WEBVTT 00:00.150 --> 00:06.720 This is the solution of the previous activity where you need to interact with the entities using the 00:06.960 --> 00:13.530 infrared, the remote controller and also print what you are going to do on the LCD screen. 00:13.800 --> 00:16.110 So we have quite a few things to do here. 00:16.530 --> 00:22.920 First, I'm going to initialize the infrared remote library to include. 00:24.060 --> 00:32.160 I remotely h I'm going to define the I r. 00:33.850 --> 00:40.780 Receive being digital pin number five for me, and I'm going to set up the sensor so I can make the 00:40.780 --> 00:44.070 mapping for the different buttons that I need. 00:44.530 --> 00:48.090 So I'm going to do the code for the visual three of the library. 00:48.580 --> 00:53.380 But if you use the version to please go back to one of the previous lessons so you can just get the 00:53.380 --> 00:58.900 code and also for the code that you can download and going to provide the solution for version two and 00:58.900 --> 00:59.920 also version three. 01:00.070 --> 01:05.560 So in the setup, I'm going to initialize sale because I will need sale to be able to match. 01:05.990 --> 01:11.910 OK, so later on I will be able to remove sailboard I need. 01:13.900 --> 01:15.820 All right, and then I. 01:17.790 --> 01:21.370 Or see her that begin with the pin. 01:23.140 --> 01:26.840 So that's it for the initialization now in the loop. 01:26.860 --> 01:31.330 I'm going to remove that, but keep the comments here now in the loop. 01:31.340 --> 01:32.380 I'm going to do if. 01:33.850 --> 01:36.550 I received a note. 01:37.520 --> 01:47.060 The code, so if we have received some data to do I receiver that resume very important, and then I'm 01:47.060 --> 01:57.710 going to say, let's Brent Allen with a receiver that decoded my data. 01:57.710 --> 02:02.300 That's coming back for Division three. 02:02.990 --> 02:03.560 All right. 02:03.560 --> 02:06.850 Let's make sure that the loop is closed here. 02:07.400 --> 02:14.150 Let's upload the program to the Arduino and let's see if it does activity 18. 02:18.350 --> 02:23.940 All right, don't applauding, I'm going to happen to say a monitor and I'm going to press what do. 02:24.150 --> 02:26.950 I'm going to need to use the button zero. 02:26.960 --> 02:30.830 So I press on zero multiple times to make sure I always tweet. 02:32.750 --> 02:46.010 Some can do it just after the same define button zero twenty two, and then I will need also the button 02:46.280 --> 02:53.300 one to button two, independent three and one, two and three. 02:54.910 --> 02:59.080 So I'm going to press on button one and get one. 03:01.010 --> 03:04.520 I'm going to press one button to get 24. 03:06.080 --> 03:12.140 So you can see sometimes I get zero because maybe I have pressed multiple times also next year, and 03:12.140 --> 03:18.200 that is that you correctly point to the sensor when you use the control 24. 03:19.720 --> 03:27.400 OK, I'm going to put twenty four here, twenty four, and now I press on with three, I get ninety 03:27.700 --> 03:28.120 four. 03:30.420 --> 03:31.050 All right. 03:33.080 --> 03:36.280 And I also need actually the. 03:37.480 --> 03:46.350 The AIPA button phone stop will just stop and this will be something to press on the button. 03:47.380 --> 03:49.900 This is for me, Seventy-one. 03:52.820 --> 03:53.360 All right. 03:54.530 --> 03:59.930 So that is the first step of the activity, mock debates now that I have done that, I can close the 03:59.930 --> 04:05.510 sale monitor, I can remove this, I actually can remove the sale of print anything that is going to 04:05.510 --> 04:06.560 come into it for now. 04:07.370 --> 04:14.450 And then what I can do is do my switch to go through all of the different buttons, OK, to check the 04:14.450 --> 04:21.620 command, all the data that I have received, if this can be mapped one of the button and then I'm going 04:21.620 --> 04:26.390 to do the action once I have correctly the button with the command. 04:26.540 --> 04:28.640 So let's do switch. 