:01,000 --> 00:04:05,000 Now it is maximum 4.95. 42 00:04:06,000 --> 00:04:09,000 Again Decrease. 43 00:04:09,000 --> 00:04:10,000 Increase. 44 00:04:10,000 --> 00:04:11,000 Decrease. 45 00:04:11,000 --> 00:04:12,000 Increase. 46 00:04:12,000 --> 00:04:13,000 Decrease. 47 00:04:13,000 --> 00:04:14,000 Increase. 48 00:04:14,000 --> 00:04:16,000 So now I just stop it. 49 00:04:17,000 --> 00:04:19,000 Let's check. 50 00:04:21,000 --> 00:04:22,000 On workspace. 51 00:04:24,000 --> 00:04:26,000 So I just minimize this window. 52 00:04:26,000 --> 00:04:28,000 Close this window. 53 00:04:28,000 --> 00:04:31,000 And over here I have our data. 54 00:04:31,000 --> 00:04:34,000 Just select this. 55 00:04:35,000 --> 00:04:40,000 And total I have 5041 values. 56 00:04:40,000 --> 00:04:47,000 If you want to check different values, as you see we will just start from 0.8043. 57 00:04:47,000 --> 00:04:52,000 And over here you can find out different values. 58 00:04:52,000 --> 00:04:55,000 Right now again it is 0.84. 59 00:05:01,000 --> 00:05:07,000 For an instant now it is increasing when we just move. 60 00:05:07,000 --> 00:05:09,000 Let's see. 61 00:05:10,000 --> 00:05:16,000 Right now it is 91.2, 1.5, 2.9. 62 00:05:16,000 --> 00:05:20,000 So let's check the data pattern on the Excel. 63 00:05:20,000 --> 00:05:25,000 So I just select all data copy it control C. 64 00:05:26,000 --> 00:05:29,000 Now I just go to Excel. 65 00:05:29,000 --> 00:05:31,000 Create a new Excel. 66 00:05:32,000 --> 00:05:34,000 You can plot it on Matlab also. 67 00:05:35,000 --> 00:05:39,000 But right now I'm just showing you the data on Excel. 68 00:05:39,000 --> 00:05:41,000 So control V. 69 00:05:41,000 --> 00:05:45,000 Now total data is available over here. 70 00:05:46,000 --> 00:05:51,000 Let's check this data on a graph. 71 00:05:52,000 --> 00:05:55,000 Let's say I'm just using this graph. 72 00:05:56,000 --> 00:06:07,000 So over here you can find out different data data patterns related to different values. 73 00:06:07,000 --> 00:06:21,000 So over here this is if you want to just go with only this value, you can let's say if you want to 74 00:06:21,000 --> 00:06:23,000 select a particular part. 75 00:06:26,000 --> 00:06:27,000 Select over here. 76 00:06:28,000 --> 00:06:31,000 From here our values changing. 77 00:06:32,000 --> 00:06:35,000 Let's say I want to plot only this part. 78 00:06:36,000 --> 00:06:37,000 Insert. 79 00:06:39,000 --> 00:06:40,000 Data. 80 00:06:40,000 --> 00:06:45,000 As you see both the values, you can find out over here. 81 00:06:45,000 --> 00:06:49,000 This is the pattern how value changes. 82 00:06:49,000 --> 00:06:55,000 Okay, so this is all about how to load the data. 83 00:06:55,000 --> 00:06:57,000 Let's say I want to just. 84 00:06:59,000 --> 00:07:02,000 Select only this one row. 85 00:07:02,000 --> 00:07:04,000 Select this insert. 86 00:07:07,000 --> 00:07:12,000 Now you can find out how the value changes. 87 00:07:12,000 --> 00:07:13,000 Okay. 88 00:07:14,000 --> 00:07:20,000 And if you want to go with different pattern let's say this one. 89 00:07:21,000 --> 00:07:24,000 This is the main part over here. 90 00:07:24,000 --> 00:07:27,000 The how the potentiometer values changes. 91 00:07:27,000 --> 00:07:30,000 As you see it is nearly 0.8. 92 00:07:30,000 --> 00:07:36,000 Then it goes high then low high low high low. 93 00:07:36,000 --> 00:07:40,000 This is the pattern how we change the potentiometer value. 94 00:07:40,000 --> 00:07:47,000 And this is all about today's lecture how we load the data in the Matlab. 95 00:07:47,000 --> 00:07:48,000 Thank you.