WEBVTT 00:00.210 --> 00:07.770 And now let's write the code to know what was the button that was pressed on the infrared remote control. 00:08.430 --> 00:14.420 So here we are going to use the remote library that we have just installed before and you will see. 00:14.450 --> 00:16.590 So we're going to use digital PIN number five. 00:16.780 --> 00:26.000 The first one I'm going to do is define that's name AIPA and then receive in OK. 00:26.070 --> 00:28.170 And this is digital PIN number five. 00:28.180 --> 00:34.820 So make sure you use the correct pin if you have changed the pin to another one of these accordingly 00:34.890 --> 00:38.790 and know when we are not going to directly use this with digital red digital. 00:38.790 --> 00:39.210 Right. 00:39.630 --> 00:42.680 Whatever we're going to use directly the library. 00:42.690 --> 00:45.950 OK, which will handle the pin for us and to use the library. 00:45.960 --> 00:51.930 Well, I'm going to write some instructions and there is nothing or I need to understand here is just 00:52.260 --> 00:53.500 how to write the instructions. 00:53.520 --> 00:57.390 So this is just some syntax you have to write so you can use the library. 00:57.720 --> 01:06.760 OK, so I'm going first to do I receive like this so I r and R e c the lowercase. 01:07.240 --> 01:08.590 OK, so this is the type. 01:08.850 --> 01:14.640 This is the data type that is defined here in the library to create the object available that we can 01:14.640 --> 01:17.970 use to receive and process the signal. 01:18.280 --> 01:19.360 And I'm going to name it. 01:21.300 --> 01:28.980 So the same but all lowercase, OK, and here I need to give one parameter frontages, which is the 01:28.980 --> 01:33.080 number of the people like this with semicolon. 01:33.780 --> 01:43.010 And then I need to also decode and here with an underscore results like this, you can see terms around 01:43.020 --> 01:43.830 and let's go. 01:43.830 --> 01:46.980 That does nothing really to understand. 01:47.010 --> 01:48.590 That's just how you have to write. 01:48.930 --> 01:51.750 OK, in the setup, what I'm going to do in the set. 01:51.870 --> 01:57.360 So I'm going first to initialize cellular communication because we are going to print the results on 01:57.360 --> 01:57.820 the same. 01:57.840 --> 01:58.200 So. 02:00.140 --> 02:10.790 That's initial sale, and then I need to use the receiver that I've created here, I received that enabled 02:11.300 --> 02:18.720 I up in Ladies the I uppercase and then the eyes of a kitten in lowercase. 02:19.490 --> 02:22.730 This will enable the with the library. 02:22.880 --> 02:28.340 Again, why I use this because I have told you that it's better to use a meaningful name and this is 02:28.340 --> 02:34.670 actually not a real meaningful name is just because well this is actually the typical example you can 02:34.670 --> 02:35.660 find on the Internet. 02:35.660 --> 02:42.170 So if you need to actually get more examples or get more help from the Internet, it's also sometimes 02:42.170 --> 02:45.200 better to use the convention that everyone is using. 02:45.200 --> 02:46.610 So everyone is using that. 02:46.880 --> 02:49.730 I'm going to use that as well for this library. 02:50.090 --> 02:58.270 And individual books are not the same and so is initialized with the three lines here in the loop. 02:58.280 --> 03:10.820 I'm going to do if I'm going to take this, if I receive that decode and then I need to give so ampersand 03:11.690 --> 03:12.230 results. 03:14.690 --> 03:17.460 So this is a complaisant out of the scope of this schools. 03:17.480 --> 03:21.350 But basically I give the reference to the results structure here. 03:21.710 --> 03:24.350 You just need to know that you have to write this code like this. 03:24.680 --> 03:29.970 And this is really similar to when we did, for example, if the label. 