{"id":54386,"date":"2021-10-18T19:28:56","date_gmt":"2021-10-18T11:28:56","guid":{"rendered":"https:\/\/www.seeedstudio.com\/blog\/?p=54386"},"modified":"2021-10-18T19:42:08","modified_gmt":"2021-10-18T11:42:08","slug":"how-to-setup-an-intelligent-meeting-room-reservation-system-on-reterminal","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2021\/10\/18\/how-to-setup-an-intelligent-meeting-room-reservation-system-on-reterminal\/","title":{"rendered":"How to Setup an Intelligent Meeting Room Reservation System on reTerminal"},"content":{"rendered":"\n
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Introduction<\/h2>\n\n\n\n

This blog will talk about how to setup an Intelligent Meeting Room Reservation System on the reTerminal. Basically, reTerminal LCD can be used to create meetings and visualize the current meeting status. Also, it is linked with a cloud calendar as well so that it syncs all upcoming meeting information and visualize them on the display.<\/p>\n\n\n\n

What is reTerminal?<\/h2>\n\n\n\n

reTerminal<\/a> is an HMI device powered by a Raspberry Pi Compute Module 4 (CM4) which has a Quad-Core Cortex-A72 CPU running at 1.5GHz. Also, it has a 5-inch IPS capacitive multi-touch screen with a resolution of 1280 x 720. It has a sufficient amount of RAM (4GB) to perform multitasking and also has a sufficient amount of eMMC storage (32GB) to install an operating system, enabling fast boot-up times and a smooth overall experience. It has wireless connectivity with dual-band 2.4GHz\/5GHz Wi-Fi and Bluetooth 5.0 BLE.<\/p>\n\n\n\n

\"\"<\/a><\/figure><\/div>\n\n\n\n

Setup the Application<\/h2>\n\n\n\n

Obtain OAuth JSON file from Google<\/h3>\n\n\n\n

First, we need to obtain an OAuth JSON file from Google authorization server. This is needed because we need to have access to Google APIs. Specifically, we need to use the Google Calendar API in order to access the Google Calendar events (meetings) that we will create later in this guide.<\/p>\n\n\n\n

Step 1:<\/strong> Open this link<\/a> and login to Google Cloud Platform with your Google account<\/p>\n\n\n\n

Step 2:<\/strong> Next to Google Cloud Platform, click the Down arrow and click \u201cNEW PROJECT\u201d to create a new project<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 3:<\/strong> Enter a \u201cProject Name\u201d and click \u201cCREATE\u201d<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 4:<\/strong> Click the down arrow again and select the newly created project<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 5:<\/strong> From the left menu, navigate to APIs & Services > Credentials<\/strong><\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 6:<\/strong> Click \u201cCONFIGURE CONSENT SCREEN\u201d<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 7:<\/strong> Select \u201cExternal\u201d under \u201cUser Type\u201d and click \u201cCREATE\u201d<\/p>\n\n\n\n

Step 8:<\/strong> Fill in \u201cApp name\u201d, \u201cUser support email\u201d and \u201cDeveloper contact information\u201d because they are compulsory fields<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 9:<\/strong> Scroll down to the bottom and click \u201cSAVE AND CONTINUE\u201d<\/p>\n\n\n\n

Step 10:<\/strong> On the \u201cScopes\u201d page, scroll down to the bottom and click \u201cSAVE AND CONTINUE\u201d<\/p>\n\n\n\n

Step 11:<\/strong> On the \u201cTest users\u201d page, click \u201c+ ADD USERS\u201d, enter your Gmail and click \u201cADD\u201d<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 12:<\/strong> Click \u201cSAVE AND CONTINUE\u201d<\/p>\n\n\n\n

Step 13:<\/strong> On the \u201cSummary\u201d page, scroll down and click \u201cBACK TO DASHBOARD\u201d<\/p>\n\n\n\n

Step 14:<\/strong> If you wish to grant access to this for any user, you can click \u201cPUBLISH APP\u201d and then \u201cCONFIRM\u201d<\/p>\n\n\n\n

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Step 15:<\/strong> Next, click \u201cCredentials\u201d from the left navigation menu<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 16:<\/strong> Click \u201c+ CREATE CREDENTIALS\u201d and select \u201cOAuth client ID\u201d<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 17:<\/strong> Under \u201cApplication type\u201d, select \u201cDesktop app\u201d and click \u201cCREATE\u201d<\/p>\n\n\n\n

Step 18:<\/strong> Click \u201cDOWNLOAD JSON\u201d to download this file to your computer<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 19:<\/strong> Rename the file to \u201cclient_secret.json\u201d<\/p>\n\n\n\n

Now we have successfully obtained the OAuth JSON file from Google!<\/p>\n\n\n\n

Enable Google Calendar API<\/h3>\n\n\n\n

Now we need to enable the Google Calendar API so that we can access it<\/p>\n\n\n\n

Step 1:<\/strong> On the Google Cloud Platform page, search for “Calendar” and select \u201cGoogle Calendar API\u201d<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Step 2:<\/strong> Click \u201cENABLE\u201d<\/p>\n\n\n\n

Configure the application on reTerminal<\/h3>\n\n\n\n

Now let\u2019s move on to setting up the application on the reTerminal!<\/p>\n\n\n\n

Step 1: <\/strong>Follow this wiki<\/a> for an initial getting started guide for the reTerminal<\/p>\n\n\n\n

