WEBVTT 00:00.180 --> 00:05.700 This is the solution of the previous activity where we agreed to improve the current program we have 00:06.060 --> 00:11.390 so that we can make it, the three entities blink and stop when we press the button. 00:11.760 --> 00:15.440 So we have quite a few things to do, but let's start step by step. 00:15.450 --> 00:19.000 So first, we already have our Dippin right here. 00:19.310 --> 00:22.520 OK, I'm going to work on the set up function first. 00:22.990 --> 00:23.220 Right. 00:23.340 --> 00:27.990 So following the setup, we have four p.m. and three digital. 00:27.990 --> 00:28.290 Right. 00:28.990 --> 00:32.210 So the ping button doesn't change in here. 00:32.400 --> 00:37.480 Instead of using Benmore three times what I'm going to use a full. 00:41.320 --> 00:50.320 That at zero and then I and we want to continue wide eyed is typically lower than the size of discovery. 00:50.650 --> 00:52.980 I'm going to I less pass. 00:54.900 --> 01:02.880 So it will start at zero and then one and then two, and when it arrives at three, three, which is 01:02.880 --> 01:03.770 out of the great. 01:04.740 --> 01:13.080 Then this condition is false and then we exit the fall, so as a reminder, here we have index zero, 01:13.080 --> 01:18.090 index one, an index to we start to count at zero. 01:18.090 --> 01:25.590 And then when you have so when you have the size of the array or the index, you have to stop at the 01:25.590 --> 01:30.570 size minus one because we have historically lower than. 01:32.020 --> 01:36.610 We will stop at the site, minus one, what we do in Moad. 01:38.350 --> 01:44.700 And then so we need to find the PIN number and PIN number is actually inside the area. 01:45.270 --> 01:47.950 We are going to write the name of ring in. 01:49.210 --> 01:49.590 All right. 01:50.170 --> 01:52.960 We've brackets in the brackets. 01:52.960 --> 01:57.880 We're going to give the index and then I'll put. 01:59.440 --> 02:07.870 So this will first, though, this will be I would be zero, so it will be one thing just like we did 02:07.870 --> 02:11.940 here and then energy two and three and that's it. 02:12.280 --> 02:13.240 But we can remove. 02:14.330 --> 02:18.480 So three lines here and now the call is actually much clearer. 02:18.540 --> 02:22.120 OK, we just use Benwood once and that's it. 02:22.520 --> 02:24.410 The weather, we have three inches. 02:25.070 --> 02:25.610 Two hundred. 02:25.610 --> 02:27.320 And it is we have the same coat. 02:28.950 --> 02:39.330 And let's put this into a function, it void set in mode, so we create a function, we void because 02:39.330 --> 02:43.600 we don't return anything, we don't require any parameter. 02:43.670 --> 02:50.260 OK, we are simply going to use directly the array inside the function. 02:50.280 --> 02:54.120 OK, and what we can do is simply take this. 02:56.420 --> 02:57.830 Up and set it there. 02:58.520 --> 03:08.360 So this is our function, which will set the spin mode and then of course this function alone will not 03:08.360 --> 03:08.900 do anything. 03:08.930 --> 03:13.340 This is just a block of code that you declare and that can be used. 03:13.350 --> 03:16.670 But if you don't use it, well, it's not going to do anything. 03:17.210 --> 03:23.210 So in the setup function, we call the function set in mode. 03:23.900 --> 03:24.310 All right. 03:24.680 --> 03:27.650 And now let's do the same thing with this block of. 03:27.950 --> 03:30.770 So I'm just going to create a function directly. 03:32.540 --> 03:35.680 Then of all ages. 03:37.770 --> 03:40.540 And we're going to do a full also. 03:42.750 --> 03:48.690 Start at zero and then I is typically lower than the average size. 03:48.930 --> 03:49.860 That is the same. 03:51.270 --> 03:52.270 A plus plus. 03:53.040 --> 03:57.620 All right, the ones you know how to go through an all right, well, the follow doesn't change. 03:57.630 --> 03:58.480 It's always the same. 03:59.310 --> 04:02.070 And then digital rights. 04:02.760 --> 04:07.710 And in theory, I just like it here. 04:09.260 --> 04:10.370 And then simply load. 04:12.240 --> 04:17.430 And this function will turn off all the entities, just like the name suggests. 04:18.030 --> 04:23.550 So what we can do now is simply call the function of both entities. 04:25.630 --> 04:30.310 And let's not forget this semicolon, OK, when you call a function. 04:31.810 --> 04:33.040 You don't need them. 04:33.060 --> 04:39.780 OK, don't put a semicolon after you declare a function with the definition of the function in the block, 04:40.710 --> 04:45.680 but when you call them, have to use the semicolon and let's just remove that. 04:46.560 --> 04:49.550 And as you can see, our set of code is no much clearer. 04:50.100 --> 04:53.830 And this will work whether you have three of 10 or more entities. 04:54.330 --> 04:54.740 Great. 