WEBVTT 00:00.150 --> 00:06.240 This is the step 11 and also the final step of the final project of this course. 00:06.530 --> 00:12.660 So the last thing we want to do now in our project is to use the photoresistor to get the current light. 00:12.660 --> 00:18.150 And with that current light and the current luminosity, what we are going to do is to so we are going 00:18.150 --> 00:21.600 to put on the green energy what we can call the light. 00:22.470 --> 00:30.240 And we are also going to add a new mode to the LCD screen so we can print the current value of the luminosity. 00:30.540 --> 00:32.040 So this can be useful. 00:32.340 --> 00:34.120 This is an added functionality. 00:34.200 --> 00:36.170 Get to the circuit and the project. 00:36.630 --> 00:37.690 This can be useful. 00:37.710 --> 00:43.260 Let's say you have the robots and you detect that when the light is too low, then you are going to 00:43.440 --> 00:46.910 automatically increase the light with some energies. 00:46.920 --> 00:52.320 For example, just like you will have automatic lights on a car and not also here. 00:52.320 --> 00:57.070 Not to confuse, but the ultrasonic sensor on the photoresistor are two different things. 00:57.090 --> 01:03.450 OK, the light that you set with the photoresistor will not help the ultrasonic sensor because the ultrasonic 01:03.450 --> 01:08.060 sensor will send some ways that do not require any light. 01:08.070 --> 01:13.890 OK, so the light here is just to say, OK, let's use some light so we can see the robot, let's use 01:13.890 --> 01:14.400 some light. 01:14.420 --> 01:16.800 So, well, let's see if you have a camera. 01:16.800 --> 01:23.430 If you add a camera in the robot, you can also help the camera by providing a good lighting. 01:23.610 --> 01:23.870 All right. 01:23.880 --> 01:25.120 So let's get started with this. 01:25.150 --> 01:31.770 So first, I am going to set up the photoresistor and let's put so we have all been here. 01:31.770 --> 01:32.700 Let's put it here. 01:33.210 --> 01:40.680 For example, define for to operate the store pin, which is a zero. 01:41.790 --> 01:50.940 And I'm going also to define here the light and pin pin number 10, make sure this is a pin which has 01:50.940 --> 01:53.340 a B.W. and functionality. 01:54.690 --> 02:02.400 So here we go in the set up in the set that we don't need to initialize the European because we are 02:02.400 --> 02:12.470 going to use it as an analog inputting, but we need to initialize spin mode like editing to output. 02:13.500 --> 02:14.940 Let's actually put that. 02:16.210 --> 02:18.430 With the other hand, it is here. 02:20.120 --> 02:28.970 OK, that's it for the initialization now in the loop, so we have our different functions, so we need 02:28.970 --> 02:35.900 to ask ourselves, do we want to only check the photoresistor when the application is locked or when 02:35.900 --> 02:37.220 the application is not locked? 02:37.220 --> 02:41.440 Or in any case and actually it doesn't really matter. 02:41.450 --> 02:42.700 Any case is fine. 02:42.740 --> 02:49.070 We just want to continuously check the photoresistor, but actually with the rate of one hundred milliseconds. 02:49.070 --> 02:55.690 So every 100 means we are going to update the light and update the LCD screen. 02:56.510 --> 02:57.470 So I'm going to add. 02:58.490 --> 03:09.830 OK, here we have I can if you up to the storm and cyclone last time. 03:12.050 --> 03:14.840 That's the last thing, right, Luminosity? 03:16.630 --> 03:24.640 Initialized to Amelie's and then unsigned long, let's see, breed luminosity. 03:26.070 --> 03:29.100 DeLay is so let's say one hundred. 03:30.310 --> 03:31.220 That would be fine. 03:31.630 --> 03:32.260 OK. 03:32.290 --> 03:39.750 Now in the loop, so I'm going to do I'm going to go at the end of the loop after we do everything OK, 03:39.760 --> 03:42.090 because it doesn't really matter. 03:42.520 --> 03:47.320 I'm going to do if thank no minus last time. 03:47.800 --> 03:48.240 Great. 03:49.470 --> 03:52.530 Luminosity, if this is greater than the. 03:53.570 --> 03:55.490 Great luminosity. 03:58.180 --> 03:58.690 Delate. 04:01.180 --> 04:07.270 What we do is always we add the delete to the last time. 04:09.670 --> 04:12.820 And now we can get so into luminosity. 04:14.470 --> 04:16.990 We can directly get the remnants with analog. 04:18.320 --> 04:21.520 Read from the photo register. 04:26.100 --> 04:28.200 And then we are going to do two things. 04:29.490 --> 04:33.810 Set light green on city. 04:34.410 --> 04:37.190 So let's create two functions to do that. 04:37.400 --> 04:44.040 I'm going to create in here above the void setup to void, let's say set light. 