Step 2: <\/strong>Login to reTerminal and execute the following command to update the packages list<\/p>\n\n\n\n

sudo apt update<\/code><\/pre>\n\n\n\n
Step 3<\/strong>: Execute the following to install the needed dependency<\/p>\n\n\n\n
sudo apt install libgconf-2-4<\/code><\/pre>\n\n\n\n
Step 3: <\/strong>Install the application<\/p>\n\n\n\n
curl -ssL https:\/\/github.com\/simplificator\/sitincator\/raw\/master\/scripts\/automatic_updates.sh | bash<\/code><\/pre>\n\n\n\n
Note<\/strong> The above install command will install the application and start running the initial configuration. But first we need to copy the previously obtained JSON file to the app\u2019s directory<\/p>\n\n\n\n
Step 4:<\/strong> Press Ctrl + C<\/strong> to come out of initial configuration<\/p>\n\n\n\n
Step 5: <\/strong>Open command prompt on the computer and navigate to the location of the downloaded \u201cclient_secret.json\u201d file<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Note <\/strong>Here, \u201ccd\u201d command can be used to open directories<\/p>\n\n\n\n
Step 6:<\/strong> Type the following to transfer the \u201cclient_secret.json\u201d file to \u201c\/Sitincator\/resources\/app\/config\u201d directory on the reTerminal<\/p>\n\n\n\n
scp client_secret.json pi@192.168.1.85:\/home\/pi\/Sitincator\/resources\/app\/config<\/code><\/pre>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Note<\/strong> Here \u201cpi\u201d is the username and 192.168.xxx is the IP address of reTerminal<\/p>\n\n\n\n
Step 7:<\/strong> Come back to terminal window of reTerminal and run the application<\/p>\n\n\n\n
\/home\/pi\/Sitincator\/Sitincator<\/code><\/pre>\n\n\n\n
Step 8:<\/strong> When it asks for the calendar ID, find the calendar ID, by first visiting Google Calendar<\/a><\/p>\n\n\n\n
Step 9:<\/strong> After that, under \u201cMy calendars\u201d, next to your calendar name, click on the 3 dots and select \u201cSettings and sharing\u201d<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 10:<\/strong> Click on \u201cIntegrate Calendar\u201d and find the \u201dCalendar ID\u201d<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 11:<\/strong> On the reTerminal, type this calendar ID and press enter<\/p>\n\n\n\n
Step 12:<\/strong> Copy the generated URL and paste on a browser<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 13:<\/strong> Select you Google account<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 14:<\/strong> Click Continue and then Continue again to allow access to your Google Account<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 15:<\/strong> Copy the generated code and paste inside the terminal window of reTerminal<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
Step 16:<\/strong> Press Ctrl + C<\/strong> to come out of the configuration<\/p>\n\n\n\n
Run the Application<\/h2>\n\n\n\n
There are different methods of running the application<\/p>\n\n\n\n
Method 1: Via VNC<\/h3>\n\n\n\n
If you are logged into reRerminal via VNC, you can open a terminal and execute the following:<\/p>\n\n\n\n
\/home\/pi\/Sitincator\/Sitincator<\/code><\/pre>\n\n\n\n
Method 2: Via SSH<\/h3>\n\n\n\n
If you have logged into reTerminal via SSH, you can type the following in the SSH client<\/p>\n\n\n\n
DISPLAY=:0 \/home\/pi\/Sitincator\/Sitincator<\/code><\/pre>\n\n\n\n
Method 3: Via reTerminal LCD<\/strong><\/h3>\n\n\n\n
You can also use the reTerminal itself, open a terminal and type the following using the on-screen keyboard<\/p>\n\n\n\n
\/home\/pi\/Sitincator\/Sitincator<\/code><\/pre>\n\n\n\n
Note:<\/strong> Click on the Raspberry Pi logo, Universal Access > Onboard, to access the on-screen keyboard<\/p>\n\n\n\n
Method 4: Using desktop shortcut<\/h3>\n\n\n\n
We can also create a desktop shortcut so that we can easily double-click on the shortcut to open the application<\/p>\n\n\n\n
Step 1:<\/strong> Navigate to the Desktop directory<\/p>\n\n\n\n
cd Desktop<\/code><\/pre>\n\n\n\n
Step 2:<\/strong> Create a new .desktop file<\/p>\n\n\n\n
sudo nano meetingApp.desktop<\/code><\/pre>\n\n\n\n
Step 3:<\/strong> Copy and paste the following inside the file<\/p>\n\n\n\n
[Desktop Entry]\nEncoding=UTF-8\nName=meetingApp\nComment= Intelligent Meeting Room Reservation System\nExec=\/home\/pi\/Sitincator\/Sitincator\nType=Application\nCategories=Application;\n<\/code><\/pre>\n\n\n\n
Step 4:<\/strong> Press “Ctrl + x”, \u201cy\u201d and ENTER, to save and close the file<\/p>\n\n\n\n
Now you will see a shortcut name meetingApp, on the reTerminal desktop and you can open the app by double clicking on it.<\/p>\n\n\n\n
After we run the application, it will look like below:<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
How to use the application?<\/h2>\n\n\n\n
Now let\u2019s go through the application and find out how the application can be used.<\/p>\n\n\n\n
You can watch the video below to learn all about how to use this application.<\/p>\n\n\n\n
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