WEBVTT 00:00.180 --> 00:06.730 And now that you have added your photoresistor to your annual secret, let's see how to get some values 00:06.750 --> 00:07.360 from it. 00:07.830 --> 00:10.490 So that is super, super easy here. 00:10.500 --> 00:16.520 We don't need any library to read from the scene, so we just need to use the analog grade function. 00:16.830 --> 00:22.610 So first, I'm going to define a photo register. 00:23.700 --> 00:31.590 Being, which is a zero, so make sure this is an honor to in this setup to remove that, I don't need 00:31.590 --> 00:35.740 to use spin mode because this is already an analog input being. 00:35.790 --> 00:39.080 OK, if you'll remember, from the analog pings section. 00:39.630 --> 00:48.900 So Nossiter and in the loop, if I want to get disvalue, I just do analog read with the photoresistor 00:49.290 --> 00:53.560 thing and I get the video so I know what I'm going to do. 00:53.910 --> 00:57.600 I'm just going to print it so that Biggin. 00:59.570 --> 01:04.880 OK, I'm just going to put that inside, so, yeah, that's right, and so we can monitor it. 01:05.310 --> 01:11.490 And then for the sake of this example, I'm going to add a delay of one hundred, OK, that I'm, of 01:11.490 --> 01:15.450 course, not going to use when we do the following activities and final project. 01:16.110 --> 01:18.300 But here we just want to test one thing quick. 01:18.570 --> 01:20.250 So let's just add a small delay. 01:20.250 --> 01:21.920 And that's really not the problem here. 01:22.170 --> 01:30.690 So I'm going to upload now the code to the original, let's name it to the stop. 01:34.790 --> 01:41.200 And let's open the Syrian money to oil and let's see what we get here so we can some values. 01:41.810 --> 01:45.170 Three hundred seventy, 60, 80 something. 01:45.200 --> 01:49.790 OK, so this is the actual measurement of the SENSEOR. 01:50.090 --> 01:55.520 So between zero, which is the minimum, which is completely dark, and one thousand twenty three, 01:55.760 --> 01:58.760 which should be completely like one hundred percent light. 01:59.330 --> 02:06.320 So now if I put my hand on something on top of the sensor so you can see the luminosity is reduced and 02:06.320 --> 02:10.970 what we are going to right now is 40 something, so it doesn't go to zero. 02:11.320 --> 02:14.630 OK, as you can see, the value here is not zero. 02:14.630 --> 02:19.310 Is 40 something that that's the minimum I can get basically here it seems. 02:19.890 --> 02:24.020 So I remove my hand and no, we are going back to three hundred sixty something. 02:24.290 --> 02:26.750 I'm going to add some more lights to the room. 02:27.170 --> 02:30.860 OK, just OK right now. 02:31.070 --> 02:40.730 And you can see now we are at seven hundred fifty something so I'm going to turn off the light and we 02:40.730 --> 02:43.160 are going back to three hundred seventy. 02:44.290 --> 02:49.090 So the value you get here, just values, then you need to interpret them. 02:49.390 --> 02:54.740 So now it would be up to you to define actually what values correspond to what. 02:54.760 --> 03:01.480 OK, so what you can do is try in your own government when you have a full light, see what is the value 03:01.480 --> 03:03.790 you get and then try it with a low light. 03:04.060 --> 03:08.880 Maybe try at night, OK, if you want to measure outside and try outside, OK. 03:08.890 --> 03:12.960 And just note the different values you get for different threshold. 03:13.210 --> 03:19.110 So then you will be able to create some defines for the thresholds you want. 03:19.120 --> 03:24.250 So in your code you can compare the value you get with those threshold and that's what we are going 03:24.250 --> 03:24.550 to do. 03:24.670 --> 03:31.040 So in the following activities, so to recap, to use the photoresistor or you just use it with another 03:31.060 --> 03:32.220 great function, that's it. 03:32.530 --> 03:38.920 You get a value between zero and one thousand twenty three and then you can test this sense in different 03:38.920 --> 03:46.000 under different luminosities and interpret the values you get to define some thresholds, for example, 03:46.000 --> 03:51.170 to put on an entity or to start another actions and what we can do. 03:51.190 --> 03:54.160 So in the 80s, use the sale plotter. 03:54.880 --> 03:56.620 OK, so that's quite convenient here. 03:56.620 --> 03:59.410 You can see I have my authority store. 03:59.440 --> 04:05.380 I put my hand on top of it and then I remove it so you can see the evolution of the value.