04:45.790 --> 04:49.210 Read from Luminosity. 04:50.850 --> 04:59.280 Within the INS, because this is a value between zero and one thousand twenty three, and I'm going 04:59.280 --> 05:05.520 to compute the brightness flexibile because the brightness for the analog verite function will be between 05:05.520 --> 05:08.730 zero and 255 brightness. 05:09.950 --> 05:20.870 Is equal to so we have already done that before, 255 minus luminosity divided by four, because we 05:20.870 --> 05:27.430 need to scale down the value from one cell twenty three maximum to two hundred fifty five maximum. 05:27.440 --> 05:31.890 So we need basically to divide by four and we need to also invest. 05:32.180 --> 05:37.070 OK, so the more luminosity, the lower the brightness. 05:38.500 --> 05:48.160 And then unallowed bright light and then so that's why I told you it's important to use a pillow U.N. 05:48.160 --> 05:50.440 team because we use analogue, right? 05:51.580 --> 05:52.120 Brightness. 05:54.270 --> 06:07.010 OK, we have the first function here and let's create another one void print luminosity on LCD int it. 06:09.010 --> 06:14.860 And actually, to print that on the screen, we need to check two things we need to check if this is 06:14.860 --> 06:16.410 not logged. 06:16.430 --> 06:26.440 So if exclamation mark is locked and if the LCG mode is actually the mode for the luminosities. 06:26.440 --> 06:30.040 So we need to create a new mode for the luminosity. 06:31.540 --> 06:34.160 So let's create here. 06:34.660 --> 06:43.630 We have LCD distending settings and different LCD mode, luminosity to. 06:45.140 --> 06:49.040 OK, so let's use that now to just. 06:50.110 --> 06:55.190 It if the mood is luminosity and then we're going to go out to toggle it. 06:56.470 --> 07:02.410 So if it's locked, we don't bring that, we print that warning, the error message, if it's not locked 07:02.410 --> 07:11.500 and the mode is the correct mode, we print the LCD set ghiorso zero zero. 07:13.610 --> 07:14.990 And Brent. 07:16.290 --> 07:17.130 Luminosity. 07:19.080 --> 07:31.110 And then actually print up the viral value we have it let's add a few extra species just in case. 07:32.530 --> 07:39.190 All right, so we should have the 16 characters and that's it for the two functions, so I'm going to 07:39.190 --> 07:41.740 call them from the look. 07:42.840 --> 07:49.650 A satellite with luminosity that we get here and. 07:50.600 --> 07:54.800 Let's go back to Princeton University and City. 07:58.540 --> 08:00.310 We luminosity. 08:02.860 --> 08:04.280 Let's not forget the semicolon. 08:05.110 --> 08:06.080 So what do we do here? 08:06.100 --> 08:10.180 We get the city, we set the light and we print on the LCD. 08:10.180 --> 08:13.840 And of course, when we go to this auction, we check the vault. 08:14.110 --> 08:16.950 So now we need to change the LCD mode. 08:16.960 --> 08:24.490 We need to add to handle this mode or so when we do the toggle LCD screen. 08:25.030 --> 08:25.330 OK. 08:26.380 --> 08:31.810 So we have case distance settings and in case. 08:33.680 --> 08:34.370 Luminosity. 08:36.240 --> 08:38.710 So you can see now why I used the switch. 08:39.290 --> 08:41.790 Let's just break and let's do. 08:43.010 --> 08:46.370 Entity mode is now equal to. 08:50.570 --> 08:52.860 And here I'm going to put it here. 08:53.630 --> 08:58.820 So if his distance would change to settings, if it's settings would change to a living entity, if 08:58.820 --> 09:01.590 it's luminosity would change to distance again. 09:02.760 --> 09:04.230 And the thing is that No. 09:05.590 --> 09:11.560 As you can see here, we have to balance, we are up and down, so before that, it was not that important 09:11.560 --> 09:18.260 because we only had two votes, but now we have mode's one, two and three, which means that Wildeblood 09:18.330 --> 09:23.760 that we could say we want to go to the next move and with the Burrendong, we want to go to the previous 09:23.760 --> 09:24.110 smoke. 09:24.130 --> 09:29.080 So if you're in mode two, for example, and you press the button up, you go to three. 09:29.770 --> 09:32.630 But if you press the button down, you go to mode one. 09:33.820 --> 09:36.370 So let's add here, let's make it simple. 09:36.370 --> 09:38.950 Let's add a boolean next. 09:40.060 --> 09:43.750 If the boolean is true, it means the next one. 09:43.780 --> 09:46.650 If the word is false, it means the previous one. 09:47.320 --> 09:49.440 So not in the mood is currently distance. 