04:29.870 --> 04:37.940 And actually to be able to do switch, I need to create so into command, which will be equal to this. 04:38.630 --> 04:45.050 I are receiver that decoded data document and now I can remove that line. 04:47.320 --> 04:56.880 So quick comment, because Currentzis got braces and then you cave in to the case for the first one. 05:00.160 --> 05:08.490 And then it's the action that the zero and break, so I just redistrict you just. 05:09.820 --> 05:12.220 And then I have Kaze. 05:13.580 --> 05:15.140 We've but one. 05:17.480 --> 05:18.650 Let's do dakis. 05:20.220 --> 05:26.670 We've written to also Keys, we've written three. 05:29.240 --> 05:31.460 Case we've got. 05:34.010 --> 05:36.020 And don't forget the default. 05:37.260 --> 05:40.000 So here but one, I do. 05:41.270 --> 05:47.000 Action, but one and rich, same thing forward to. 05:48.780 --> 06:02.670 Action between the two and break the same thing forward and three, action, but three break and also 06:02.670 --> 06:03.270 for that one. 06:03.900 --> 06:07.170 So action button stop. 06:08.370 --> 06:08.800 Right. 06:10.230 --> 06:15.700 And the default is, let's say, handle default here. 06:16.740 --> 06:26.310 All right, so this way I can be pretty sure that the switch is correctly done and make sure that you 06:26.310 --> 06:27.590 double check on your problem. 06:27.960 --> 06:33.270 Let's just verify the code here, because I have added quite a lot of text. 06:34.140 --> 06:37.080 And you can see here I have also the same thing as before. 06:37.080 --> 06:38.640 I forgot the semicolon here. 06:43.610 --> 06:50.210 All right, don't complain, I'm not going to upload right now, but verify from time to time that the 06:50.210 --> 06:51.710 compilation is correct. 06:52.070 --> 06:58.910 So, for example, that I have not forgotten a semicolon are that have used Brace's in the wrong way. 06:59.420 --> 07:06.530 So now that we have a switch already, so we know which button we have pressed now we are ready to do 07:06.530 --> 07:07.180 the action. 07:07.520 --> 07:12.140 So what action we are going to do, we are going to toggle some entities. 07:12.740 --> 07:20.050 So now is the time is the next step is to handle the I'm going to use some define here. 07:20.840 --> 07:35.390 So any one thing let's do 12 define added to the 11 and define energy three been 10. 07:36.830 --> 07:39.260 So the other are the define here doesn't really matter. 07:39.740 --> 07:46.550 And then what I'm going to do here in the global scope, I'm going to create an array of VITAC because 07:46.550 --> 07:51.800 this is about the number of the energy and energy array. 07:51.920 --> 07:58.630 So this array will contain the different areas and let's put the size three. 07:59.030 --> 08:06.920 And actually instead of just writing three, I'm going to create and you define constant energy, the 08:06.920 --> 08:11.840 right size three so I can put a resize here. 08:11.960 --> 08:17.660 So we have already done that before and then I'm going to put a different. 08:19.620 --> 08:25.490 It is, and if you want any need to add any three. 08:27.930 --> 08:34.470 And because this line starts to be quite long, what I can do maybe is just go back to the new line 08:34.470 --> 08:39.460 after the equals sign unless I stop two or three times, OK? 08:40.390 --> 08:41.760 That is the same line. 08:42.420 --> 08:48.750 So I would be able to go through this area to go on the one, two and three with the index zero one 08:48.750 --> 08:49.250 and two. 08:49.660 --> 09:01.080 I know what I'm going to do is also create another array named eight state array with also the right 09:01.080 --> 09:01.560 size. 09:02.770 --> 09:04.090 And on this. 09:06.690 --> 09:13.200 All right, what I'm going to start is so the state of energy, because we are going to need to toggle 09:13.440 --> 09:14.090 the energy. 09:14.550 --> 09:22.770 So if I have stored in an area, I also need so that are teams of the 80s, I also need to know what 09:22.770 --> 09:26.380 are the states, what is the state for each state? 