03:29.990 --> 03:37.670 OK, this will just tell you if there are some results, if you can decode some results from DICENZO 03:37.880 --> 03:41.660 and it will put the result inside the results variable that we have here. 03:42.080 --> 03:47.450 So then what you can do is so let's do some that print and then get the results. 03:47.450 --> 03:55.280 You can do results that value, OK, and this time No Ambersons and we do this. 03:55.520 --> 03:59.390 And one thing that is important is after you have used decode. 03:59.390 --> 04:03.770 So if you can do that here or after the sale, the printer doesn't matter. 04:04.130 --> 04:05.270 You have to do so. 04:05.630 --> 04:06.380 Do this again. 04:06.380 --> 04:08.710 I'll receive that regime. 04:09.680 --> 04:15.590 OK, whenever you decode the results, you have to resume after that so you can will continue for the 04:15.590 --> 04:16.490 next rate. 04:16.880 --> 04:19.420 And let's run that program. 04:19.430 --> 04:20.930 OK, let's upload. 04:23.200 --> 04:30.910 And don't go blowing, so I'm going to open the sale monitor, OK, which should not contain anything 04:30.910 --> 04:35.940 now and I'm going to take the remote control over here and I'm just going to press on no. 04:35.990 --> 04:37.360 So let's say No. 04:37.360 --> 04:37.790 One. 04:38.430 --> 04:41.420 OK, and you can see here we have the red ality. 04:41.920 --> 04:48.370 That is whenever I send some data, whenever I press a button, you can see on my sensor I have the 04:48.610 --> 04:51.580 ability to just tell that I have received something. 04:51.580 --> 04:57.070 So maybe you will have that or not in your secret and you can see in the monitor. 04:57.400 --> 04:59.320 So let's say press one again. 05:00.820 --> 05:04.720 I have some number, rather big number. 05:04.930 --> 05:11.500 If I keep pressing, I have a different number and I press to press one, two, three. 05:11.500 --> 05:15.830 For example, I press the button plus the volume minus. 05:15.880 --> 05:21.890 OK, you can see for each different button I have different values. 05:21.950 --> 05:22.270 OK. 05:23.280 --> 05:29.430 So if you have the results like this, this means that it's working for you and you also may not have 05:29.430 --> 05:31.350 the same values as me, OK? 05:31.530 --> 05:33.650 Each controller will send different numbers. 05:33.660 --> 05:35.310 I'm going to explain that later. 05:35.850 --> 05:38.600 So here we have some big numbers. 05:38.610 --> 05:45.840 What I'm going to do, instead of just printing the results like that, I'm going to add X like this 05:45.840 --> 05:48.490 in uppercase and this should turn blue. 05:49.230 --> 05:49.810 What is that? 05:49.860 --> 05:56.490 Basically, we sell the print and then I'm going to be able to print either the number like this, print 05:56.490 --> 05:58.590 the number in hexadecimal. 05:59.100 --> 06:01.040 So hexadecimal to make it simpler. 06:01.050 --> 06:03.300 It's just another way to represent the number. 06:03.540 --> 06:06.960 OK, so basically you have different ways of representing number. 06:06.970 --> 06:13.820 For example, binary binary is just zero or one in the decimal system that we all know. 06:14.040 --> 06:17.730 We have numbers from zero to nine in the habit of this. 06:18.030 --> 06:26.970 Well, the number goes from zero to nine and then you have A, B, C, D, E, and so you have 16 numbers 06:27.240 --> 06:30.480 and ABCDE and F our numbers after nine. 06:30.510 --> 06:37.320 OK, so basically you will have that number or representation with stuff between zero and nine and eight 06:37.320 --> 06:37.860 to F. 06:38.340 --> 06:41.240 So let's upload the code again. 06:42.550 --> 06:47.380 And this is actually will be more readable and let's say a monitor. 06:47.450 --> 06:53.290 OK, I'm going to press zero again and I have the exact decimal number here. 06:53.470 --> 06:58.820 OK, we've f f and you can see eye to eye by three, I press nine. 06:59.050 --> 07:02.500 We have different numbers here in hexadecimal. 