WEBVTT 00:00.080 --> 00:02.690 This is step number six of the final project. 00:02.690 --> 00:07.340 And now what we're going to do is we're going to take a photo from the Raspberry Pi. 00:07.340 --> 00:12.710 When we have the command that the button has been pressed on the Arduino. 00:13.010 --> 00:20.450 And if you don't have the Raspberry Pi camera here at this point, well, you can skip this step and 00:20.450 --> 00:23.780 go to the next step where we send the message and the photo to Telegram. 00:23.780 --> 00:27.710 And actually you can just send the message without sending the photo. 00:27.710 --> 00:31.490 So of course it's better and the project will be complete with the camera. 00:31.490 --> 00:37.580 But if you don't have the camera at this time, you can still finish the project just by sending a text 00:37.580 --> 00:39.890 message to the telegram chat. 00:39.950 --> 00:40.370 All right. 00:40.370 --> 00:41.210 And let's start. 00:41.330 --> 00:47.030 So we already have our code structure with the setup of the serial. 00:47.060 --> 00:53.150 With our void loop, we receive data from Serial, and we can also send data to the Arduino. 00:53.150 --> 00:57.710 And we know, of course, that the Arduino is working correctly from the previous steps. 00:57.710 --> 00:59.180 So let's handle the camera. 00:59.180 --> 01:00.990 And this step is going to be pretty quick. 01:01.020 --> 01:01.760 Actually. 01:01.770 --> 01:15.510 Let's create a new and I'm just going to start here and save it as intercom comm step. 01:17.020 --> 01:18.010 Six. 01:21.260 --> 01:26.110 And so the first thing we are going to do is to initialize the camera. 01:26.120 --> 01:34.430 So from Pi camera, so from the Pi camera module, we import pi, camera object. 01:34.940 --> 01:37.880 And now where are we going to initialize this camera? 01:37.880 --> 01:43.460 So we first initialize cell and then we have a wait after setup. 01:43.550 --> 01:46.930 What I'm going to do is I'm going to initialize camera here. 01:46.940 --> 01:52.040 So init camera I'm going to put a print. 01:53.130 --> 01:54.780 So init. 01:54.810 --> 02:02.850 Camera so we know what we're doing and then camera is equal to pi camera. 02:03.570 --> 02:05.430 Let's choose a resolution. 02:05.430 --> 02:15.990 Camera dot resolution is equal to and let's give a tuple and let's use 640 by 480. 02:16.110 --> 02:23.370 Pretty low resolution, but big enough for us to see what we need to see on the image. 02:23.640 --> 02:30.300 And then camera rotation for me because my images are upside down. 02:30.300 --> 02:33.900 So adjust it depending on your camera. 02:34.560 --> 02:44.260 I'm going to create an image folder name, which is slash org slash api slash camera. 02:44.280 --> 02:51.690 Okay, let's use this camera folder in our home directory that doesn't necessarily exist. 02:51.690 --> 02:55.600 And so we're going to check if not OS. 02:55.600 --> 02:57.790 So if we use OS import. 02:58.920 --> 03:02.270 Twice, if not Dot. 03:03.820 --> 03:05.890 Path dot exists. 03:07.030 --> 03:17.860 So if this folder doesn't exist, we create it as dot mkdir image folder name and then we're going to 03:17.860 --> 03:24.940 create an image file name for the photos we're going to take, which is the folder name plus. 03:26.050 --> 03:27.820 So here we give the complete path. 03:28.840 --> 03:31.210 Let's name it dot. 03:32.850 --> 03:35.100 Camera dot jpg. 03:36.210 --> 03:39.600 Okay, let's try to give a more meaningful name than just image. 03:39.870 --> 03:44.010 And after that, we can say print camera. 03:44.040 --> 03:44.760 Okay. 03:46.600 --> 03:47.140 And then. 03:47.140 --> 03:52.780 Well, we need to wait for at least two seconds so the camera can adjust to the luminosity of the room. 03:53.080 --> 03:56.590 But as we are waiting for three seconds here, all ready for the sale. 03:56.800 --> 03:57.640 This is okay. 03:57.640 --> 04:01.540 So the time dot sleep will be useful for both the sale and the camera. 04:01.780 --> 04:08.290 Well, and then once the camera is initialized, the only thing we need to do is to take a picture when 04:08.290 --> 04:09.940 we have the open door request. 04:09.970 --> 04:11.520 Let's add another log here. 04:11.530 --> 04:12.790 Open the request. 04:13.450 --> 04:17.620 Taking a photo we send. 04:17.650 --> 04:26.830 Please wait for a few seconds on the Arduino and we do camera dot capture image file name. 04:27.820 --> 04:29.500 Okay, let's try this code. 04:29.500 --> 04:32.140 So code is still running on the arduino. 04:34.810 --> 04:36.850 I can see main loop is starting. 04:37.390 --> 04:43.150 Let's open file manager here and I'm going to open the camera folder. 04:43.360 --> 04:45.220 Let's clear everything I have for now. 04:45.220 --> 04:45.820 Here. 04:47.470 --> 04:49.540 And I'm going to press on the push button. 04:51.170 --> 04:56.300 And you can see we have open door requests taking a photo and we have a new photo here. 04:56.330 --> 04:59.740 We're going to open it and well, that's working. 04:59.750 --> 05:04.070 If I press on the push button again, let's do something else. 05:04.730 --> 05:08.720 You can see taking a photo and we have another photo. 05:09.110 --> 05:09.470 Okay. 05:09.470 --> 05:18.410 Every time you press on the button, you send a new request and you take a new photo that's going to 05:18.410 --> 05:19.760 replace the previous one. 05:19.910 --> 05:25.880 And now that we have this photo, we can go to the next step, which is to send it to Telegram.