09:27.060 --> 09:35.820 So let's put low, low and low, which means that we will be able to go through both arrays and the 09:35.850 --> 09:43.740 index zero of this area will correspond to the pin number of the one and the index zero of that's the 09:43.750 --> 09:47.460 right way correspond of the state for the element. 09:48.440 --> 09:54.780 OK, so at the beginning, energy one with the state will be low and then energy two is located, three 09:54.780 --> 09:55.310 is low. 09:55.710 --> 09:57.900 So then we would be able to modify this. 09:58.140 --> 10:05.700 OK, if we want to modify the state for eighty two, we are going to modify this element of the story. 10:06.360 --> 10:06.750 All right. 10:06.780 --> 10:08.960 So now let's set up we've been mode. 10:09.510 --> 10:16.410 So in order to do that, I'm going to do void to create a new function in its energy mode. 10:17.610 --> 10:20.130 And in that I'm going to use a full loop. 10:20.470 --> 10:22.480 It iis zero. 10:22.500 --> 10:27.200 So we start at zero and then go until energy precise. 10:27.900 --> 10:29.260 So strictly lower. 10:30.780 --> 10:36.090 So we go from zero one to OK and then three we exit. 10:37.190 --> 10:38.320 I blusterous. 10:40.820 --> 10:49.120 And what we're going to do is, at any rate, we've I said we are going to take this and actually we 10:49.130 --> 10:54.190 are going to do most of the energy right. 10:54.260 --> 10:58.730 With the AI index to about. 11:00.880 --> 11:06.330 So first, we've zero here and then one key and then two here in three weeks. 11:07.240 --> 11:13.810 So this is very convenient because if we decide to add, let's say, five other and it is if we have 11:13.810 --> 11:15.790 eight, eight years, we don't need to change that. 11:16.330 --> 11:24.220 We just need to add a fine for one more here to put in the array but stage enduring and also define 11:24.220 --> 11:33.160 a new button, OK, to handle the new entities with the code, to actually handle the code, to initialize 11:33.160 --> 11:35.540 the mode and into toggle the state will be the same. 11:35.950 --> 11:45.470 So knowing the setup I can do in it entity not so entities are defined here and set up in the setup 11:46.120 --> 11:46.990 we've built. 11:47.530 --> 11:47.810 Great. 11:47.890 --> 11:49.080 So now what do we can do? 11:49.930 --> 11:54.020 Let's start with the command button zero. 11:54.430 --> 11:58.870 So here we want what do we want to do is to power of all the entities. 11:59.530 --> 12:07.220 So what I'm going to create a function here, void of all entities. 12:08.290 --> 12:15.940 So when you use a switch in the loop like this, it's often a good practice to not do the complete action 12:15.940 --> 12:20.820 here, but instead to create a function and call that function inside the switch. 12:22.050 --> 12:34.100 So for it, I saw the same I lower down and the three sides that I less plus. 12:36.040 --> 12:40.480 What we are going to do is so what do we need to do is to set. 12:42.170 --> 12:47.930 Each state for each entity here to gloat, because we are going then to use those modes to toggle the 12:47.930 --> 12:49.990 air, so we need to update this as well. 12:50.300 --> 12:56.660 So all the states agree with the index is below. 12:58.090 --> 13:00.640 And then we can do digital, right? 13:02.460 --> 13:13.310 Eddie Ray with time, OK, so this time we use this area for the pin and then look where we do is of 13:13.350 --> 13:18.180 the state in the right, and then we make sure that we apply the state to the pin. 13:19.910 --> 13:23.450 So no dysfunction, I can use it here. 13:24.080 --> 13:31.720 Power of all entities and then to print what we do on the city, we are going to do that just after. 13:32.360 --> 13:32.720 All right. 13:32.730 --> 13:35.360 So we have handled the button zero. 13:36.050 --> 13:40.450 Now we are going to handle the button one button to two and in three. 13:41.270 --> 13:51.830 And here I am going to create one new function e void Tuggle entity from index. 