09:49.450 --> 09:53.650 What I'm going to do, I'm going to use the one line if next. 09:55.060 --> 09:56.390 So next is a boolean. 09:56.410 --> 09:58.630 So this we can just test it. 09:58.630 --> 10:00.490 OK, three, be true or false. 10:00.970 --> 10:06.040 If next then we go to sitting's and then Calon. 10:06.340 --> 10:11.480 If not, we go to Leninists, which is the mode number three. 10:11.740 --> 10:16.390 So when we are in mode, the first mode next we go to the second mode. 10:16.690 --> 10:18.570 Previous we go to the mode. 10:18.580 --> 10:27.680 So the last one OK then aelfwine mode settings and we have the next, next, then we go to Luminosity. 10:28.120 --> 10:30.670 But if it's previous we go to distance. 10:32.040 --> 10:34.950 And then when we are in Luminosity, if. 10:36.470 --> 10:41.910 Next, then we go to distance, OK, because there is nothing after leaving the city, we go back to 10:41.930 --> 10:42.380 distant. 10:43.560 --> 10:47.630 Else, we go back to settings here. 10:49.330 --> 10:55.150 OK, and you can see now you can add as many GS as you want in the switch, that would be very easy 10:55.150 --> 10:55.690 to handle. 10:55.720 --> 11:01.540 OK, just do next and then the next one, the previous one you can choose in which order you are going 11:01.540 --> 11:05.220 to navigate through the different modes of the exit. 11:05.620 --> 11:11.470 And of course, the default is always going to the default in case we have said something that is wrong. 11:11.680 --> 11:15.940 And because we have moved next, now we need to actually use. 11:17.490 --> 11:18.160 A perimeter. 11:18.630 --> 11:25.800 That's where we have an arrow, something to do through here and force him to go LCD screen through 11:25.800 --> 11:29.220 for next Fox for next, which means produce one. 11:29.820 --> 11:30.480 All right. 11:30.480 --> 11:39.980 Let's just verify and name it as final projects that even the last one. 11:42.920 --> 11:45.130 Don't complaining and no. 11:45.740 --> 11:54.200 So just a very quick recap of what we have added here, so we have added the photoresistor reading here, 11:54.210 --> 11:55.180 we finally agreed. 11:55.400 --> 12:02.270 We also the time functionality to read every one hundred milliseconds, which should be here. 12:03.560 --> 12:12.080 And then what we do is we set light energy, so we use analogue right for the energy to increase the 12:12.080 --> 12:19.820 brightness when the luminosity decreases and then we print the luminosity on the LCD when we are in 12:19.820 --> 12:22.520 the LCD mode, luminosity. 12:22.700 --> 12:29.900 And of course, because we have added one mode, we have added this mode also to the toggle LCD screen 12:29.900 --> 12:30.590 function. 12:30.670 --> 12:36.680 OK, so we can toggle between the different modes using two older going to the next one, all the previous 12:36.680 --> 12:43.070 one from the button up and down from the infrared remote control. 12:43.310 --> 12:49.090 So now you can see once you have set up the different functionalities and components, you can create 12:49.090 --> 12:53.640 a much more complex behavior and you don't need to write thousands of lines of code. 12:54.020 --> 12:59.590 And now let's finally upload that, which is the final product, which is the complete project. 13:00.110 --> 13:03.350 And let's see if everything is working. 13:04.970 --> 13:10.910 So you can see here we have the distance in centimeters and now I'm going to press on down button. 13:11.510 --> 13:15.740 So I'm going to the settings, which is the next mode I press again. 13:15.980 --> 13:23.810 I go on the luminosity and I can see the luminosity as well as the energy here, which is both on OK. 13:24.770 --> 13:31.520 And if you try to lower that immunity, you will see the brightness increase and you increase the luminosity, 13:31.520 --> 13:32.820 the brightness will decrease. 13:33.200 --> 13:35.440 So no angle in that order. 13:35.450 --> 13:44.330 So distance settings, Leninists and going to the other down button and I'm going under the reverse 13:44.330 --> 13:44.710 order. 13:44.870 --> 13:48.590 OK, luminosity settings, distance. 13:49.850 --> 13:50.240 OK. 13:51.900 --> 13:57.360 And well, sometimes it may happen that it's too sensitive, so you are going to press twice on the 13:57.360 --> 14:01.890 same button, so just make sure that you correctly press on the button. 14:02.080 --> 14:07.620 And, of course, again, that you have a good battery inside the remote control and, well, that is 14:07.620 --> 14:09.480 the end of the final project.