1 00:00:00,510 --> 00:00:07,590 Now that we are done with the LED blinking example, let's move on to the touch sensor example. 2 00:00:10,070 --> 00:00:15,410 This is a new cool feature that's available on the ESB 32 balls. 3 00:00:15,980 --> 00:00:20,660 VSP 32 has internal alternate internal capacitive touch sensors. 4 00:00:21,050 --> 00:00:24,980 We already explained or showed these pins. 5 00:00:29,720 --> 00:00:31,820 We already showed. 6 00:00:35,830 --> 00:00:41,170 We already explain this bends and the wiring layout of the speaker to listen. 7 00:00:41,740 --> 00:00:43,330 But let's talk about them again. 8 00:00:44,020 --> 00:00:52,570 Now these 10 antenna capacitive touch sensors can be used as buttons, and there are numbers from general 9 00:00:52,570 --> 00:01:05,379 purpose input output number four zero two, 12, 13, 14, 15, 23 or 32, 33 and 27. 10 00:01:06,250 --> 00:01:07,390 These are the pins. 11 00:01:07,390 --> 00:01:09,600 I will show you the beans. 12 00:01:10,010 --> 00:01:10,900 No number one minute. 13 00:01:10,990 --> 00:01:11,380 Okay. 14 00:01:14,260 --> 00:01:23,020 OK, this is it, and you can refer to the wiring layout or the pin diagram lesson where you can see 15 00:01:23,560 --> 00:01:24,340 these pins. 16 00:01:24,910 --> 00:01:34,760 These are thin internal capacitive touch sensors that you can easily use in order to read these pins. 17 00:01:34,780 --> 00:01:43,750 What you need to do is use the function, touch read, and this function will take only one variable, 18 00:01:43,750 --> 00:01:53,110 which is basically this is the function that usually takes one variable, which is the pin number, 19 00:01:53,710 --> 00:01:57,550 the symbol, number four, number five, and so on. 20 00:01:58,710 --> 00:01:59,160 So. 21 00:02:00,840 --> 00:02:06,360 In order to use this function first, we need to assign a variable. 22 00:02:08,070 --> 00:02:12,960 Now we can't right and value. 23 00:02:19,470 --> 00:02:21,030 And I touch Reid 24 00:02:24,630 --> 00:02:31,350 inside the twilight, and no, we can't use the all-purpose input-output for which basically the first 25 00:02:31,350 --> 00:02:33,060 touch sensor t0. 26 00:02:33,870 --> 00:02:42,900 And now let's create a code where we read the state of this touch sensor and submit on the serial monitor 27 00:02:43,560 --> 00:02:44,310 to do this. 28 00:02:44,370 --> 00:02:46,380 First, you need to. 29 00:02:47,620 --> 00:02:53,860 Initialize the communication and the setup method, as you can see between these two curly parentheses. 30 00:02:54,730 --> 00:03:00,880 So light serial dot begin 31 00:03:03,730 --> 00:03:09,950 and use any Mod. We can use 150000 200s. 32 00:03:10,360 --> 00:03:14,170 And let's add some delay to help it 33 00:03:17,260 --> 00:03:18,040 stabilize. 34 00:03:22,760 --> 00:03:24,920 One second now. 35 00:03:26,050 --> 00:03:27,520 Let's try this nonsense. 36 00:03:27,640 --> 00:03:29,710 Let's try cereal, dot, print. 37 00:03:37,250 --> 00:03:38,630 Yes, beef as a tool. 38 00:03:42,450 --> 00:03:43,010 Touch 39 00:03:48,060 --> 00:03:48,290 this. 40 00:03:49,890 --> 00:03:59,760 Now we have to set the pin moment for us output, we want to use the LEDs as an indicator for the touch 41 00:03:59,760 --> 00:04:02,580 straight or touch sensor state. 42 00:04:03,390 --> 00:04:10,980 So we have pin number two, which has the lid and we need it as output. 43 00:04:13,680 --> 00:04:19,860 We also need to write a value and make sure that it equals zero. 44 00:04:21,240 --> 00:04:24,570 We want to make sure that the lid is off. 45 00:04:26,910 --> 00:04:30,540 To do so, we need to write that pin number and light law. 46 00:04:31,470 --> 00:04:40,260 Using this line, we are making sure that when the yes people starts, it will make sure that that it 47 00:04:40,260 --> 00:04:40,770 is off. 48 00:04:41,250 --> 00:04:46,290 It will only turn on if there is touch all of the touch sensors on. 49 00:04:48,060 --> 00:04:55,740 OK, now what we need to do next is read the value Dutch read using Dutch read and stored up inside 50 00:04:55,740 --> 00:04:56,310 the value. 51 00:04:57,150 --> 00:05:06,030 Now we want to ask our question if the Dutch value is above or below a certain value, we can turn on 52 00:05:06,030 --> 00:05:06,870 or off than it. 53 00:05:09,350 --> 00:05:15,200 But before we do that, we can't simply print the touch, read all the value that we get from touch 54 00:05:15,260 --> 00:05:19,310 speed sensor, which is the capacitive touch sensor on the serial monitor. 