13:52.610 --> 13:56.880 So this function will take INT index. 13:56.890 --> 14:07.910 So that's the index of the array of the LG array here that we can give an index that is zero one of 14:07.910 --> 14:11.970 two because here we have set the to three. 14:12.440 --> 14:17.360 So what I'm going to do first in that function, I'm going to actually validate the data. 14:17.840 --> 14:23.840 So if we try to give toggle and different index, we, for example, index three, four, five or more, 14:24.320 --> 14:28.940 then we are not going to try to access an element that is outside of the array. 14:29.180 --> 14:36.980 So first, I'm going to if index is greater or equal, then the entity, the right size. 14:39.830 --> 14:42.350 I'm going simply to do return. 14:42.800 --> 14:47.710 So in the void, I have told you that we don't return any data. 14:48.110 --> 14:48.530 All right. 14:48.710 --> 14:52.490 But it doesn't mean that you can't return at any time. 14:52.910 --> 14:58.290 So here, if I just return with nothing, just means that I'm going to exit from the function. 14:58.760 --> 15:06.500 So if I sent an index here that is greater or equal than a right size, well, I'm not going to go through 15:06.500 --> 15:08.990 the array and find an element that is not here. 15:09.140 --> 15:13.020 I'm just going to return and know that we have validated the data. 15:13.580 --> 15:19.280 What I'm going to do is pull the two together, the entity we have seen before, that we have to get 15:19.280 --> 15:25.370 a state to state the state as a global variable and then check if the state is low. 15:25.370 --> 15:29.170 We set it too high and if the state is high, we set it too low. 15:29.390 --> 15:32.280 So we are going to do the same thing here, but just using the array. 15:32.900 --> 15:37.700 So we're going to do if L.G. states. 15:38.760 --> 15:40.680 The right wing index. 15:42.370 --> 15:44.350 If this is I. 15:45.740 --> 15:56.990 Then what we're going to do is the state array of this index, we're going to set it to no and then 15:56.990 --> 15:57.530 else. 15:58.400 --> 16:01.910 So there is only one possibility is energy. 16:01.910 --> 16:07.170 State theory of the index said it's too high. 16:07.190 --> 16:11.120 So that's the exact same thing that we have done with the energy state previously. 16:11.130 --> 16:19.550 But this time using an array and then what we can do after we have changed the state in disarray right 16:19.550 --> 16:19.840 here. 16:20.270 --> 16:26.210 What we can do is to do digital right with the PIN number. 16:26.210 --> 16:29.680 The PIN number for the index will be inside the energy array. 16:29.780 --> 16:30.980 So, Edilene. 16:32.630 --> 16:35.300 Right, with index. 16:36.340 --> 16:44.890 And we apply to this being the state that corresponds to the same index on the state every. 16:48.200 --> 16:55.070 All right, so this function with this function, you can toggle any anything from the array, whether 16:55.070 --> 17:03.110 you have one entity or ten entities, that's the same with dysfunction, dysfunction and that one. 17:03.440 --> 17:07.920 If you ever want to increase the number of ads, you don't need to change the functions. 17:08.600 --> 17:10.370 And now let's go. 17:11.060 --> 17:15.890 So let's call Tuggle entity from index directly here. 17:17.540 --> 17:19.250 So, Tugg, any different index? 17:19.260 --> 17:29.360 We are going to use the index zero here and then the index one here and then the index to. 17:32.290 --> 17:38.840 All right, let's just compile the code once again to see if we don't have any error done complaining. 17:39.430 --> 17:44.870 So if it's compiling, it means that you don't have compiled compilation error and we run on the avenue. 17:45.190 --> 17:50.620 It doesn't mean that the functionality would be exactly what you expected, OK, because you can still 17:50.620 --> 17:55.630 make errors that still compile, OK, if you make a logical error, that's still going to compile, 17:55.640 --> 17:59.850 but then your application will not behave the way you want to behave.