WEBVTT 00:00.250 --> 00:04.890 Great, you now have created and applauded your first aid program. 00:05.040 --> 00:10.270 And before we go further, there is one thing you need to learn is how to use the serial moniteau. 00:10.560 --> 00:17.100 So basically, the program we are trying to solve is how to get some information about what's happening 00:17.100 --> 00:20.460 in the program from the Adreno to our computer. 00:20.790 --> 00:26.910 Basically, if you are familiar with the term, we are wanting to get some reblogging functionality 00:27.240 --> 00:32.670 and because the code is running on the out in the world and not on your computer, well, we can't just 00:32.670 --> 00:36.590 log stuff on the Arduino because we won't be able to see it. 00:36.930 --> 00:43.990 We need to use a special form of communication between our and our computer to be able to get some information. 00:44.010 --> 00:47.670 And that is cellular communication and goodnews. 00:47.670 --> 00:51.300 The cellular communication is actually going through the USB cable. 00:51.650 --> 00:53.570 You don't need any other power setup. 00:54.030 --> 00:58.400 So let's see how cell works and we need to remove that commands. 00:58.860 --> 01:03.570 You can start by writing cell with the keys. 01:03.570 --> 01:03.820 Okay. 01:03.840 --> 01:07.760 You should see it then arrange that begin. 01:08.280 --> 01:14.680 OK, so you open parentheses and inside you are going to put nine thousand six hundred. 01:15.150 --> 01:16.680 And don't forget the cynical. 01:17.190 --> 01:19.920 OK, this will initialize. 01:21.550 --> 01:23.230 Cellular communication. 01:25.160 --> 01:30.320 And of course, we put it in the setup function because this is something that we are going to do only 01:30.320 --> 01:32.120 once at the beginning of the program. 01:32.360 --> 01:35.270 And this number here is called the board. 01:35.270 --> 01:35.720 Right. 01:35.740 --> 01:39.410 So basically how fast the data transfer will be. 01:39.590 --> 01:45.470 And we are going to use this value because this is a pretty common and classic value for Arduino. 01:45.890 --> 01:54.530 So after we have initialized sale communication, we can do sell young dot print or sell the print L.N.. 01:54.950 --> 01:59.720 OK, we're going to use print Palin to simply print some text. 01:59.960 --> 02:00.500 Hello. 02:02.420 --> 02:08.480 So don't forget here, the codes to define this will be a train. 02:08.630 --> 02:12.710 OK, you close the parentheses and add this semicolon. 02:13.250 --> 02:20.510 OK, so now if I so I can verify your code and I can upload directly which will first verify and then 02:20.660 --> 02:21.200 upload. 02:21.950 --> 02:28.560 Let's name the project debug artist debug. 02:30.540 --> 02:38.010 OK, compiling, uploading and uploading, so now, well, these coyotes are running on the alino, 02:38.280 --> 02:42.030 but how can we actually get this data here? 02:42.390 --> 02:46.940 Well, you need to open the monitor and to open the ceremony to here. 02:47.220 --> 02:48.630 You can click on here. 02:48.630 --> 02:51.900 You can see say a little on this icon here. 02:53.450 --> 02:58.450 And here, well, you don't see anything is because the set up is not quite correct here. 02:58.760 --> 03:06.620 So let's look at the bottom of this window so you can leave Squirrelled checked and this and checked. 03:07.280 --> 03:11.330 And then it's important that you check no line ending. 03:11.660 --> 03:14.150 And then here you have to choose a bod. 03:14.150 --> 03:14.710 Right. 03:15.140 --> 03:18.910 OK, so you have different numbers which are pretty common for all you know. 03:19.220 --> 03:24.140 And as you can see here, we have a board rate of one hundred, fifteen thousand and two hundred. 03:24.530 --> 03:28.770 But in our program we have a rate of nine thousand six hundred. 03:29.090 --> 03:35.060 So this is not the same board rate, which means this is not the same speed of transfer and which means 03:35.060 --> 03:41.710 that we simply can't communicate between the two, between the original and between the same window 03:41.720 --> 03:43.070 here on the computer. 03:43.430 --> 03:45.200 So you need to provide the same both. 03:45.200 --> 03:45.540 Right. 03:45.680 --> 03:54.140 OK, I'm going to use nine thousand six hundred and now so this will actually make the other restart. 03:54.620 --> 03:55.650 And no, you can see. 03:55.670 --> 03:56.990 Hello, Adrian. 03:57.590 --> 03:57.900 Great. 03:57.920 --> 04:02.660 So make sure you have the same board right between your program and the same monitor. 04:02.690 --> 04:06.620 This is one of the most common mistakes when you begin and no one does. 04:06.620 --> 04:11.240 Great, because whatever we want to print on the I don't know what will be able to see it on the same 04:11.240 --> 04:11.620 monitor. 04:11.630 --> 04:15.470 So we have the functionality with logging. 04:16.280 --> 04:22.430 And now just I'm going to make a few additions to this program just so you can see another time how 04:22.430 --> 04:24.710 to set up and loop functions are working. 04:25.220 --> 04:26.500 So keep in the loop. 04:26.510 --> 04:29.600 What I'm going to do is to sell that print, Ellen. 04:30.710 --> 04:32.210 Let's sit in the loop. 04:34.300 --> 04:44.590 OK, and then delay five hundred milliseconds, so in the loop, I'm going to print so in the loop the 04:44.590 --> 04:51.910 text and wait for zero point five Segan and also so we print and it will print. 04:51.910 --> 04:53.440 Plus add a new line. 04:53.590 --> 04:56.040 OK, if you just use print, it will print. 04:56.050 --> 05:02.900 But whatever text you print will be added to the directly to the last piece of string you have printed. 05:03.160 --> 05:11.650 So what you want to do usually is to use print and if you want to print one text per line and now let's 05:11.730 --> 05:12.910 block this code. 05:14.980 --> 05:22.080 I can open the cell monitor and you will see hello and then look in, etc.. 05:22.650 --> 05:30.030 OK, so I'm going to remove photos from here so you can clearly see that the code inside of the setup 05:30.030 --> 05:35.120 function is executed once and the code inside the loop function is executed. 05:35.400 --> 05:37.770 Well, an infinite number of time. 05:40.850 --> 05:46.010 All right, now you know how to use the same money to develop your program, and we are going to come 05:46.010 --> 05:47.100 back to this CNN Money. 05:47.120 --> 05:50.600 So we've much more details later in the schools.