04:55.350 --> 04:59.970 So now let's handle the loop function in the loop. 05:00.000 --> 05:06.990 We are still going to use the digital arena check for a pushbutton, OK, but we simply want to remove 05:06.990 --> 05:09.280 all of the digital rights as well. 05:09.460 --> 05:09.700 OK. 05:10.990 --> 05:13.270 I'm going to create a function here. 05:15.060 --> 05:18.330 Which name is what do they say to these? 05:20.690 --> 05:23.750 OK, and so void as well. 05:23.790 --> 05:27.860 OK, because this is a function to execute an action, not to return something. 05:29.320 --> 05:34.750 And then I'm going to copy that you. 05:36.270 --> 05:43.680 The controlled explosion cut and then put it here, as you can see, the indentation is completely wrong. 05:44.100 --> 05:45.390 So what I can do is. 05:46.440 --> 05:49.860 I select everything in it it. 05:51.050 --> 05:54.150 You can you can see increase or decrease the indents. 05:55.230 --> 05:58.790 For example, we shift and double and decrease it. 06:00.290 --> 06:07.550 Going to do this, that we have to in addition, here or here, that's all right. 06:07.550 --> 06:11.900 I know here I'm simply going to call the function. 06:15.100 --> 06:22.810 So let's see if everything is correct in the total dysfunction, so we take the blink states, OK, 06:23.080 --> 06:25.300 this viable is it? 06:25.800 --> 06:27.850 But in a more global scope, we can use it. 06:28.990 --> 06:34.690 If it's one, then we simply do our business here I how we change the state. 06:35.230 --> 06:38.020 So the next time we enter the function, the state is changed. 06:38.020 --> 06:45.880 And instead of going here we go else and we do this, but we change the blink rate for it. 06:45.930 --> 06:46.330 It is. 06:46.330 --> 06:51.780 And then we change the variable to go back to one the next time we call it a function. 06:51.970 --> 06:55.860 And of course after that we wait for three hundred milliseconds. 06:56.140 --> 07:01.840 Actually, this maybe instead of putting here, I'm going to put it there. 07:05.140 --> 07:11.020 The total LSD is just in charge of doubling the and it is then in the loop. 07:12.180 --> 07:16.680 We had the delay so we can change the delay outside of this function. 07:17.710 --> 07:24.440 In the loop, we only have it if the button is not pressed, we took all the ladies and we wait three 07:24.440 --> 07:25.360 hundred milliseconds. 07:26.250 --> 07:26.850 All right. 07:26.960 --> 07:32.830 And now you can see that we have some valuables here for initialization. 07:33.200 --> 07:34.520 We have some constants. 07:35.180 --> 07:37.490 We have one, two and three functions. 07:38.560 --> 07:45.700 And in the setup, we only have three lines of code and in the loop we only have four lines of code, 07:46.240 --> 07:47.780 so that's actually much better. 07:48.250 --> 07:54.250 The one thing here is that actually by doing which we did in this activity, we increased the total 07:54.250 --> 07:55.950 number of lines in the program. 07:56.050 --> 08:03.640 OK, the program may seem a little bit more complex, but the truth is that it's actually much less 08:03.640 --> 08:08.290 complicated because the setup is very minimal. 08:08.410 --> 08:09.880 The loop is very minimal. 08:10.180 --> 08:15.550 And then the functions will allow you to easily change the behavior of your program. 08:15.940 --> 08:18.520 So now we have three entities. 08:19.000 --> 08:23.500 If they want to add a fourth entity, I just need to add a defined here. 08:24.040 --> 08:29.800 But it's a defined entity for PIN nine and then change here to four. 08:30.550 --> 08:34.330 Add the eight to the array and. 08:34.780 --> 08:37.040 Well, this doesn't change. 08:37.240 --> 08:38.590 This doesn't change. 08:39.780 --> 08:46.950 The setup and the loop don't change either, we just change also here, the 80s, but it's much more 08:46.950 --> 08:53.730 easier to handle and everything we did here, creating functions, using full loops, going through 08:53.730 --> 08:59.310 arrays, etc. We are going to use them, of course, in the following of these calls and you are going 08:59.310 --> 09:02.000 to use them in many projects that you create. 09:02.160 --> 09:02.540 All right. 09:02.560 --> 09:05.400 And of course, let's test the program. 09:05.410 --> 09:06.840 So I'm going to verify it. 09:09.440 --> 09:10.310 Number seven. 09:12.800 --> 09:19.010 OK, and let's applaud code to see if we are not wrong with what we need and if we have the exact same 09:19.010 --> 09:25.550 results and yes, it seems that it's working the exact same way as before. 09:26.030 --> 09:26.390 All right. 09:26.390 --> 09:31.390 So that's the end of this activity and that's also the end of the first part of the. 09:31.790 --> 09:32.870 So congratulations. 09:32.870 --> 09:38.870 You have not seen all the basic stuff you need all the basic hardware functionalities to be able to 09:38.870 --> 09:40.330 create more complex program.