07:02.860 --> 07:10.870 OK, I can press any button like to play button to go first button fastforward first Buckwald etc.. 07:11.140 --> 07:16.120 And if I keep pressing on the button, let's say keep pressing on any button you can see then I have 07:16.390 --> 07:17.650 a lot of F's. 07:18.020 --> 07:24.880 OK, so whenever you press the button, once you have one hit number, whenever you keep pressing on 07:24.880 --> 07:27.880 the button, you have F F F. 07:28.030 --> 07:35.110 So it means that you have pressed on the same button as before continuously and be careful because the 07:35.500 --> 07:37.470 remote controller can be quite sensitive. 07:37.660 --> 07:40.020 So sometimes you will press on the button twice. 07:40.030 --> 07:44.290 OK, and again, this is because this is probably not the best quality ever. 07:44.770 --> 07:46.840 So make sure that you just press once on the. 07:48.560 --> 07:55.340 Once quick and sometimes when you press the button, so if I press too, I know that, OK, press to 07:55.340 --> 08:03.560 multiple times, I know that this is the number four to OK and sometimes so it's not happening here. 08:03.560 --> 08:11.000 But for other numbers, you may have some garbage data other than these are fair, but that's not a 08:11.000 --> 08:14.870 problem because later on we are going to be able to tell exactly when we have this. 08:15.140 --> 08:18.650 This is number two, for example, or when we have this. 08:20.060 --> 08:25.400 OK, you can see I have some weird data here, for example, this is weird, but when we have this, 08:25.400 --> 08:26.890 we know it's the play button. 08:26.900 --> 08:29.510 So if we have this, we are going to ignore that value. 08:30.110 --> 08:30.560 All right. 08:30.560 --> 08:36.770 So now you are able to decode the signal you got from the infrared sensor with this code and you can 08:36.770 --> 08:39.780 get each different button that you press. 08:39.890 --> 08:41.800 You will get a different value here. 08:42.140 --> 08:45.890 So each button of your remote controller will give you a different value. 08:46.070 --> 08:49.360 And also each different controller may give you different values. 08:49.360 --> 08:55.820 So the controller you have will probably give different values that the controller I have him again 08:55.820 --> 08:59.870 here is the same code that I've written for Tinker. 09:00.150 --> 09:03.560 So let's upload the code and you can see it should work. 09:05.060 --> 09:11.270 Using the two point six, put one of that library, OK, this is the thing called the long link to open 09:11.270 --> 09:17.850 the same monitor here and I'm going to press on the button, say zero to any button I can press. 09:17.900 --> 09:22.160 OK, you can see we give us a different number in Hexa. 09:22.190 --> 09:27.050 This if I keep pressing, you can see I have the f f f f f. 09:27.350 --> 09:27.710 All right. 09:27.720 --> 09:30.860 So it's the same thing as using the real controller. 09:31.190 --> 09:31.660 But here. 09:31.670 --> 09:33.080 No, this is important. 09:33.470 --> 09:34.130 Let's see here. 09:34.130 --> 09:37.730 I still have this monitor on my real secret. 09:37.880 --> 09:39.500 I'm going to press number zero. 09:40.830 --> 09:52.990 So number zero, I have F F 68, 97, the zero and have F the 30 S.F. So that's a different number. 09:53.030 --> 09:55.380 OK, that's the exact same controller. 09:55.410 --> 09:59.320 OK, this looks like the exact same controller, but we have different values. 09:59.360 --> 10:02.680 OK, because as I told you, each controller. 10:02.790 --> 10:04.930 OK, even the same ones. 10:04.980 --> 10:10.120 OK, in the same kids, each controller, different hardware can give you different values. 10:10.140 --> 10:15.090 So you are going to need to map the values depending on the controller you are actually using. 10:15.480 --> 10:15.810 All right. 10:15.820 --> 10:20.880 So that is how it works with the version two of the remote library.