55 00:05:19,460 --> 00:05:30,250 So let's get let's do this serial dot print online and inside it. 56 00:05:30,260 --> 00:05:31,910 We need to place the value. 57 00:05:33,530 --> 00:05:38,750 After that, we can add a delay on second delay. 58 00:05:40,950 --> 00:05:42,900 Now, let's try combining our code. 59 00:05:45,200 --> 00:05:47,270 Let's store it inside. 60 00:05:51,450 --> 00:05:52,650 Our coding folder. 61 00:05:52,800 --> 00:05:53,670 It's called a touch 62 00:05:56,340 --> 00:05:57,330 screen, for example. 63 00:06:04,960 --> 00:06:06,270 OK, let's remove these. 64 00:06:10,150 --> 00:06:11,650 Now, let's combine a game. 65 00:06:23,190 --> 00:06:23,670 OK. 66 00:06:23,820 --> 00:06:24,900 Duncan compiling. 67 00:06:25,020 --> 00:06:28,620 Now let's upload the code to our ISP board. 68 00:06:48,250 --> 00:06:56,290 By the way, you can use number four, which is the pin number, or you can use t0 do you 182 up to 69 00:06:56,290 --> 00:07:02,680 210 because we already mentioned that we have, uh, 10 touch sensors. 70 00:07:04,390 --> 00:07:06,490 Now let's open up the serial monitor. 71 00:07:08,000 --> 00:07:08,230 OK. 72 00:07:08,340 --> 00:07:12,800 As you can see, that much value here is hundreds. 73 00:07:14,550 --> 00:07:19,800 And seven, and if we did touch it, it will change. 74 00:07:20,070 --> 00:07:20,970 Let me do that. 75 00:07:22,630 --> 00:07:29,080 OK, now, as you can see, we have seventy four, thirty seven, 71, 70. 76 00:07:29,110 --> 00:07:30,580 Now let me touch the pin. 77 00:07:33,970 --> 00:07:39,910 As you can see, once I touched upon the values of goal below, then. 78 00:07:41,860 --> 00:07:43,060 And when I leave it. 79 00:07:44,310 --> 00:07:47,520 Goes again up to seventy seven to two. 80 00:07:48,090 --> 00:07:52,230 So I think that we have a consistent value here. 81 00:07:52,260 --> 00:07:56,340 If the value is below 50 means that I'm touching the pin. 82 00:07:56,700 --> 00:08:00,300 If it is above 50 means that I'm not touching the pin. 83 00:08:00,420 --> 00:08:02,850 We can adjust our code accordingly. 84 00:08:02,970 --> 00:08:04,050 Now let's do that. 85 00:08:06,020 --> 00:08:07,880 Now let's go here. 86 00:08:08,000 --> 00:08:20,780 And if statement now in that statement, we are going to ask a question, the value is above all equal 87 00:08:21,680 --> 00:08:22,250 50. 88 00:08:24,410 --> 00:08:26,330 And it's more of this side of this. 89 00:08:27,560 --> 00:08:32,450 So super he is now in that case, we need to turn on the red. 90 00:08:36,789 --> 00:08:38,500 And add a delay. 91 00:08:41,309 --> 00:08:41,820 Ms. 92 00:08:46,850 --> 00:08:48,590 If the value is. 93 00:08:50,730 --> 00:08:51,690 Below 50, 94 00:08:54,750 --> 00:08:59,130 we need to turn the lid off. 95 00:09:04,740 --> 00:09:06,990 OK, now let's verify our code. 96 00:09:13,460 --> 00:09:21,310 Oh, and let's print a sentence and say these two statements using the serial plant. 97 00:09:22,670 --> 00:09:27,110 So he is going to plant lid on. 98 00:09:32,350 --> 00:09:36,280 And here we going to try led off. 99 00:09:38,800 --> 00:09:40,380 Let's verify the call again. 100 00:09:51,360 --> 00:09:57,660 OK, now let's applaud, according to the SB 32 board again. 101 00:09:58,530 --> 00:10:00,360 The process takes some time. 102 00:10:05,270 --> 00:10:07,850 Now it's connecting to the board. 103 00:10:09,680 --> 00:10:11,540 Now it's writing the code. 104 00:10:11,920 --> 00:10:13,320 OK, done uploading. 105 00:10:13,340 --> 00:10:18,020 Now, if we open up the serial monitor, as you can see, the light is on. 106 00:10:18,860 --> 00:10:23,690 And if you take a look to your board, you can see that the lid is on. 107 00:10:25,420 --> 00:10:33,850 Now, let me touch the Touch Pen, as you can see, the value goes below 50 and the lid is off. 108 00:10:38,130 --> 00:10:38,730 That's it. 109 00:10:39,030 --> 00:10:46,800 This is how easily you can use and adjust the touch sensor inside the SB 32 board. 110 00:10:46,950 --> 00:10:53,430 It's built in so you don't have to connect any extra components. 111 00:10:53,670 --> 00:10:58,290 This is how amazing it is and how easy it is to deal with this ball. 112 00:10:58,710 --> 00:11:02,250 If you have any questions regarding this pen, I'm here to help you. 113 00:11:02,820 --> 00:11:03,910 Thanks for watching this lesson. 114 00:11:03,930 --> 00:11:06,360 This is us from educational engineering team.